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Abstract and Figures

Honey, propolis, bee pollen, bee bread, royal jelly, beeswax and bee venom are natural products which have been used in medicine since ancient times. Nowadays, studies indicate that natural bee products can be used for skin treatment and care. Biological properties of these products are related to flavonoids they contain like: chrysin, apigenin, kaempferol, quercetin, galangin, pinocembrin or naringenin. Several pharmacological activities of phenolic acids and flavonoids, and also 10-hydroxy-trans-2-decenoic acid, which is present in royal jelly, have been reported. Royal jelly has multitude of pharmacological activities: antibiotic, antiinflammatory, antiallergenic, tonic and antiaging. Honey, propolis and pollen are used to heal burn wounds, and they possess numerous functional properties such as: antibacterial, anti-inflammatory, antioxidant, disinfectant, antifungal and antiviral. Beeswax is used for production of cosmetics and ointments in pharmacy. Due to a large number of biological activities, bee products could be considered as important ingredients in medicines and cosmetics applied to skin.
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Molecules2020,25,556;doi:10.3390/molecules25030556www.mdpi.com/journal/molecules
Review
BeeProductsinDermatologyandSkinCare
AnnaKurekGórecka
1,
*,MichałGórecki
2
,AnnaRzepeckaStojko
2
,RadosławBalwierz
1

andJerzyStojko
3
1
SilesianAcademyofMedicalSciencesinKatowice,Mickiewicza29,40085Katowice,Poland;
radoslaw.balwierz@gmail.com
2
DepartmentofDrugTechnology,FacultyofPharmaceuticalSciencesinSosnowiec,MedicalUniversityof
Silesia,Jedności8,41200Sosnowiec,Poland;mgorecki@sum.edu.pl(M.G.);
annastojko@sum.edu.pl(A.R.S.)
3
DepartmentofToxycologyandBioanalysis,FacultyofPharmaceuticalSciencesinSosnowiec,Medical
UniversityofSilesia,Ostrogórska30,41200Sosnowiec,Poland;jstojko@sum.edu.pl
*Correspondence:akurekgorecka@interia.pl
AcademicEditors:RaffaeleCapassoandLorenzoDiCesareMannelli
Received:date;Accepted:date;Published:28January2020
Abstract:Honey,propolis,beepollen,beebread,royaljelly,beeswaxandbeevenomarenatural
productswhichhavebeenusedinmedicinesinceancienttimes.Nowadays,studiesindicatethat
naturalbeeproductscanbeusedforskintreatmentandcare.Biologicalpropertiesoftheseproducts
arerelatedtoflavonoidstheycontainlike:chrysin,apigenin,kaempferol,quercetin,galangin,
pinocembrinornaringenin.Severalpharmacologicalactivitiesofphenolicacidsandflavonoids,and
also10hydroxytrans2decenoicacid,whichispresentinroyaljelly,havebeenreported.Royal
jellyhasmultitudeofpharmacologicalactivities:antibiotic,antiinflammatory,antiallergenic,tonic
andantiaging.Honey,propolisandpollenareusedtohealburnwounds,andtheypossess
numerousfunctionalpropertiessuchas:antibacterial,antiinflammatory,antioxidant,disinfectant,
antifungalandantiviral.Beeswaxisusedforproductionofcosmeticsandointmentsinpharmacy.
Duetoalargenumberofbiologicalactivities,beeproductscouldbeconsideredasimportant
ingredientsinmedicinesandcosmeticsappliedtoskin.
Keywords:beeproducts;flavonoids,phenolicacids;skincare;therapeuticproperties
1.Introduction
Nowadays,alternativemedicine,whichemploysnaturalbiologicallyactivesubstancesobtained
frombeeproducts,isgettingmoreandmoreattention.Beeproductshavebeenusednotonlyin
treatment,butalsoforskincareasingredientsofcosmetics.Theeffectofbeeproductsontheskin
hasalsobeenprovedbynumerousstudies,andtheuseofhoney,propolis,beepollenandbeevenom
inwoundhealinghighlightstheircurativevalue[1–4].Eachbeeproductpossessesspecificactive
substanceswhichdetermineitsuseforvariousskinproblems.Honey,propolis,beepollen,beebread,
beeswaxandbeevenomarethebeeproductswhichareusedformedicinalpurposesandcosmetic
production.
Honeyisanaturalproductwhichismadebybeesfromnectarandhoneydew.Honeyisa
supersaturatedsolutionofcarbohydrateswithnumerouspropertiesandwideuse.Propolis,also
calledbeeglue,isaresinoussubstancecollectedbybeesfrombudsoftrees,shrubs,andgreenplants.
Both,propolisandhoneywereusedinantiquityforembalmingbodies,whereasfolkmedicineused
honeyforwoundhealingandpainrelief[5].
Beepolleniscollectedfromplantsandtransportedto
thehiveinformofpollenloads.Theformationofloadsinvolvesmoisturizingpollenwithnectaror
honey.Pollenforwintersupplies,whichisdepositedinthehoneycombcells,undergoeslactic
fermentationandproducesbeebread.Beebreadandbeepollenarebactericidalandbacteriostatic
agents[6,7].
Beeswaxisasubstanceproducedbyglandslocatedinthebeeabdomen.Waxobtained
Molecules2020,25,5562of17
fromhoneycombsconstitutesavaluableingredientusedincosmetologyandpharmacy.Beevenom
alsocalledapitoxinproducedbyhoneybee.Itconsistsacomplexmixtureofdifferentpeptidesand
mastcelldegranulatingpeptide,whichtherapeuticandcosmeticpropertiesareusedinmanyareas
[8].
2.SelectedCompoundsofBeeProducts
Thechemicalcompositionofbeeproductsisquitediversified,anddependsonthebotanical
composition,geographicalorigin,timeofcollectionandenvironmentalconditions[9–11].However,
eachproductmadebybeeshasaspecifiedcompositionandcontentofbiologicallyactivesubstances,
whichgivespecificpropertiestoeachbeeproduct.Thechemicalcompositiondeterminesthecurative
andpropertiesoftheseproducts.
Honeycontainsatleast181ingredients[12].Honeyisasupersaturatedcarbohydratessolution
containingmainlyglucoseandfructose[13].Moreover,honeycanhaveinitscompositionofsucrose,
rhamnose,trehalose,nigerobiose,isomaltose,maltose,maltotetraose,maltotriose,maltulose,
melezitose,melibiose,nigerose,palatinose,raffinose,anderlose[14,15].Italsocontainsenzymes,
namely,glucoseoxidase,amylase,catalase,peroxidase,invertase,andlysozyme.Glucoseoxidase
produceshydrogenperoxidewhichisoneofresponsiblesubstancesforthebactericidalactivityof
honey[16].Honeycontainsalsoorganicacids:gluconicacid,citricacid,malicacid,lacticacid,
succinicacid,oxalicacid,tartaricacid,formicacid,aceticacid,benzoicacid,andpyromucicacid.The
acidsoriginatefrombeebodiesandenzymaticconversionswhichoccurduringhoneyproduction.
Thecontentoftheseacidsishigherinmaturehoneys.Phenolicacidsandflavonoids,whichare
responsibleformanybiologicalpropertiesandhaveantioxidativeactivity,arealsoimportant
ingredientsofhoney.Thegroupofphenolicacidsincludesderivativesofhydroxycinnamicacidand
hydroxybenzoicacid.Thederivativesofhydroxycinnamicacidarepcoumaricacid,caffeicacid,
ferulicacid,andsinapicacid.Whereas,thederivativesofhydroxybenzoicacidincludep
hydroxybenzoic,vanillic,syringic,salicylicandgallicacidsandellagicacidasadimerofgallicacid
[15].Inhoney,flavonoidsarerepresentedbynaringenin,hesperetin,pinocembrin,chrysin,galangin,
quercetinandkaempferol.However,asignificantdecreaseintheconcentrationofgalangin,
kaempherol,andmyricetinisobservedafterhoneyhasbeenheated,whilepasteurizationcausesa
substantialdecreaseinmyricetinconcentration[17].Honeycontainsalsoessentialoils,whose
compositionincludesterpenes(thymol,bisabolol,farnesol,andcineol).Othercomponentsofhoney
comprisewater,aminoacidsandproteins.Proline(50–80%)dominatesamongaminoacids,andits
increasedpresenceindicateshoneymaturity[14].Vitaminsconstituteasmallgroupofcompounds
presentinhoney,andtheyaremainly:thiamine,riboflavin,pyridoxine,paminobenzoicacid,folic
acid,pantothenicacid,andvitaminsA,C,E.Honeycontainsalsominerals:phosphorus,potassium,
calcium,magnesium,sulfur,iron,copper,manganese,andzinc.Althoughthereisonlyasmall
amountoftraceelementsinhoney,theyarehighlybioavailable.Itwasreportedthatcopper,calcium,
zinc,iron,manganeseandmagnesiumfromhoneyarecharacterizedabioavailabilityof80–90%[18].
Intermsofchemicalcomposition,propolisisaverydiverseproduct.Atpresent,atleast300
activecompoundshavebeenidentifiedinit[19].Phenolicacids(caffeic,ferulic,chlorogenic,p
coumaric),benzoicacid,cinnamicacidandflavonoidsarethemostimportantbiologicallyactive
compounds.Amongflavonoids,wecanenumeratechrysin,luteolin,apigenin,galangin,kaempherol,
quercetin,pinostrobin,pinocembrin,andterpenecompounds,whosecontentis0.5%(bisabolol),and
alcohols(cetyl,myricyl,mannitolandinositol)[20–22].Propoliscontainsalsominerals(calcium,
magnesium,manganese,zinc,copper,iron,cobaltandselenium),vitamins(B1,B2,B6,CandE)and
enzymes(succinatedehydrogenase,glucose6phosphatase,adenosinetriphosphatase,acid
phosphatase)[22,23].
Beepollencomprisesatleast200biologicallyactivesubstances.Proteinsconstituteabout22.7%
ofbeepollencomposition,including10.4%essentialaminoacids:methionine,lysine,threonine,
histidine,leucine,isoleucine,valine,phenylalanine,tryptophan.Digestiblecarbohydratesconstitute
30.8%,whilethepercentageofreducingsugarsis25.7%.Amongthefattyacidspresentinbeepollen,
wecanlistacidssuchasgammalinolenicacid,arachidonicacid,andlinoleicacid(0.4%).
Molecules2020,25,5563of17
Additionally,nucleicacidsandnucleosidesarevaluablecomponentsofbeepollen[2,24].Itcontains
alsovitamins(B1,B2,B3,B5,B6,C,H,E)andminerals(potassium,calcium,phosphorus,iron,zinc,
copper,manganese)[9].
Proteincontentinbeebreadis12%lowerthanitscontentinbeepollen.Thecontentofreducing
sugarsincreasesby40–50%,whereasthecontentoflacticacidrisesto3.1%.Beebreadcontains
vitaminKandenzymeswhichcannotbefoundinbeepollen[25,26].Beebreadisalsoagoodsource
ofphenoliccomponents.AmongbeebreadfromdifferentpartsoftheBalticRegionthepcoumaric
acid,ferulicacid,caffeicacid,kaempherol,isorhamnetin,naringeninandquercetinwereidentified
[27].
Royaljellycontainspeptides:jelleinesI,II,III,IV,proteins,carbohydrates,lipids,vitaminsand
minerals[28].Amongproteinswecanlistroyalisinandenzymes:amylase,invertase,catalase,acid
phosphatase,andlysozyme.Proteinsofroyaljellyarerichinexogenousaminoacids.The
carbohydratesinroyaljellyaremainlymonosaccharides:fructose,glucoseandoligosaccharides.
Lipidsplayanimportantroleinroyaljellycomposition[29].10hydroxytrans2decenoicacid,3
hydroxydodecanoicacid,and11oxododecanoicacidcanbeincludedintothemostvaluableones
[28].10hydroxytrans2decenoicacid(10H2DA)isthemainandspecificlipidcomponentofthis
product.10H2DAisusedasamarkertovalidatethequalityofroyaljelly[28,30].Royaljellycontains
alsovolatilecompoundssuchasphenol,guaiacolandmethylsalicylate.Inroyaljelly,therearealso
presenttraceamountsofsuchbioelementsaspotassium,sodium,magnesium,phosphorus,sulfur,
calcium,zinc,iron,andcopper.RoyaljellycontainsmainlyvitaminsfromgroupB:thiamine,
riboflavin,pyridoxine,pantothenicacid,nicotinicacidandbiotinanditisalsocontainsphenolic
compounds:ferulicacid,quercetin,kaempherol,galanginandfisetin,pinocembrin,naringinand
hesperidin,apigenin,acacetin,andchrysin[31,32].
Estersofacidsandfattyalcoholsaremainconstituentsofbeeswaxandsubsequentcomponents,
inrespectofamount,arefreefattyacids[33].Amongthelatter,10hydroxytrans2decenoicacid
(10H2DA)exhibitsantibacterialeffect,whichisimportant.Beeswaxiscomposedofhydrocarbons
andfreefattyalcohols[34,35].Freefattyalcoholssuchastriacontanol,octacosanol,hexacosanol,and
tetracosanolareantioxidativeandantiinflammatory.Othersubstancesaretriterpenes,βcarotene,
volatilecompoundsandphenoliccompounds.Amongflavonoids,themainroleisplayedbychrysin,
whichrelievesinflammation,hasantimicrobialandregenerativeeffects.Sterolshavearegenerative
effect,whereasanantisepticeffectisprovidedbythreecomponents:10hydroxytrans2decenoic
acid,chrysin,andsqualene[34,36].
Beevenomcontainsdifferentpeptidesincludingmelittin,apamine,adolapin,sekapin,
prokaminandmastcelldegranulatingpeptide[37].Peptidesaremaincomponentsofbeevenom.
Amongpeptidesespeciallymelittinplaysimportantroleininducingreactionsassociatedwithbee
stings.Melittininducesmembranepermeabilizationandlysescells.Itpossessesalsobiologically
activeamineslikehistamine,epinephrine,dopamine,norepinephrineandenzymeslike
phospholipaseA2,hyaluronidase,acidphosphomonoesterase,lysophospholipase.Beevenomhas
anothercomponentsthanpeptidesincludinglipids,carbohydratesandfreeaminoacids[8,38,39].
3.BeeProductsasRawMaterialforMedicinesandCosmeticsProduction
Honeyincosmeticsisnamed“Honey”or“Mel”accordingtotheInternationalNomenclatureof
CosmeticIngredient(INCI),itisanemollientorhumectant,andexhibitsmoisturizingproperties.
Somecosmeticscontainderivativesofhoney,definedintheINCIas“MelExtract”withmoisturizing
properties,“HydrogenatedHoney”whichishumectant,andantistatic“Hydroxypropyltrimonium
Honey”.Hydroxypropyltrimoniumhoneyisusedinshampoosandhairconditioners.Moreoftenthe
concentrationofhoneyincosmeticsisupto10%.Higherconcentrations(upto70%)areobtainedby
dispersinginoils,gelsorpolymerentrapment[40].
Mostfrequently,propolishasaformofaqueousorethanolextracts.AccordingtotheINCI
nomenclature,incosmeticswecanfinditunderthefollowingnames:propolisandpropolisextract.
Ethanolextractsofpropolisaremostfrequentlyused.Toobtainthem,propolisisextractedwith70%
ethanol,andthentheextractisconcentratedinreducedpressureconditions[41].Anaqueousextract
Molecules2020,25,5564of17
ofpropolisisusedinantifungalcosmetics,whilepropolisdissolvedinfatsisusedtoproduce
lipsticks.
Royaljellycanmostfrequentlybefoundincosmeticsinalyophilizedform,andthehigher
percentagecontentoflyophilizedroyaljellyis,thelessviscouscreambecomes.However,royaljelly
contentdoesnotaffectemulsionstability.Preparationswithahighercontentofroyaljellyarewell
absorbed,anddonotleavegreasyfilm.Creamswithroyaljellyhavemoisturizingproperties
especiallyinconcentrationof0.5%and1%[42].
Incosmeticmanufacturing,beepollenisusedinaformofaqueous,lyophilizedandlipid
extracts.Activesubstancescanbeextractedwithwater,propyleneglycols,glycerinandoils.Bee
pollenextactsareusedincosmeticinconcentrations0.5–5%[43].Innaturalcosmetics,driedgrains
ofbeepollenmicronizedandaddedtocosmeticsarealsoused.
Beeswaxisusedincosmeticsafterhoneyhasbeenremovedfromhoneycombs,waxhasbeen
melted,andimpuritieshavebeenseparated.Todothis,varioustypesofwaxextractorsareused:
solar,electricorsteamones.Yellowwax(Ceraflava)orwhitewax(Ceraalba)isusedtoproduce
cosmetics[34].
AccordingtoINCI,beevenomorapitoxinaredefinedasbeevenompowder.Itisyellowlight
powderobtainedbycollectingalargeamountofbeevenombyelectricstunningwithusingabee
venomcollectorwithoutharmingthehoneybee.Thenbeevenomhastobepurifiedunderstrict
laboratoryconditions.Innextsteppurifiedbeevenomisdilutedinwater,centrifuged,lyophilized
andrefrigeratedforuseascosmeticingredient[44].Itisusedasacosmeticingredientswhich
possessesantiaging,antiinflammatoryandantibacterial,antifungalandantiviraleffects.Beevenom
isusedtoproduceantiphotoagingandantiacneproducts[8,44].Beevenomisusedintreatment
psoriasis,atopicdermatitisandalopecia[39].
4.TheEffectofBeeProductsontheSkin
4.1.Honey
Honeyisusedinmedicineincludingduetoitsantimicrobialeffect,whichresultsfromthe
followingfactors:hydrogenperoxide,highosmoticpressure,highacidity,thepresenceofphenolic
acids,flavonoidsandlysozyme[45].Honeyinhibitsthegrowthofbacteriaandfungibyreducing
theirdevelopmentontheskinsurface.Honeyisparticularlysuitableasadressingforwoundsand
burns,andhasalsobeenincludedintreatmentsagainstpityriasis,tinea,seborrhea,dandruff,diaper
dermatitis,psoriasis,hemorrhoids,andanalfissure[40].Pinocembrinandlysozymeareresponsible
forantifungalproperties.Lysozymeinhibitsgrowthofyeastlikefungi[46].Theeffectofhoneyon
healingpostsurgicalwoundswasdocumented[1].Among52patientsincisionsonskinwerecovered
withhoneydressing.Theaestheticoutcomeafterthirdandsixmonthswasrated.Thewidthofthe
scarswassmallerincomparetoconventionaldressing.After5dayapplicationofhoneydressing,an
analgesiceffectwasobtainedandwoundhealingwasacceleratedinwomenafterplasticsurgeries.
HoneyinducedextracellularCa2+entryresultsinwoundhealing.ItissimilartoroleplaysbyCa2+
signalingintissueregeneration[47].Moreoverhoneyregulatestheprocessofepithelial
mesenchymaltransition(EMT)andithasapositiveimpactonwoundhealing.TheeffectonEMT
dependsonthefloralandoriginofthehoney[48].Honeyistheapitherapeuticagentintopical
woundstreatmentduetokillingbacteria,abilitytobacterialbiofilmpenetration,lowingwoundspH,
Reducingpainandinflammation,promotingfibroblastmigrationandkeratinocyteclosure,
promotingcollagendepositionsohoneyhasapotentialroleintheareaoftissueengineeringand
regeneration.Honeyshouldbeconsideredtoincorporateittothebiomaterialtissuetemplatesfor
tissueregeneration.Honeywasusedinelectrospuntemplates,cryogelsorhydrogels[49].Themain
problemofusehoneyintissueengineeringare:cytotoxicityofhighconcentrationsofhoney,thelack
ofprolongedreleaseratesofthehoneyovertime.Sofutureresearchshouldfocusontheseaspects.
Amongdifferenttypesofhoney,astrongantibacterialeffectwasobservedinmanukahoneywhich
containslargeramountofmethylglyoxalthanEuropeanhoneys[50].Theantibioticactivityof
manukahoneyisestimatedbyUniqueManukaFactor(UMF)andmethylglyoxal(MGO)markers
Molecules2020,25,5565of17
[46].Duetoanincreasedcontentofglucoseoxidase,ahigherlevelofhydrogenperoxidethanin
Europeanhoneyscanbeobserved[51].Hydrogenperoxideisresponsibleforproducefreeradicals,
whichcauseoxidativedamagetobacterialcellwalls.TheantimicrobialeffectofhoneyfromNew
Zealandisalsoevidentinundilutedhoneysanditisnotabolishedbycatalases,whichdifferentiates
manukahoneyfromothertypesofhoney.Thistypeofhoneyisusedinthetreatmentofvarious
wounds,includingburns.TheinhibitionvalueagainstStaphylococcusaureusFDA209Pofmanuka
honeyindilutionsfrom1:2to1:128isdeterminedintherangeof2.0–4.5[50].Manukahoneyisused
inmedicinetohealburns,ulcersandwoundsdifficulttoheal,andbringssatisfactoryresults.Manuka
honeyalsosoothesguminflammation,andinhibitstheformationofdentalplaque,fightsthrush,and
preventsperiodontitis[52].AnothervarietyofhoneywithantibacterialactivityisRevamilfromThe
Netherlands.TheantibioticfactorinRevamilisthepeptidedefensin1[46].Beedefensin1
permeabilizesbacteriaandinhibitstheirRNA,DNAandproteinsynthesis[49].Howeverinother
varietiesofhoneyalsothephenoliccompoundsareresponsibleforantibacterialeffect.
Honeyisabeeproductwithahighnutritionalvalueandregenerativepropertiesthatiswhyit
isusedinskincareproducts.Ahighcontentofcarbohydrates,thepresenceoffruitacidsandtrace
elementsareresponsibleforitsnutritionalandregenerativeeffects.Thankstoosmosis,
microcirculationinthedermaltissueisstimulated,whichresultsinitsbetternutritionand
oxygenation.Inthisway,metabolicprocessesarealsostimulated,whichleadstoeliminatingharmful
metabolites,andincreasingregenerativeprocesses.Additionally,honeyhashygroscopicproperties,
absorbingmetabolites,andcausingdetoxificationofthedermaltissue.Thisresultsinanincreasein
theskintension,improvementofitselasticity,revitalizingitscolor,andsmoothingoutwrinkles[52].
Fruitacids,ashoneycomponents,provideanexfoliatingeffectfordeadskincells.Honeycanbeused
aspeelingagentinasugaredform[53].Asaresult,manyvaluablenutritionalcomponents,including
vitamins,candiffusethroughtheskinmoreeasily.Xerosisisrelievedbyfattyacidsandmineralsalts
inhoney.Honeysoothesskinirritations,itisagoodcosmeticforchappedlips,rough,crackedhands,
andfrostbites.Honeyisusedinbalmsandbathproductsbecauseofitstoning,relaxing,conditioning
effectsrelatedtothehighcontentofsimplesugars,thepresenceofessentialoils,andbioelements
[53].Duetothepresenceofflavonoids,honeycanalsoplayanimportantroleinsunprotectionby
preventingskinirritation[40].
4.2.Propolis
Propolisiswidelyusedinmedicine.Thankstoitsantisepticpropertiesitisusedindermatology
totreatstaphylococcal,streptococcalandfungalinfections.Purulentskininfections,hidradenitis,
intertrigo,cheilosis,andthrush,amongotherthings,aretreatedwithpropolis.AsreportedthePropol
T,whichisapropolispreparation,ishighlyeffectiveintreatmentofskinburns[54].Thereare
comparabletherapeuticeffectswhenpropolisandsulfathiazoleareused,however,beeglueissafer,
andhasfeweradverseeffects.Propolisisnotonlyantimicrobialandantiinflammatorybutalsoit
increasescicatrizationandreducespain.Chrysin,whichisaflavonoid,providesananalgesiceffect.
Propolisusedtotreatburnwoundsinpigsincreasedfibrolastproliferation,activationandgrowth
capacity.Propolisstimulatesglycosaminoglycanaccumulationwhatisneededforgranulation,tissue
growthandwoundclosure.Propolisasapitherapeuticagentismoreeffectivelythansilver
sulfadiazine.AccumulationofcollagentypeIinmatrixofaninjurystimulatestherepairprocess
becausecollagentypeIisindispensableforthekeratinocytemigrationandreepithelization.
Moreover,propolisincreasedaccumulationofcollagentypeIIIwhataccelerateshealthyprocess.The
usageofpropolisointmenttotreatburnsasatopicalapitherapeuticproductcouldcontributeto
reepithelization[3].Topicallyappliedpropolisdecreasedpersistentinflammatoryindiabetic
woundsbynormalizingneutrophilandneutrophilelastase.Caffeicacidisresponsibleforanti
inflammatoryeffectofpropolis[55].Genisteinfrompropolisacceleratedwoundhealingand
stimulatedwoundangiogenesisinmicewithdiabetestype1[56].Furthermorepropolismaybe
effectiveinhealingindifferentanimalmodelsincludinganimalswithburnsanddiabeticwounds
[3,55,56].MoreoverpropolisishighlyeffectiveinthetreatmentofAcnevulgaris.Researchers
confirmedthelimitationofoccurrenceofCutibacteriumacnes,i.e.,abacteriumwhichplaysakeyrole
Molecules2020,25,5566of17
inacnevulgarispathogenesis,afterethanolextractofpropoliswasappliedtotheskin[57].The
ethanolextractofpropolisinhibitsalsoStaphylococcusepidermidis.Propolisisusedtomanufacture
cosmeticsfortheskinwithacne,andtoproducedrugsagainstbacterialandfungalinfections[58].
Propolisintheconcentrationof5–20%hasregenerative,repaireffectsandprotectsagainstexternal
factors.Itcanbeusedtoproduceantibedsorespreparations,sinceitfirmsthedermaltissueand
protectsitagainstpathogenicmicrobes[59].Propolisprotectsalsofromultravioletradiation,sinceit
canabsorbUVlightduetothepresenceofcaffeicacid,coumaricacid,andferulicacid.Propolisisa
goodadditivetosunblockers(creams,lotions,sticks,andlipsticks)duetoitspropertiesofanatural
filter,aswellasantioxidative,antiinflammatoryandregenerativeeffects[60].Otherresearchers
showedthatRomanianpropolishadphotoprotectiveeffectsagainstUVBaftertopicalapplicationto
30Swissmice[61].Propolisisalsousedtoproduceprotectivelipsticks.Itisregenerativeandantiviral
incoldsorescausedbyherpexsimplexvirus.Flavonesandflavonolsfrompropolis,especially
galangin,kaempferol,quercetin,haveahighantiviralactivityagainstherpessimplexvirustype1in
vitro[62].Nolkemperetal.observedthatboth,aqueousandethanolextractsofpropoliswere
stronglyantiviralagainstherpessimplextype2(HSV2)[63].Skincarewithproductsbasedon
propolisishelpfulagainstfungalproblemsoftheskinduetothepresenceofflavonoids(pinocembrin
andpinobanksin),phenolicacids(caffeicacid)andterpenes[59].Pinocembrinisolatedfrompropolis
inhibitsthemycelialgrowthofPenicilliumitalicumbyinterferingenergyhomeostasisandcell
membranedamageofthepathogen[64].Shampooswithbeegluecanbeanaturalalternativein
treatmentofdandruffandpreventionofitsrecurrenceduetoitsantifungalandantiseborrheic
properties.Propolishasalsobeenusedformanufacturingtoothpastes.Beeglueinhibitsthe
formationofdentalplaqueandisantimicrobial,therebyitreducesdentalcariesdevelopment.
Propolisethanolextractsinhibitthegrowthofcariogenicbacteria,whichincludemainly
StaphylococcusmutantandStaphylococcussobrinus.Glucosyltransferasemakesbacteriaproduceglucan
theyfeedon,whichisinsolubleinwater.Propoliseliminatescariogenicbacteria,inhibitstheactivity
ofglucosyltransferase,andreducesadherentabilitiesofbacteria[65].Theconductedstudiesshowed
thattheuseoftoothpastewithpropolisreduceddentalplaqueby34.3%annually,whereasnormal
pastereducedtheplaqueby31.9%.Aftertwoyearuseofthepastewithpropolisafurtherreduction
ofplaqueby12.4%wasobserved,whilenormalpastemanagedtoreduceitonlyby5%.Rinsingthe
mouthwithwaterwith0.5%propoliscontentcomplementstheoralcavitycare.After21days,this
solutionwasabletoreducedentalplaqueby18.1%[66].Propolissmoothesoutwrinklesandhas
antiagingproperties.Ahugeroleisplayedherebyantioxidantssuchasphenoliccompoundsand
flavonoidswhichneutralizeanunfavorableeffectoffreeradicalsontheskin.Beegluelightensand
smoothenstheskin,reducessignsoffatigueandmoisturizesit[59].
4.3.RoyalJelly
Royaljellyhasabroadspectrumofbiologicalactivitieswhichdeterminetheeffectofroyaljelly
ontheskin,namely,antibacterial,antiinflammatory,immunomodulatory,antiallergic,antioxidant,
toning,moisturizing,andantiaging[67].Royaljellyisabeeproductwithstrongantimicrobialactivity
withinskintissue,whichisalreadyevidentin20%concentration.Duetoitsantiinflammatory
activity,royaljellyrelievesperiodontaldiseases,inflammationoftheoralcavity,tongueandthroat.
Antiinflammatoryactivityandwoundhealingresultsfromitsabilitytoinhibittheproductionof
proinflammatorycytokines(TNF‐α,IL6,IL1).Royaljellyhasaprotectiveeffectonbloodvessels
andrelieveshemorrhoids,andvaricoseveinsofthelowerextremities.Itisusedtotreatlichen,ulcers,
burns,bedsores,shingles,inallcaseswheretheregenerationofepidermisisexpected,wound
epithelialization,nutritionaleffect,healingandantimicrobialactivity.Theeffectof5%royaljellyon
ulcersonthediabeticfoothasbeenstudied.Thetreatmentlasted3monthsandinvolveddressing
thewoundwith5%sterileroyaljelly3timesaweek.Amongeighttreatedulcers,sevenwerecured,
andinonecaseanimprovementwasobserved[68].Royaljellypromoteswoundreepithelization.
ThekeratinocytesareresponsiblefortheelevatedproductionofMMP9(matrixmetalloproteinase
9)afterincubationwithawaterextractofroyaljelly.Afterapplyingwaterextractofroyaljelly
increasedkeratinocytemigrationandwoundclosurerates.Thecomponentofroyaljellyresponsible
Molecules2020,25,5567of17
forstimulatingMMP9productionisdefensin1.Moreoverdefensin1promotesreepithelizationand
woundclosure.Similarlyasinhoney,defensin1isresponsibleforcutaneouswoundclosureby
enhancingkeratinocyteandMMP9secretion[69].Royaljellyiseffectiveinthetreatmentofwounds,
andissuccessfullyusedincosmeticsforproblemskincare.Royaljellyisaningredientof
preparationsnormalizingsebumsecretion,forseborrheicskin,acneproneskinwherefrequently
skinlesionsandsmallwoundsoccur[31].Duetostimulatingmetabolismintissues,royaljelly
improvesregenerativeprocessesoftissues.Regenerative,nutritionalandhealingpropertiesareused
inbalms,creams,andlotions.Immunomodulatoryandantiallergenicactivitiesofroyaljellyare
relatedtothepropertiesoffattyacids,isolatedfromit.Both,10HDAand310dihydroxydecanoic
acidmodulateimmuneresponseandlowertheconcentrationofIL2andIL10.Antiinflammatory
andimmunomodulatoryactivitiesofroyaljellywereusedtotreatatopicdermatitis,hypertrophy,
hyperkeratosisandepidermisanddermisinflammation,possiblythroughablendofTNFspecific
lowadjustmentofIFNgammaspecificproductionandhighadjustmentofnitricoxidesynthase
(NOS)expression[70].10hydroxytrans2decenoicacid,whichispresentinroyaljelly,stimulates
fibroblastproductionofcollagenbyinductingtheproductionoftransforminggrowthfactor.Asa
result,royaljellyaffectstheproductionofcollagen,whichisanimportantfactorthatsupportsthe
skin[28].Royaljellyishighlymoisturizing,andaffectshydrationofthestratumcorneumbyretaining
waterinit.Inconsequence,theskinbecomemoreelasticandbettermoisturized[42].
4.4.BeePollen
Beepollen,anotherbeeproduct,canalsoaffecttheskin.Beepollenisapotentantifungal,
antimicrobial,antiviral,antiinflammatory,immunostimulatingagent,anditalsofacilitatesthe
granulationprocessofburnhealing[71].PollenethanolextractisantimicrobialagainstStaphylococcus
aureus,Escherichiacoli,Klebsiellapneumoniae,Pseudomonasaeruginosa,andhasanantifungalactivity
againstCandidaalbicans.Flavonoidsandphenolicacidsprovideantifungalandantibacterial
propertiesofbeepollen.Antiinflammatoryactivityofbeepollenisduetoinhibitingtheactivityof
enzymesparticipatinginthedevelopmentofinflammation,i.e.,cyclooxygenaseIIandlipoxygenase.
Phenolicacids,fattyacidsandphytosterolsareresponsibleforantiinflammatorycharacteristics.
Additionally,kaempferolinhibitshyaluronidaseandelastase,whichsuppressesinflammatory
response.Besides,topicalapplicationofointmentwithpollenextracttotreatburnshasbeenstudied,
sincebeepollencanregeneratedamagedtissues[2].
Beepollenisanactiveingredientincosmetics,usuallyintheconcentrationof0.5–5%[43].Its
significanteffectontheskintissueisduetoahighcontentofflavonoids.Theirpresenceallowsbee
pollentostrengthenandsealcapillaries,whichisalsoincreasedbyhighvitaminCcontent,andthat
iswhybeepollenisusedincreamsforcouperoseskin.Beepollenaffectscellmetabolism,boosts
regenerationandstimulatesmitoticdivision.Beepollenisusedtoproduceshampoosand
conditioners.Itssebobalancingactivity,whichinvolvesreducingsebumsecretion,isusedin
preparationsforoilyhair. Beepollennormalizestheactivityofsebaceousglandsduetopresenceof
zinc,methionineandphospholipids.Moreover,sulphurcontainingaminoacids,mainlycysteine,
presentinbeepollenstrengthenhairshaft.Beepollenisalsoaddedtoantidandruffshampoos,since
itlimitsfungalgrowthandstopsitchingofthescalp,butitstillhasmoisturizing,conditioningand
regeneratingproperties.Otherresearchersinformthatagoodsolutionwouldbetomixethylesters
ofessentialunsaturatedfattyacidsfromflaxseedswithbeepollen.Essentialfattyacids(EFA)would
playtheroleoflipidfractionsolvent.Preparationswithomega3andomega6acidsenrichedwith
diversepropertiesofbeepollencouldhelpinthecareofatopicskin,sensitiveskin,andtheskinmore
vulnerabletoscarring[43].
4.5.Beeswax
Whencomparedtootherbeeproducts,beeswaxhasthesmallestrangeofbiologicalactivities.
Kędzia[34]wrotethatbeeswaxwasaddedtoointments,linimentsandcreamsusedintreatmentof
variousdermatoses,e.g.,boils,wounds,atopicdermatitis,psoriasis,diaperdermatitiscausedby
Candidaalbicans.Beeswaxismainlyusedasanemulsifyingagent.Incosmetics,beeswaxisusedasa
Molecules2020,25,5568of17
stiffener,asubstanceprovidingelasticity,plasticityandincreasingskinadhesiveness.Beeswaxisthe
baseforlipsticks,sticksandcreams[72].Beeswaxhaslubricating,softeningactivitiesandreduces
transepidermalwaterlossfromskin.Sterols,whicharealsocomponentsofintercellularspace,
providethesecharacteristicsofbeeswax.Squalene,10hydroxytrans2decenoicacidandflavonoids
(chrysin)provideantisepticpropertiestothisproduct,andprotecttheskinagainstpathogenic
microorganisms.Beeswaxconstitutesaprotectivebarrieragainstmanyexternalfactorsbyforminga
filmontheskinsurface.β‐carotenepresentinbeeswaxisavaluablesourceofvitaminA,intowhich
itisconverted.VitaminAdelayscollagendegradation,stimulatesmitoticdivisionintheepidermis,
thusleadstosoonerregenerationoftheskinafterdamage[34,36].
Themaineffectsofflavonoidsandphenolicacidspresentinabovebeeproductsontheskinare
presentedinTable1.
Table1.Maineffectsofselectedflavonoidsandphenolicacidsonskin.
GroupRepresentativeStructureEffect
Flavones
Chrysin
antiinflammatory[73],
antibacterial&antiviral[74],
antioxidant[22]
Apigenin
antiviral&antifungal[74],
antiallergic[75],
antioxidant[22]
Flavonols
Galangin
antiviral[62],
antifungal[76],
antioxidant[22]
Kaempferol
antiinflammatory[77],
antifungal&antiviral[74],
antioxidant[22],
UVphotoprotective[78]
Quercetin
antiallergic[2],
antiviral&antifungal[74],
antibacterial[12],
antioxidant[79],
UVphotoprotective[78],
antiinflammatory[77]
Flavanones
Pinocembrin
antifungal[76],
antioxidant[22]
Naringenin
UVphotoprotective[80],
antioxidant[79],
antiinflammatory[77],
antiviral[74]
Phenolic
acidspCoumaric
antiviral[20],
antibacterial[46]
O
OH
OH O
O
OH
OH O
OH
O
OH
OH O
OH
O
OH
OH O
OH
OH
O
OH
OH O
OH
OH
OH
O
OH
OH O
O
OH
OH O
OH
OH
O
OH
Molecules2020,25,5569of17
Table1.Cont.
Caffeic
antiinflammatory[55],
antiviral[20],
antibacterial[46],
antifungal[59]
Ferulic
antibacterial[46],
photoprotective[60]
4.6.BeeVenom
Beevenomhasbeenusedinmedicineintreatmentbutalsoasacosmeticingredient.Beevenom
hasawidespectrumofbiologicalactivity.Itexhibitantibacterialandantiinflammatoryeffectssoit
canbeusedasaingredientofantiacneproducts.Beevenomshowsinhibitoryeffectson
Cutibacteriumacnes.Cutibacteriumacnesisthemainfactorinducingtheinflammationinacne.Anet
al.[81]showedthattopicalapplicationbeevenomonmiceskin,whichpreviousobtained
intradermallyinjectedCutibacteriumacnesintoears,limitednumberofinflammatorycellsandalso
reducedleveloftumornecrosisfactor(TNF)‐αandinterleukinIL1β.Moreover,beevenominhibited
Tolllikereceptor(TLR2)andCD14expressionintissuewhichhasbeeninjectedC.acnes.Theseresults
indicatethatbeevenomcanbeusedasantiacneagent.Anotherresearchers[82]alsoshowedpositive
effectsofcosmeticscontainingbeevenomonacnevulgaris.Purifiedbeevenomreducednumberof
C.acnesatconcentrationof0.5mg.Beevenompossessesbactericidalandbacteriostaticeffectsthanks
tomelittin[38].IthasasignificantantibacterialeffectagainstStaphylococcusaureus,Staphylococcus
epidermidisandStaphylococcuspyrogenes[39,83].Melittinisatoxicpeptidethatcausesdestructionof
thebacterialcellwall[38].Beevenomcanbeusedinfungiandviralskininfections.Theantifungal
effectofbeevenomagainstTrichophytonmentagrophytes,Trichophytonrubrum,Candidaalbicansand
Malasseziafurfurwasproved[84–86].Antiviraleffectofbeevenomonherpessimplexvirushasbeen
studied.Beevenomsuppressedthereplicationthisvirus[87].Moreoverbeevenomisapotential
inhibitorof5αreductase,whichisresponsibleforconversetestosteroneintodihydrotestosterone
andplaysimportantroleashairgrowthpromoter,whatwasconfirmedinstudyonalopecia.Bee
venomindifferentconcentrations0.001%,0.005%and0.01%wasappliedincompare2%minoxidil.
Researchersshowedthatbeevenompromotedhairgrowthandinhibitedtransitionfromtheanagen
tocatagenphase.AdditionallybeevenominhibitedtheexpressionofSRD5A2whichencodesa5‐α‐
reductase[88].Beevenomcanplayroleasanewtherapyinlocalizedplaquepsoriasis.Intradermal
beevenomandintradermalbeevenomcombinedwithoralpropolisconstituteeffectivetreatmentof
localizedplaquepsoriasis.BeevenomreduceslevelofIL1β,TNF‐α,andIL6.Beevenomcontains
melittin,whichblockstheexpressionofinflammatorygenes.Additionallybeevenominhibitsthe
COX2expression,sodecreaseproductionofprostaglandinswhichtakepartininflammatoryprocess
[89].Beevenomcompoundspossessvarious,sometimeopposingimmunerelatedeffects.Some
componentsofbeevenomlikeapamin,histamine,mastcelldegranulating(MCD)peptideand
phospholipaseA2(PLA2)increaseinflammatoryresponse,whilepolypeptideadolapininhibits
prostaglandinssynthesisandinhibittheactivityofbeevenomPLA2andhumanlipoxygenase[90].
Antiinflammatoryeffectofbeevenomisusedalsointreatmentatopicdermatitis.Patientswho
appliedemollientwithbeevenomhadlowereczemaarea,severityindexandvisualanaloguescale
valuethanpatientswhoappliedemollientwithoutbeevenom[84].Thebiologicalactivitiesofbee
venomhavebeenusedinwoundshealing.Themechanismofwoundhealingisassociatedwith
expressionsofTGF‐β1,fibronectin,vascularendothelialgrowthfactor(VEGF)andcollagenI.The
research,whichwasconductedinmiceshoweddecreasingofwoundsizeandincreasingepithelial
proliferation.Topicaluseofbeevenomiseffectiveespeciallyinreducingsizeofwoundsinanimal
model[83].Thebeevenomisusinginwounddressingcombinedwithpolyvinylalcoholand
OH
O
OH
OH
OH
O
OH
OCH
3
Molecules2020,25,55610of17
chitosan.4%beevenominwounddressingindiabeticratsacceleratedhealingandlimited
inflammatoryprocess[91].Anotherstudyshowedthat6%beevenomwithchitosansupported
woundhealing[92].Researchersindicatedthatbeevenomstimulatedhumanepidermalkeratinocyte
proliferationandmigration.Beevenomjoinedwithhydrogelincreasedcollagenformation.Bee
venomsupportswoundhealingduetoitsantiinflammatory,antimicrobialandalsoantioxidant
activity.EffectiveactionofbeevenomisveryimportantinhumanmelanomaA2058cells.Tuetal.
exhibitedthatbeevenomleadstoapoptosiscelldeathbyinductionhydroxylradicals[93].Recently
beevenomalsohasbeenusedasantiwrinkleagent.Asacosmeticingredientbeevenomserumata
concentrationof0.006%wasappliedatamount4mLtwiceadayfor12weeksamongtwentytwo
womenfromSouthKorea.Itcauseddecreasingtotalwrinklearea,totalwrinklecountandwrinkle
depth.Moreoverbeevenompossessesantimelanogenicactivitybyinhibitingtyrosinaserelated
proteins[94].ThestudyconductedbyHanetal.[44]reportedthatbeevenomexhibits
photoprotectiveactivitybyreductingoftheproteinlevelsofmatrixmetalloproteinases.Beevenom
effectivelyinhibitsphotoagingprocessessoitcanbeusedforphotodamagedskin.Gelcontaining
0.06%beevenomdidnotleadtophotosensitivedermatitiswhathasbeenconfirmedonanimalmodel
[8,44].
5.AllergicAdverseEffectsofBeeProducts
Theuseofbeeproductsforcosmeticaswellasmedicineproductioncaninvolvetheoccurrenceof
allergicreactions.Anallergytohoneyisseldom,andthemostfrequentallergenfromhoneythatcauses
hypersensitivityreactionsisbeepollen.Additionally,beeproteininhoneycancauseanallergy.Honey
usedtotreatdermatosesundergoesthoroughfiltrationtoeliminateparticlesofbeepollen,whichare
themaincauseofhoneyallergicreactions.HoneyallergyisveryrarebutsometimescausesIgE
mediatedhypersensitivityreaction[95].In2010Basistaconductedstudiesonbeekeepers.Noneofthem
washypersensitivetohoney[96].Morethan26allergenicsubstancesweredeterminedinpropolis
composition.Mostfrequently,anallergicreactioniscausedbyestersofcaffeicacidandcinnamicacid
derivedfrompoplarbuds.Inhypersensitivepeople,theycauseacontactallergicreaction.Duetothe
presenceoftheseestersinothermaterials,crossallergicreactioncanoccur.Themostpotentalergens
are:LB1,i.e.,thecompoundconsistingof3methyl2butylcaffeate(54.2%),3methyl3butylcaffeate
(28.3%),2methyl2butylcaffeate(4.3%),caffeicacid(1.3%),benzylcaffeate(1.0%),caffeicacid
phenethylester(CAPE,7.9%)andbenzylsalicylate.Anallergytopropolisisrare,andanallergic
responsewasmorefrequentlyreportedaftertopicalapplicationthananoralone.Intheyears1989–
2006,theWorldHealthOrganizationregisteredonly26notificationsaboutsideeffectsafterthecontact
withbeeglue,ofwhichjustsixwereconsideredcertain,andtheremainingoneswerenotfullycredible.
Inhealthyindividuals,anallergytopropolisisrarelyobserved(0.64–1.3%),however,itoccursmore
frequentlyinpeopletreatedforallergies(1.2–6.7%).Thishypersensitivityismanifestedbyatopic
eczemaaftertheapplicationofethanolextractofpropolis[97].Moreover,topicalapplicationofroyal
jellyintheformofointmentscancauseskinrashesandeczemas[67].Allergicandirritationreactionof
beevenomhavebeenassociatedwithpresencecomponentslikes:phospholipaseA2,melittin,
hyaluronidase.PhospholipaseA2isamajorallergenwhichisresponsibleforinducingimmuno
globulinE(IgE)[98].MelittincausescelllysisandfusioninadditiontoactivationofphospholipaseA2.
Hyaluronidaseisanextallergeninvenom,whichisresponsibleforchangesincellmembranes.It
causedspreadofvenomtoxinthroughthegapsbetweencells.However,beevenomcanbetoxicwhen
largeamountofvenomisinoculatedintobody[98].However,Hanetal.indicatesthatlongterm
topicallytreatmentwithbeevenomissafewhatconfimedtheirstudy[94].
6.Conclusions
Beeproductsconstituteanimportantcomponentofmedicinesandcosmetics.Honeyis
regenerativeandantimicrobialduetoitshighosmolarity,thepresenceofhydrogenperoxideand
lysozyme.Manukahoneythankstothepresenceofmethylglyoxalisapotentantisepticagent.Propolis
isabeeproductrichinphenoliccompounds,whichdetermineantimicrobial,UVprotective,analgesic,
antioxidativeandregenerativeactivities.Royaljellyischaracterizedbythepresenceofroyalisinand
Molecules2020,25,55611of17
jelleinespeptides.Italsocontains10hydroxytrans2decenoicacidwhichimprovestheproductionof
collagenandisantiseptic.Beepollenisrichinunsaturatedfattyacids,vitamins,flavonoidsandhydroxy
acids.Beeswaxplaysthemostimportantroleasemulsifierofthecosmeticforms.Moreover,beevenom
isanattractiveandeffectivenaturaltoxinrichinpeptides.Itplaysanimportantroleintreatmentand
careskinespeciallyinphotodamage,acne,atopicdermatitis,alopeciaorpsoriasis.Beevenomexhibits
antiinflammatory,antimicrobial,antifungalandantiviralaction.Eachofthebeeproductsis
characterizedbythecontentofcertainactivesubstances,whichdifferentiatesonebeeproductfrom
another,andcausesthateachofthemisworthusingforadifferentskinproblem.Theeffectofbee
productsontheskinhasbeenprovedbynumerousstudies,whoseresultsaresatisfactory,andtheuse
oftheseproductinwoundhealinghighlightstheircurativevalue.Theadvantageofmedicinesand
cosmeticsbasedonbeeproductsistheireffectivenesswithminimalsideeffects. Table2summarizes
skindiseaseswherethetherapeuticapplicationofbeeproductshasbeenstudied.
Table2.Thesummaryoftheskindiseaseswherethetherapeuticapplicationofbeeproductshasbeen
studied.
Bee
ProductComponentsEffectDiseaseReference
Honey
pinocembrin,lysozymeantifungaltinea[13,46,64]
methylglyoxal,defensin1
peptide,lysozyme,glucose
oxidase,phenolicacids
antibacterialwounds,burns,ulcers[13,16,45,46,50]
fruitsacids,sugarsexfoliatingwrinkles[13]
quercetin,naryngenin,
kaempferol,chrysinantiinflammatorywounds,guminflammation[49,52]
carbohydrates,fruitacids,
traceelementsregenerativewounds[40,49,52,53]
Propolis
chrysinanalgesicwounds[3]
caffeicacid,quercetinantiinflammatorywounds[19,55]
pinocembrin,galangin,
caffeicacidantibacterialacne,wounds [19,57,65,66]
pinocembrin,pinobanksin,
quercetin,kaempherol,
caffeicacid,pcoumaricacid,
terpenes,
antifungaltinea,fungalinfections[19,59]
galangin,kaempferol,
quercetinantiviralinfectionofHerpessimplex
virus[62,63]
caffeicacid,pcoumaricacid,
ferulicacid,quercetin,
kaempferol
photoprotectivephotoaging[60]
phenolicacids,flavonoidsantiagingwrinkles[59]
genisteinstimulates
angiogenesisdiabeticwound[56]
Royaljelly
defensin1peptid,ferulicacidantibacterialwounds,diabeticfoot
ulcers,acne[32,67,68]
10hydroxydecanoicacid,3
10dihydroxydecanoicacid,
amino,gammaglobulin
antiinflammatoryatopicdermatitis,wounds,
hypertrophy,hyperkeratosis[67]
10hydroxytrans2decenoic
acid,10hydroxydecanoicacidantiagingwrinkles[67]
10hydroxydecanoicacid,3
10dihydroxydecanoicacid
immunomodulatory
andantiallergenic
autoimmuneand
inflammatorydiseases[70]
Beepollen
pinocembrin,apigenin,
quercetin,kaempferol,ferulic
acid,pcoumaricacid
antifungaltinea[2,24,43]
kaempferol,phenolicacidsantimicrobialburns[2,6,24,43]
phenolicacids,fattyacids,
phytosterols,kaempferol,
quercetin
antiinflammatoryatopicdermatitis,burns[2,43]
methionine,zinc,
phospholipidssebobalancingacne[43]
Molecules2020,25,55612of17
Table2.Cont.
Beeswax
squalene,10hydroxytrans2
decenoicacid,chrysinantibacterialwounds,atopicdermatitis,
psoriasis[34,36]
sterolsreducetransepidermal
waterlossatopicdermatitis[34]
Beevenom
melittinantimicrobialwounds,acne[39,81–83,92]
melittin,apaminantifungaltinea[84–86]
melittinantiviralherpessimplexinfections[84–87]
notreportedphotoprotective,
antimelanogenichiperpigmentation[44,94]
melittin,adolapinantiinflammatoryplaquepsoriasis,wounds,
atopicdermatitis[83,84,89,91,92]
phospholipaseA2pigmentationeffectvitiligo[39]
notreportedpromotehairgrowthalopecia[88]
notreportedantiwrinklewrinkles[44,94]
AuthorContributions:A.KG.designedthereview;coordinatedandparticipatedinthewritingofallsections
andwroteAbstract,Sections13,Section4.1,Section4.6andSection6andcollaboratedinthecreationofTable
1;M.G.wroteSection4.3andcreatedTables1and2andcollaboratedinthewritingofSection4.2;A.RzS.wrote
Section4.2andcollaboratedinthewritingofSection5;R.B.wroteSection4.4andSection4.5;J.S.wrotethe
Section5.Allauthorswereinvolvedintheeditingprocess.Allauthorshavereadandagreedtothepublished
versionofthemanuscript.
Funding:ThisworkwasfundedbyMEDICALUNIVERSITYOFSILESIA,KATOWICE,POLANDgrantnumber
KNW1163/N/9/O.
Acknowledgments:TheauthorsthankstoMEDICALUNIVERSITYOFSILESIA,KATOWICE,POLANDand
SILESIANACADEMYOFMEDICALSCIENCESINKATOWICEfortheirfinancialsupport.
ConflictsofInterest:Theauthorsdeclarenoconflictofinterest.
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