Cosmetology - Science topic

In psoriasis candle grease sign is a confirmatory sign, in this sign we are suppose to scratch the patches of psoriasis with a sharp edge like scale or knife and if scales are collected on that and they are having greasy nature then this sign will be positive. But in my patients scales are there but they are of dry nature scales are not greasy so should I consider this as candle grease sign positive or negative? Please guide?

Recently I have been working on a research project, and the project comprises formulating an ointment, but I am clueless about how to develop one, it would be a very noble help if someone could guide me through with that.

Cosmetic products for the skin are normally emulsions to facilitate the penetration of the active ingredients. Hair growth solutions are normally water/alcohol solutions so that the product does not get the hair dirty. I'd like to know what do experts think about the possible penetration of actives on the scalp and if having wet scalp instead of dry before applying the product would be beneficial.

For how many minutes 4% hydroquinone has to be applied in the evening and morning . Do we need to wash it off after sometimes?

the choice for depeigmentation agents has been a challenge for many doctors and cosmetic companies.

has any one got any significant result with tranexamic acid?

Dear all scientists,

I am interested in the cosmetics that contain silica nanomaterial. I would like to analyse the characterisation of silica nanoforms found in the cosmetics by TEM, BET, DLS, XRD, UV-Vis and Nanosight. How to extract this nanomaterial from the cosmetics? Many thanks for any advice you would offer.

Hi, we are conducting a study at M D Anderson Cancer center addressing tobacco use in Cosmetology field students. We need articles for the same. Kindly let me know or provide me with links in case anyone here knows such studies or articles.Thank you in advance.

The European union is hearing evidence on whether the lower the amount of topical vitamin A that may be used in a cosmetic.   Vitamin A is almost completely locked in the skin because there are no transport mechanisms to take it form tissues into the blood stream so topical vitamin A can never be absorbed into the  blood and poses no risks, even at high topical doses.  We need to show that higher levels of topical vitamin A reduce skin cancers, and make skin healthy.  High doses of oral vitamin A may well reduce alzheimers.  Vitamin A in conjunction with vitamin D keeps bones healthy.  I have used 50,000 i.u. per day for 22 years and my bones are better than average for 26 year old people on scanning.  We know already that certain leukemias respond to vitamin A.    I am collecting evidence and would appreciate as much feedback as possible.

Dermarolling is done for acne scars based on severity. What is the best time interval between two sessions of dermarolling, does active acne affect the result of dermaroller, when should one decide the number of times dermarolling is to be done?

What are the parameters that are required for the stability test other than storage period and pH? Should the parameters need to measure for every intervals of period?

(1)Assessing for ECM degradation ( antielastase, anticollagenase and anti hyaluronidase)

(2) Assessing anti-tyrosinase activity (hyperpigmentation)

Other?

Will shortly methylisothiazolinone/methylchloroisothiazolinone (MI/MCI) replace nickel as the most frequent patch test positive allergen? The epidemic of allergic contact dermatitis to MI/MCI is becoming a huge problem. In 2014 MI/MCI was the second most frequent allergen in our patch test unit with 13.3% positive tests, following 14.7%  positive tests to nickel, and preceding 6.3% positive tests to cobalt, 6.3% to fragrance mix I and 4.9% to chromium.  

It is known that hadrons can be divided in baryons (fermions of three quarks) and mesons (bosons of two quarks). The sum of their electric charge is always an integer number, e.g. the proton is one and the neutron is zero. What is the reason that we have not found one particle with, say, five or seven quarks?

Natural or synthetic agents ?