ANTI-AGEING With age, negative expressions have a tendency to become set as the skin loses its elasticity, and positive expressions lose their structure as the skin starts to sag. While crow's feet are considered as being smile wrinkles, forehead lines on the other hand harden the gaze. Deeper and deeper, nasal furrows with the appearance of circumoral wrinkles indicate bitterness. In young ... [Show full abstract] women, high cheekbones and a tapering chin form what is called a triangle of beauty. In older women, forehead lines and nasal furrows delineate an inverse triangle of beauty (Fig. 1). Natural ageing of the skin is the result of a slow, progressive and genetically determined process. With age, the genes that code for the synthesis of the dermal structural molecules – elastin, collagen and hyaluronic acid – enter a 'sleeping phase'. The dermal matrix loses its structure and the skin loses its firmness, fixing in long term lines and accentuating wrinkles. To fight this genetically programmed inversion of the triangle of beauty, Codif Recherche et Nature has developed an extract of fertile bases of Undaria pinnatifida called Matrigenics.14 G. This new active ingredient is rich in wakamic ester. Its activity is to reactivate genes that have gone to sleep. Undaria pinnatifida Undaria pinnatifida, also called wakame, is a brown macro-alga from Asia where it is grown on ropes and then eaten. It has been introduced into a large number of areas all around the world, either by ships or with Japanese oyster spat. Codif Recherche et Nature cultivates wakame in a protected area of the Rance estuary (Brittany – France) on a system of submerged ropes.