Research has concentrated mostly on dermal hyaluronic acid so far, whereas epidermal HA gives very positive results. “The epidermis synthesizes four times more hyaluronic acid than the dermis,” explains Gabrielle Moro, product manager at Codif Recherche & Nature.
The Brittany-based company will present Hydranov, their new active, at In-Cosmetics Asia in Bangkok, Thailand, from October 29 to 31. Hydranov is an oligofurcellaran obtained from a red alga. It both stimulates the synthesis of epidermal hyaluronic acid and reinforces tight junctions and lipid cement. The sugar polymer possesses hygroscopic properties that maintain a hydrating film at the surface of the skin, which makes Hydranov three times more effective than hyaluronic acid.