[EN] USES OF HYDROPHOBICALLY-MODIFIED HYALURONIC ACID THROUGH AMIDE AND/OR HYDRAZIDE LINKAGES IN COSMETICS AND/OR DERMATOLOGY<br/>[FR] UTILISATIONS D'ACIDE HYALURONIQUE MODIFIÉ DE MANIÈRE HYDROPHOBE PAR DES LIAISONS AMIDE ET/OU HYDRAZIDE EN COSMÉTIQUE ET/OU EN DERMATOLOGIE
申请人:BIOKAWTHAR TECH
公开号:WO2018024902A1
公开(公告)日:2018-02-08
The present invention relates to the field of cosmetics and pharmaceuticals such as dermatology. Especially, the present invention relates to particles made of hyaluronic acid modified by amidation with hydrophobic groups having an amine or a hydrazine function having general formula (I), wherein Z, R and n are as defined in the claims. In particular, the particles of the invention are useful for restoring the endogenic production of hyaluronic acid and provide a lasting effect thanks to their slow degradation in vivo. The present invention also refers to a cosmetic care method comprising applying the particles of the invention on the skin of a subject in need thereof.