Biologique Recherche Serum Collagene OriginelA formula centered around Type 0 Collagen (active ingredient), Biologique Recherche (BR) Collagne Originel boosts the four main types of collagen (I, III, IV, VII) to redensify the skin in three dimensions. It stimulates the collagen naturally present in the skin at the gene and protein levels to reduce the length of the wrinkle and revitalize the dermal epidermal junction. It is recommended for skin with established wrinkles. Note: It is safe for