Collagène Originel – Sérum Authentique (8ml)A true innovation resulting from scientific research, the Collagne Originel serum acts on the 4 main types of collagen to redensify the skin in 3 dimensions. A unique combination of 4 active ingredients, it promotes the production of types I and III collagen, the most abundant in the skin, and types IV and VII to improve the appearance of the dermal epidermal junction. It thus significantly reduces the length of wrinkles.