Juliette Armand Collagen Serum is a treatment for restoring skin firmness and elasticity. The skin represents 70% collagen. When the amount of collagen is reduced, the skin loses its elasticity, ages, causing the formation of wrinkles. It is known that after the age of 25, the process of cell regeneration is slower and therefore such a treatment should be followed periodically, to ensure that the epidermis stays as bright and firm as possible for as long as possible.