Brand from Japan: Dr.Itsuko. Collagen is a protein found in the stratum corneum and dermis of the skin, hair and nails, cartilage, bones, muscles, blood vessels and internal organs, and is used in many cosmetic products because of its role in holding cells together, providing elasticity and flexibility, improving skin elasticity and retaining moisture.Pure Collagen is a highly purified collagen serum. High quality collagen improves skin firmness and elasticity and prevents dryness and fine lines and wrinkles. The ideal texture and moisturising power can be achieved by adding the desired amount to your lotion. Highly moisturising and effective in improving skin texture, Pure Collagen leads to bright, radiant and beautiful skin.The use of naturally derived ingredients makes it gentle on the skin and free from irritation and problems. By incorporating it into your daily skincare routine, it maintains skin health and brings out its beauty.