Alanine
Alanine is anamino acid that is critical in cellular development and renewal. Derived from beans, nuts and seeds, It is used in a wide variety of cosmetics and personal care products as a skin conditioning agent, anti-static agent and masking ingredient, and as an amino acid, may combine with the epidermal cells to fill up creases, and thus provide the surface of your skin with a smoother appearance.
Alanine is FDA approved.