Valine

Valine is an amino acid relevant to protein synthesis, including collagen, which actually gives skin its structure and maintains its functional attributes. Because valine belongs to the class of amino acids considered indispensable, it cannot be synthesized by the organism and should therefore be supplied with nutrition. Collagen is a major protein that contributes to skin firmness and elasticity; due to its role in collagen synthesis, this amino acid becomes important in general for skin health.
Valine, generally, is a BCAA with many benefits for being an amino acid that produces energy, developing endurance, and repairing muscles after hard workouts. When applied topically, the exact effects of valine on the skin are less well-understood. Generally speaking, amino acids must play a role in skin hydration, encouraging migration and retention of moisture within the skin, something quite important for the healthy, hydrated look of skin.
Amino acids within skincare are truly valued for their moisturizing benefits; therefore, valine will also be expected to provide similar benefits. Since it is a key constituent in the development of proteins, added to its ability for enhancing skin hydration, valine becomes an added valuable ingredient in formulating skin care products for skin health and moisture retention.