Valine
Irritancy: unknownComedogenicity: unknownMasking
The details
Valine is one of the essential amino acids (meaning your body can't make it on its own and has to get it from food). In skincare, it's usually synthetically-made or pulled from plant proteins like soy. It's one of the small building blocks that make up your skin's natural moisturizing factor (NMF), or the built-in system that helps skin hold onto water. So its main job in a formula is to give the skin gentle hydration and help it feel more comfortable. Typical amounts are very tiny: roughly 0.00004%-0.5% in leave on products and up to 1% in rinse-off ones. The Cosmetic Ingredient Review panel has looked at this ingredient and found no evidence of it being a skin irritant or allergen at cosmetic levels.
Found in (2 products)
Also listed as
valine