What it is
Sodium tocopheryl phosphate is the sodium salt of a phosphate ester of tocopherol (vitamin E). Attaching the phosphate group makes it water-dispersible and more stable than free tocopherol, while it can convert toward active vitamin E on the skin. In sunscreens it is included as an antioxidant and conditioning ingredient to help support the skin against oxidative stress.
Safety & warnings
Generally well tolerated as a vitamin E derivative and considered non-comedogenic at typical use levels. It is not a recognized fragrance allergen.
Origin & sourcing
A semisynthetic derivative made by phosphorylating tocopherol and forming the sodium salt.
Questions everyone asks
How is this different from regular vitamin E?
The phosphate group makes it water-soluble and more stable than plain tocopherol, so it is easier to formulate into water-based products.
What role does it play in sunscreen?
It serves as an antioxidant and conditioning agent, helping support skin against oxidative stress rather than absorbing UV.