What it is
Benzotriazolyl dodecyl p-cresol is a benzotriazole derivative used at low levels to help protect cosmetic formulations from light-induced degradation. In sunscreens it can help maintain the stability of the formula and its components on exposure to light. It functions as a formulation stabilizer rather than as a UV filter that protects the skin.
Safety & warnings
Used at the low levels typical of formulation stabilizers, it is generally well tolerated. It is not a recognized fragrance allergen.
Origin & sourcing
Synthetic; a benzotriazole-derived compound.
Questions everyone asks
Is benzotriazolyl dodecyl p-cresol a sunscreen filter?
No, it is a formulation stabilizer that helps protect the product from light-induced degradation, not a UV filter that protects the skin.
Why is it used in sunscreens?
It helps keep the formula and its ingredients stable on exposure to light, supporting the product's shelf stability.