What it is
Zein is the principal storage protein of corn (maize), a prolamin that is soluble in alcohol but not in water. In cosmetics it is valued as a natural film former that can leave a smooth, cohesive layer on skin or hair, and it also acts as a conditioning agent. In sunscreens it can contribute to the cosmetic feel and film of the applied product.
Safety & warnings
Zein is a corn-derived protein used in cosmetics and generally well tolerated. Because it is sourced from corn, individuals with corn-related sensitivities may wish to take note. It is not associated with notable comedogenicity at typical use levels.
Origin & sourcing
Natural; a protein extracted from corn (Zea mays), typically isolated from corn gluten.
Questions everyone asks
What is zein made from?
It is a protein extracted from corn (maize), most often from corn gluten.
Why is zein used in sunscreen?
It acts as a natural film former and conditioning agent, helping create a smooth, cohesive layer on the skin.