ZEIN is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

ZEIN

Corn Protein

Safety grade: A

Zein is a natural protein extracted from corn that forms a protective layer on skin and hair. It comes from the corn kernel and has been used in cosmetics for decades.

Zein creates a breathable film on the skin and hair surface that helps lock in moisture, improve texture, and provide a smooth, conditioned feel while enhancing product performance.

Graded using: COSING, FDA.

Last verified: May 26, 2026