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

LYSINE

Safety grade: A

Lysine is an amino acid, which is a basic building block of proteins found naturally in your body. It's used in skincare and haircare products to help strengthen and condition.

Lysine conditions and softens hair and skin while reducing static electricity, helping products feel smoother and look shinier.

Graded using: COSING, FDA.

Last verified: May 26, 2026