TETRAPEPTIDE-61 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

TETRAPEPTIDE-61

Safety grade: A

This advanced protein fragment works to support your skin's natural firmness and elasticity by helping strengthen the underlying structure. Derived from amino acids, it's designed to help reduce the appearance of fine lines and keep skin looking more lifted and youthful over time.

Graded using: COSING.

Last verified: June 9, 2026