TETRAPEPTIDE-22 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

TETRAPEPTIDE-22

Safety grade: A

Tetrapeptide-22 is a small protein fragment made up of four amino acids linked together. It's designed to help improve skin texture and keep skin feeling soft and smooth.

This ingredient conditions the skin by helping to improve its texture, firmness, and overall appearance while maintaining moisture and elasticity.

Graded using: COSING.

Last verified: May 26, 2026