TETRAPEPTIDE-98 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

TETRAPEPTIDE-98

Safety grade: A

A laboratory-created protein fragment that works to strengthen and firm skin by supporting its natural structure. This ingredient helps reduce the appearance of fine lines and sagging by boosting the skin's ability to maintain elasticity and smoothness over time.

Graded using: COSING.

Last verified: June 9, 2026