TETRAPEPTIDE-65 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

TETRAPEPTIDE-65

Safety grade: A

A lab-created protein fragment that helps strengthen and firm skin by boosting its natural support structure. It works to reduce the appearance of fine lines and improve skin elasticity, making it a common addition to anti-aging creams and serums.

Graded using: COSING.

Last verified: June 9, 2026