NONAPEPTIDE-52 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

NONAPEPTIDE-52

Safety grade: A

A lab-created protein fragment that helps strengthen and firm the skin by supporting its natural structure. It works to reduce the appearance of fine lines and improve skin elasticity, making it a popular choice in anti-aging serums and moisturizers.

Graded using: COSING.

Last verified: June 9, 2026