PENTAPEPTIDE-101 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PENTAPEPTIDE-101

Safety grade: A

This lab-created protein fragment works to help firm and smooth the skin by supporting its natural structure. It's designed to reduce the appearance of fine lines and wrinkles, making skin look more lifted and youthful. You'll typically find it in anti-aging serums and creams.

Graded using: COSING.

Last verified: June 9, 2026