PENTAPEPTIDE-115 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PENTAPEPTIDE-115

Safety grade: A

A lab-created peptide made of five amino acids linked together, this ingredient is used in skincare products to help firm and smooth the skin's appearance. It works by supporting the skin's natural structure, making fine lines look less noticeable and promoting a more youthful complexion.

Graded using: COSING.

Last verified: June 9, 2026