PENTAPEPTIDE-100 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PENTAPEPTIDE-100

Safety grade: A

A lab-created protein fragment made of five amino acids linked together, this ingredient is used in skincare products to help smooth the appearance of fine lines and improve skin texture. It works by supporting the skin's natural firmness and elasticity.

Graded using: COSING.

Last verified: June 9, 2026