TETRAPEPTIDE-122 METHYL PHENYLALANINE AMIDE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

TETRAPEPTIDE-122 METHYL PHENYLALANINE AMIDE

Safety grade: A

A lab-created peptide (protein fragment) that works to support skin firmness and elasticity. It helps strengthen the skin's natural structure, making it useful in anti-aging and lifting products to help improve skin texture and reduce the appearance of fine lines.

Graded using: COSING.

Last verified: June 9, 2026