TETRAPEPTIDE-47 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

TETRAPEPTIDE-47

Safety grade: A

A lab-made protein fragment designed to help reduce the appearance of fine lines and wrinkles by supporting skin firmness. It works by signaling skin cells to maintain their structure and elasticity, potentially making skin look smoother and more youthful over time.

Graded using: COSING.

Last verified: June 9, 2026