SR-(SH-POLYPEPTIDE-140 SH-POLYPEPTIDE-141 SH-POLYPEPTIDE-142) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(SH-POLYPEPTIDE-140 SH-POLYPEPTIDE-141 SH-POLYPEPTIDE-142)

Safety grade: A

This is a blend of protein compounds derived from natural sources that work to strengthen and protect your skin's outer layer. These peptides help improve skin firmness and elasticity while supporting the skin's natural barrier function, making products feel smoother and more hydrating.

Graded using: COSING.

Last verified: June 9, 2026