R-(S-ESCHERICHIA COLI THIOREDOXIN-1 HEPTAPEPTIDE-44 HEXAPEPTIDE-40 OLIGOPEPTIDE-165 SH-POLYPEPTIDE-122) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

R-(S-ESCHERICHIA COLI THIOREDOXIN-1 HEPTAPEPTIDE-44 HEXAPEPTIDE-40 OLIGOPEPTIDE-165 SH-POLYPEPTIDE-122)

Safety grade: A

This ingredient is a protein derived from bacteria that helps protect skin cells from damage caused by everyday stress and environmental factors. It works by supporting your skin's natural defense systems, helping to maintain a healthy, resilient complexion.

Graded using: COSING.

Last verified: June 9, 2026