Regulatory Status
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Safety Data
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Expert Verdict
Generally considered low-risk as a synthetic tripeptide; limited published independent toxicological data; potential for peptide-related sensitivity at high concentrations is theoretically low. Composed of cysteine, glutamic acid, and glycine - structurally related to glutathione (a grandfathered INCI name for the same amino acid sequence). The "cysteinyl" prefix indicates an N-terminal cysteine modification. Functions as a mimetic of the endogenous antioxidant glutathione, supporting skin re...
Frequently Asked Questions
Is Cysteinyl Tripeptide-35 safe in cosmetics?
Generally considered low-risk as a synthetic tripeptide; limited published independent toxicological data; potential for peptide-related sensitivity at high concentrations is theoretically low. Composed of cysteine, glutamic acid, and glycine - structurally related to glutathione (a grandfathered INCI name for the same amino acid sequence). The "cysteinyl" prefix indicates an N-terminal cysteine modification. Functions as a mimetic of the endogenous antioxidant glutathione, supporting skin re... The EU classifies Cysteinyl Tripeptide-35 as "permitted". Safety rating: MODERATE.
Is Cysteinyl Tripeptide-35 allowed in the EU?
Cysteinyl Tripeptide-35 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Cysteinyl Tripeptide-35 do in cosmetics?
Cysteinyl Tripeptide-35 functions as: Chelating Agent, Skin Protecting, Antiseborrhoeic (controls sebum production), Antioxidant. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (synthetic peptide).
What is the Margin of Safety for Cysteinyl Tripeptide-35?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
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Related Ingredients
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