Tetrapeptide-5

INCI: ACETYL TETRAPEPTIDE-5

CAS Number
883220-97-1 (Tetrapeptide-5); 820959-17-9 (Acetyl Tetrapeptide-5)
Function
Humectant, moisturizing, soothing, smoothing, refreshing; anti-puffiness agent; inhibits glycosylation; increases SOD activity
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” no specific CIR review; marketed widely in OTC eye creams and serums

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Considered safe at cosmetic-use levels with no significant safety concerns.

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Concern Level: Low

Frequently Asked Questions

Is Tetrapeptide-5 safe in cosmetics?

Considered safe at cosmetic-use levels with no significant safety concerns. The EU classifies Tetrapeptide-5 as "permitted". Safety rating: GOOD.

Is Tetrapeptide-5 allowed in the EU?

Tetrapeptide-5 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Tetrapeptide-5 do in cosmetics?

Tetrapeptide-5 functions as: Humectant, moisturizing, soothing, smoothing, refreshing; anti-puffiness agent; inhibits glycosylation; increases SOD activity. It is classified as a cosmetic ingredient in our database. CAS number: 883220-97-1 (Tetrapeptide-5); 820959-17-9 (Acetyl Tetrapeptide-5).

What is the Margin of Safety for Tetrapeptide-5?

adequate 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.

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