Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Tetrapeptide-21 is not specifically listed in EU regulations and permitted for OTC use in the US; however, insufficient safety data is available and further assessment is recommended.
Frequently Asked Questions
Is Tetrapeptide-21 safe in cosmetics?
Tetrapeptide-21 is not specifically listed in EU regulations and permitted for OTC use in the US; however, insufficient safety data is available and further assessment is recommended. The EU classifies Tetrapeptide-21 as "permitted". Safety rating: MODERATE.
Is Tetrapeptide-21 allowed in the EU?
Tetrapeptide-21 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Tetrapeptide-21 do in cosmetics?
Tetrapeptide-21 functions as: Skin Conditioning. It is classified as a Active Ingredient in our database. CAS number: None.
What is the Margin of Safety for Tetrapeptide-21?
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
Check Tetrapeptide-21 compliance across multiple jurisdictions:
Related Ingredients
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