Regulatory Status
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Safety Data
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Expert Verdict
Undecylenoyl Phenylalanine is a well-characterized skin-brightening ingredient with favorable safety profile, assessed safe as used when formulated to be non-irritating, permitted without restriction in EU and US, with multiple clinical trials confirming efficacy at 1-2% for melasma and solar lentigines.
Regulatory Flags
Frequently Asked Questions
Is Undecylenoyl Phenylalanine safe in cosmetics?
Undecylenoyl Phenylalanine is a well-characterized skin-brightening ingredient with favorable safety profile, assessed safe as used when formulated to be non-irritating, permitted without restriction in EU and US, with multiple clinical trials confirming efficacy at 1-2% for melasma and solar lentigines. The EU classifies Undecylenoyl Phenylalanine as "permitted". Safety rating: GOOD.
Is Undecylenoyl Phenylalanine allowed in the EU?
Undecylenoyl Phenylalanine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Undecylenoyl Phenylalanine do in cosmetics?
Undecylenoyl Phenylalanine functions as: Alpha-melanocyte-stimulating hormone (alpha-MSH) antagonist at MC1R receptor; inhibits melanin production upstream of tyrosinase by blocking MC1R stimulation and downstream cAMP-mediated MITF activation. It is classified as a Active Ingredient in our database. CAS number: 175357-18-3.
What is the Margin of Safety for Undecylenoyl Phenylalanine?
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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