Is Hexadecenoic Acid safe in cosmetics?
Hexadecenoic Acid has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.
EXCELLENT
Cosmetic Ingredient
Hexadecenoic Acid
INCI: HEXADECENOIC ACID
Hexadecenoic Acid (CAS 373-49-9 (cis-9-hexadecenoic / palmitoleic acid); other positional isomers exist (e.g., 2091-29-4)) is a cosmetic cosmetic ingredient functioning as Emollient, skin-conditioning agent, surfactant, cleansing. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
CAS Number
373-49-9 (cis-9-hexadecenoic / palmitoleic acid); other positional isomers exist (e.g., 2091-29-4)
View industrial chemical safety profile →
Function
Emollient, skin-conditioning agent, surfactant, cleansing
Editorial assessment
EXCELLENT
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — no specific CFR restriction; naturally occurring fatty acid
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Hexadecenoic Acid.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Hexadecenoic Acid — not a computed safety verdict. See the sourced toxicological data above.
Frequently Asked Questions
Is Hexadecenoic Acid allowed in the EU?
Hexadecenoic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Hexadecenoic Acid do in cosmetics?
Hexadecenoic Acid functions as: Emollient, skin-conditioning agent, surfactant, cleansing. It is classified as a cosmetic ingredient in our database. CAS number: 373-49-9 (cis-9-hexadecenoic / palmitoleic acid); other positional isomers exist (e.g., 2091-29-4).
Compliance Tools
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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