Linseed Acid

INCI: LINSEED ACID

CAS Number
68424-45-3
Function
Cleansing, Skin Conditioning (Emollient), Surfactant-Cleansing, Surfactant-Emulsifying
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - no prohibition or restriction

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Generally safe; high unsaturation (alpha-linolenic acid content) makes it prone to rapid oxidation and rancidity without proper antioxidant protection. Potential for mild irritation at high concentrations as with most fatty acid surfactants. Fatty acid mixture derived from flax (Linum usitatissimum) seed oil; plant origin. Rich in alpha-linolenic acid (C18:3). Can carry biodegradable, organic, and Ulta Conscious Beauty labeling claims. Functions both as a surfactant and emollient depending on...

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Concern Level: Moderate

Regulatory Flags

ifra_fragrance

Frequently Asked Questions

Is Linseed Acid safe in cosmetics?

Generally safe; high unsaturation (alpha-linolenic acid content) makes it prone to rapid oxidation and rancidity without proper antioxidant protection. Potential for mild irritation at high concentrations as with most fatty acid surfactants. Fatty acid mixture derived from flax (Linum usitatissimum) seed oil; plant origin. Rich in alpha-linolenic acid (C18:3). Can carry biodegradable, organic, and Ulta Conscious Beauty labeling claims. Functions both as a surfactant and emollient depending on... The EU classifies Linseed Acid as "permitted". Safety rating: MODERATE.

Is Linseed Acid allowed in the EU?

Linseed Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Linseed Acid do in cosmetics?

Linseed Acid functions as: Cleansing, Skin Conditioning (Emollient), Surfactant-Cleansing, Surfactant-Emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: 68424-45-3.

What is the Margin of Safety for Linseed Acid?

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.

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