Caffeic Acid

INCI: CAFFEIC ACID

CAS Number
331-39-5
Function
antioxidant, masking
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Naturally occurring hydroxycinnamic acid found in plants; GRAS-adjacent; no FDA restriction for cosmetic use. Broad antioxidant and UV-absorbing activity.

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Caffeic acid is a naturally occurring antioxidant permitted for cosmetic use with low safety concern at typical concentrations.

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Concern Level: Low

Regulatory Flags

prop65

Frequently Asked Questions

Is Caffeic Acid safe in cosmetics?

Caffeic acid is a naturally occurring antioxidant permitted for cosmetic use with low safety concern at typical concentrations. The EU classifies Caffeic Acid as "permitted". Safety rating: GOOD.

Is Caffeic Acid allowed in the EU?

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

What does Caffeic Acid do in cosmetics?

Caffeic Acid functions as: antioxidant, masking. It is classified as a cosmetic ingredient in our database. CAS number: 331-39-5.

What is the Margin of Safety for Caffeic 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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