Tannic Acid

INCI: TANNIC ACID

CAS Number
1401-55-4 (commercial); also referenced as 72401-53-7
Function
Astringent, antioxidant, skin conditioning, denaturant
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes GRAS for food use; permitted in cosmetics. EWG Skin Deep hazard score: 1 (low concern)

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

May cause mild irritation at high concentrations due to astringent/protein-precipitating properties. Hepatotoxicity concerns apply only to high-dose oral exposure, not dermal cosmetic use

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Concern Level: Moderate

Regulatory Flags

fda_food_additive jecfa_safe

Frequently Asked Questions

Is Tannic Acid safe in cosmetics?

May cause mild irritation at high concentrations due to astringent/protein-precipitating properties. Hepatotoxicity concerns apply only to high-dose oral exposure, not dermal cosmetic use The EU classifies Tannic Acid as "permitted". Safety rating: GOOD.

Is Tannic Acid allowed in the EU?

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

What does Tannic Acid do in cosmetics?

Tannic Acid functions as: Astringent, antioxidant, skin conditioning, denaturant. It is classified as a cosmetic ingredient in our database. CAS number: 1401-55-4 (commercial); also referenced as 72401-53-7.

What is the Margin of Safety for Tannic 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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