Pyrogallol

INCI: PYROGALLOL [^1_9]

Pyrogallol (CAS 87-66-1 [^1_8][^1_3]) is a cosmetic cosmetic ingredient functioning as Hair Dyeing agent (historical); Antioxidant / Reducing agent [^1_8]. EU Regulation 1223/2009 status: prohibited. Industrial safety data is also available in the chemical safety database.

View industrial chemical safety profile for CAS 87-66-1 [^1_8][^1_3] →

CAS Number
87-66-1 [^1_8][^1_3]
View industrial chemical safety profile →
Function
Hair Dyeing agent (historical); Antioxidant / Reducing agent [^1_8]
Editorial assessment
POOR
Preliminary editorial note — not a computed safety verdict.

Regulatory Status

EU EU Status prohibited
US US Status permitted
US Notes VCRP reports only 1 use (2023) in "other hair coloring." CIR originally concluded "safe" (1991) but re-review opened 2024 due to NTP carcinogenicity data [^1_8]

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

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Pyrogallol.

Calculate MoS for your specific formulation with the MoS Calculator.

Editorial summary

Preliminary editorial summary for Pyrogallol — not a computed safety verdict. See the sourced toxicological data above.

Regulatory Flags

potential-allergen eu_banned_cosmetics eu_cosing_listed

Frequently Asked Questions

Is Pyrogallol safe in cosmetics?

Pyrogallol has a safety rating of "POOR" in our database. EU status: prohibited. US status: permitted.

Is Pyrogallol allowed in the EU?

Pyrogallol EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Pyrogallol do in cosmetics?

Pyrogallol functions as: Hair Dyeing agent (historical); Antioxidant / Reducing agent [^1_8]. It is classified as a cosmetic ingredient in our database. CAS number: 87-66-1 [^1_8][^1_3].

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