Henna

INCI: HENNA (LAWSONIA INERMIS)

Henna (CAS 83-72-7 (lawsone / 2-hydroxy-1,4-naphthoquinone); 84988-66-9 (plant extract)) is a cosmetic cosmetic ingredient functioning as Hair dyeing, skin conditioning, bulking. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database.

View industrial chemical safety profile for CAS 83-72-7 (lawsone / 2-hydroxy-1,4-naphthoquinone); 84988-66-9 (plant extract) →

Auto-generated CPSR Part A draft with source citations
CAS Number
83-72-7 (lawsone / 2-hydroxy-1,4-naphthoquinone); 84988-66-9 (plant extract)
View industrial chemical safety profile →
Function
Hair dyeing, skin conditioning, bulking
Safety Rating
MODERATE

Regulatory Status

EU EU Status restricted
US US Status restricted
US Notes Restricted under 21 CFR 73.2190: permitted only for hair dyeing; FDA does not approve henna for direct skin application (e.g., mehndi body art)

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Additional Ingredient Properties

1 property record from structured ingredient metadata.

ecotoxicity
{"biodegradable": "yes", "biodegradation_days": "28-60", "bioaccumulative": "no", "aquatic_toxicity_level": "low", "coral_reef_safe": "yes", "marine_toxicity": "very low toxicity", "freshwater_toxicity": "minimal impact", "endocrine_disruptor": "no", "persistent_organic_pollutant": "no", "microplastic": "no", "nano_particle": "no", "hawaii_banned": "no", "eu_restricted_environmental": "no", "palm_…

Expert Verdict

Expert safety assessment and concern-level summary for Henna.

Frequently Asked Questions

Is Henna safe in cosmetics?

Henna has a safety rating of "MODERATE" in our database. EU status: restricted. US status: restricted.

Is Henna allowed in the EU?

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

What does Henna do in cosmetics?

Henna functions as: Hair dyeing, skin conditioning, bulking. It is classified as a cosmetic ingredient in our database. CAS number: 83-72-7 (lawsone / 2-hydroxy-1,4-naphthoquinone); 84988-66-9 (plant extract).

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