Styrax Tonkinensis Resin Extract

INCI: STYRAX TONKINENSIS RESIN EXTRACT

CAS Number
9000-72-0 / 84012-39-5 (shared with Siam benzoin)
Function
Perfuming, Skin Conditioning
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted for cosmetic use; Siam benzoin has GRAS status for food — cosmetic use not separately restricted

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Strong sensitization history. Coniferyl benzoate content varies by source. IFRA restricts use levels. Must declare specific allergens per EU when above thresholds

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Concern Level: Moderate

Regulatory Flags

plant-extract potential-allergen fragrance-component

Frequently Asked Questions

Is Styrax Tonkinensis Resin Extract safe in cosmetics?

Strong sensitization history. Coniferyl benzoate content varies by source. IFRA restricts use levels. Must declare specific allergens per EU when above thresholds The EU classifies Styrax Tonkinensis Resin Extract as "permitted". Safety rating: MODERATE.

Is Styrax Tonkinensis Resin Extract allowed in the EU?

Styrax Tonkinensis Resin Extract EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Styrax Tonkinensis Resin Extract do in cosmetics?

Styrax Tonkinensis Resin Extract functions as: Perfuming, Skin Conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 9000-72-0 / 84012-39-5 (shared with Siam benzoin).

What is the Margin of Safety for Styrax Tonkinensis Resin Extract?

adequate 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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