Benzophenone-9

INCI: BENZOPHENONE-9

CAS Number
3121-60-6
Function
UV absorber, light stabilizer
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not an OTC sunscreen active; CIR concluded safe (originally 1983, reaffirmed 2021)

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Prohibited in EU but permitted in US; CIR safety assessment confirmed non-mutagenic and non-genotoxic.

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Concern Level: Low

Frequently Asked Questions

Is Benzophenone-9 safe in cosmetics?

Prohibited in EU but permitted in US; CIR safety assessment confirmed non-mutagenic and non-genotoxic. The EU classifies Benzophenone-9 as "prohibited". Safety rating: GOOD.

Is Benzophenone-9 allowed in the EU?

Benzophenone-9 EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Benzophenone-9 do in cosmetics?

Benzophenone-9 functions as: UV absorber, light stabilizer. It is classified as a cosmetic ingredient in our database. CAS number: 3121-60-6.

What is the Margin of Safety for Benzophenone-9?

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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