Poor Cosmetic Ingredient NOAEL Data

Sodium o-Phenylphenate

INCI: SODIUM O-PHENYLPHENATE (SODIUM 2-BIPHENYLOLATE)

CAS Number
132-27-4
Function
Preservative
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
EU Max Conc. 0.2%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Historically permitted as preservative; EPA-registered biocide; under regulatory scrutiny

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

6 study endpoints found for Sodium o-Phenylphenate. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL >=300 mg/kg bw/day oral dog oral REACH
NOAEL >=1000 mg/kg bw/day dermal rat dermal REACH
NOAEL >=1000 mg/kg bw/day dermal - dermal REACH
NOAEL 39 mg/kg bw/day oral rat oral REACH
NOAEL >=300 mg/kg bw/day oral - oral REACH
NOAEL 39 mg/kg bw/day oral - oral REACH

Expert Verdict

๐Ÿšจ HIGH ALERT: RAC proposed Carcinogen Category 2 classification (Dec 2022); OPP salts already removed from EU authorized preservative list; SCCS published final opinion; Article 15(1) Cosmetics Regulation triggers prohibition for Cat. 2 CMR substances unless SCCS finds safe

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Concern Level: High

Regulatory Flags

preservative prop65

Frequently Asked Questions

Is Sodium o-Phenylphenate safe in cosmetics?

๐Ÿšจ HIGH ALERT: RAC proposed Carcinogen Category 2 classification (Dec 2022); OPP salts already removed from EU authorized preservative list; SCCS published final opinion; Article 15(1) Cosmetics Regulation triggers prohibition for Cat. 2 CMR substances unless SCCS finds safe The EU classifies Sodium o-Phenylphenate as "permitted". Safety rating: POOR. 6 toxicological study endpoint(s) are available in our database.

Is Sodium o-Phenylphenate allowed in the EU?

Sodium o-Phenylphenate EU regulatory status: permitted. Maximum allowed concentration: 0.2%. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium o-Phenylphenate do in cosmetics?

Sodium o-Phenylphenate functions as: Preservative. It is classified as a cosmetic ingredient in our database. CAS number: 132-27-4.

What is the Margin of Safety for Sodium o-Phenylphenate?

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.

What is the NOAEL for Sodium o-Phenylphenate?

The NOAEL (No Observed Adverse Effect Level) for Sodium o-Phenylphenate is >=300 mg/kg bw/day based on a oral study via oral route in dog. A total of 6 study endpoints are available. Source: REACH.

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