Moderate Cosmetic Ingredient Sensitization Data

Potassium Butylparaben

INCI: POTASSIUM BUTYLPARABEN

CAS Number
38566-94-8
Function
Preservative
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
EU Max Conc. 0.14%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; CIR reviewed butylparaben as safe in current cosmetic practices

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Sensitization Profile

Contact sensitization data for Potassium Butylparaben based on clinical patch test studies and IFRA standards.

Sensitization Rate
low
Allergen Class
preservative
EU Allergen Listed
no
Patch Test Positive Rate
0.1%
Cross-reactivity Group
paraben-group
Reaction Type
contact-dermatitis

Source: ESSCA; IVDK; SCCS/1348/10

Expert Verdict

Endocrine disrupting potential with estrogenic activity; strict concentration cap applies; excluded from children's diaper-area products; must convert salt form to acid equivalent for compliance and document in PIF.

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Concern Level: Moderate

Regulatory Flags

preservative

Frequently Asked Questions

Is Potassium Butylparaben safe in cosmetics?

Endocrine disrupting potential with estrogenic activity; strict concentration cap applies; excluded from children's diaper-area products; must convert salt form to acid equivalent for compliance and document in PIF. The EU classifies Potassium Butylparaben as "restricted". Safety rating: MODERATE.

Is Potassium Butylparaben allowed in the EU?

Potassium Butylparaben EU regulatory status: restricted. Maximum allowed concentration: 0.14%. This is based on EU Regulation 1223/2009 and its amendments.

What does Potassium Butylparaben do in cosmetics?

Potassium Butylparaben functions as: Preservative. It is classified as a cosmetic ingredient in our database. CAS number: 38566-94-8.

What is the Margin of Safety for Potassium Butylparaben?

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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