Good Cosmetic Ingredient Sensitization Data

Potassium Ethylparaben

INCI: POTASSIUM ETHYLPARABEN

CAS Number
36457-19-9
Function
Preservative (antimicrobial)
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
EU Max Conc. 0.4%
🇺🇸 US Status permitted
US Notes Permitted preservative; FDA has not set specific concentration limits but follows GRAS-level usage; CIR Panel confirmed safety

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Sensitization Profile

Contact sensitization data for Potassium Ethylparaben 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

Short-chain paraben with weak estrogenic activity in vitro, significantly less than longer-chain parabens; considered one of the safest parabens and permitted in EU and US.

⚠️
Concern Level: Moderate

Regulatory Flags

preservative

Frequently Asked Questions

Is Potassium Ethylparaben safe in cosmetics?

Short-chain paraben with weak estrogenic activity in vitro, significantly less than longer-chain parabens; considered one of the safest parabens and permitted in EU and US. The EU classifies Potassium Ethylparaben as "permitted". Safety rating: GOOD.

Is Potassium Ethylparaben allowed in the EU?

Potassium Ethylparaben EU regulatory status: permitted. Maximum allowed concentration: 0.4%. This is based on EU Regulation 1223/2009 and its amendments.

What does Potassium Ethylparaben do in cosmetics?

Potassium Ethylparaben functions as: Preservative (antimicrobial). It is classified as a cosmetic ingredient in our database. CAS number: 36457-19-9.

What is the Margin of Safety for Potassium Ethylparaben?

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.

Compliance Tools

Check Potassium Ethylparaben compliance across multiple jurisdictions:

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Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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