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Butylparaben
AKA “Butyl 4-hydroxybenzoate, Butyl paraben, Butyl p-hydroxybenzoate, Butoben, Nipabutyl, Butyl chemosept, Butyl parasept, Tegosept B”
Ingredient Facts
Butylparaben
AKA: Butyl 4-hydroxybenzoate, Butyl paraben, Butyl p-hydroxybenzoate, Butoben, Nipabutyl, Butyl chemosept, Butyl parasept, Tegosept B
Synthetic · Antimicrobial · EWG: 9
Synthetic
Preservative
Not Clean
A synthetic preservative that keeps formulas fresh and prevents bacterial growth, helping extend product shelf life.
Effective at 0.03%
Formula
C11H14O3
Mol. Weight
194.23
CAS #
94-26-8
See origin →
Functions
Preservative
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Antimicrobial
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Prevents microbial growth
Provides scent
Traditional Use
Insufficient information provided to describe traditional or historical use.
Melanin-Rich Skin
Suitable
EWG
9
CIR
Insufficient
Pregnancy
—
CIR Safety Findings
ewg-9
medical-approval
Phototoxicity Concern
Concentration Guide
1.2e-05%
0.062%
0.14%
0%2%
Effective Range
Reg. Limit
EU/SCCS limit: 0.14% in oral, children. Opinion: SCCS/1674/25 | CIR reported use: 0.000012-0.062
Regulatory Status
USAunder review
EU✔ permitted
JAPAN✔ permitted
CANADA✔ permitted
🧂Conflict of interest.
Final amended report on the safety assessment of Methylparaben, Ethylparaben, Propylparaben, Isopropylparaben, Butylparaben, Isobutylparaben, and Benz
International journal of toxicology, 2008
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Final amended report on the safety assessment of Methylparaben, Ethylparaben, Propylparaben, Isopropylparaben, Butylparaben, Isobutylparaben, and Benz
International journal of toxicology, 2008
→
Final amended report on the safety assessment of Methylparaben, Ethylparaben, Propylparaben, Isopropylparaben, Butylparaben, Isobutylparaben, and Benz
International journal of toxicology, 2008
→
Final Amended Report on the Safety Assessment of Methylparaben, Ethylparaben, Propylparaben, Isopropylparaben, Butylparaben, Isobutylparaben and Benzylparaben as used in cosmetic products
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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Final Report on the Safety Assessment of Isobutylparaben and Isopropylparaben
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Methylparaben, Ethylparaben, Propylparaben, and Butylparaben
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Butylparaben
European Commission
EU Cosmetic Ingredient Database (CosIng)
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Isobutylparaben
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Potassium Butylparaben
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Sodium Butylparaben
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Sodium Isobutylparaben
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Butylparaben
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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Isobutylparaben
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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High-dose exposure to butylparaben impairs thyroid ultrastructure and function in rats.
Jiang QL, Li S, Zeng Y, Zhang BT, Cao Y et al.
Scientific reports, 2024
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Combined effect of silver nanoparticles and aluminium chloride, butylparaben or diethylphthalate on the malignancy of MDA-MB-231 breast cancer cells a
Roszak J, Smok-Pieniążek A, Jeżak K, Domeradzka-Gajda K, Grobelny J et al.
Toxicology in vitro : an international journal published in association with BIBRA, 2020
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Verified Feb 2026 · 🧪 = conflict
Data: PubChem · CosIng · EWG · CIR