Butylparaben
AKA “Butyl 4-hydroxybenzoate, 94-26-8, Butyl paraben, Butyl p-hydroxybenzoate, Butoben, Nipabutyl, Butyl chemosept, Butyl parasept, Tegosept B”
Preservative
Ingredient Facts
Butylparaben
AKA: Butyl 4-hydroxybenzoate, 94-26-8, Butyl paraben, Butyl p-hydroxybenzoate, Butoben, Nipabutyl, Butyl chemosept, Butyl parasept, Tegosept B
Preservative · Preservative · EWG: 9
Synthetic
Preservative
Not Clean
Butylparaben is a preservative and flavouring agent. Butylparaben has been shown to exhibit anti-microbial function Butylparaben belongs to the family of Hydroxybenzoic Acid Derivatives. These are compounds containing an hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxylic acid. (A3205).
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.
Prevents microbial growth
Provides scent
Traditional Use
Insufficient information provided to describe traditional or historical use.
Skin Types
EWG
9
CIR
Safe as used
Pregnancy
—
Restricted By
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 Agencies
🧂Conflict of interest.
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 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
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)
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
Isobutylparaben
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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
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
Verified Jun 2026 · 🧪 = conflict
Data: PubChem · CosIng · EWG · CIR