Surfactant
BUTOXYNOL-5 CARBOXYLIC ACID
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A butylated alkylphenol ether carboxylate surfactant. The phenol fragment is structurally tied to alkylphenol ethoxylates that EU REACH restricts due to endocrine and environmental concerns. Best avoided in modern cosmetics.
Function
Skin benefits
- Effective surfactant and emulsifier
- Useful in industrial-grade formulations
Known concerns
- Contains butylated alkylphenol fragment — potential endocrine activity
- Alkylphenol ethoxylates restricted/phased out under EU REACH
- Aquatic toxicity and persistent metabolite concerns
- Limited cosmetic safety review
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related surfactants
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.