ESTRATETRAENOL
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A steroid hormone with estrogenic activity, typically derived from animal sources, and subject to significant regulatory restrictions.
Estratetraenol (estra-1,3,5(10),6-tetraen-3-ol) is a weak estrogenic steroid. It is not listed in EU CosIng for cosmetic use and is considered a substance of concern due to its hormonal activity. Under EU Cosmetics Regulation (EC) No 1223/2009, substances with endocrine-disrupting properties are subject to restriction, and estratetraenol would require evaluation before cosmetic use. It is not permitted as a cosmetic ingredient in the EU without specific authorization.
Known concerns
- Endocrine-disrupting potential — hormonal activity
- Not authorized for cosmetic use in the EU without evaluation
- Source and purity concerns (typically animal-derived)
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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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.