Androsta-1,4,9(11)-triene-3,17-dione
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An anabolic steroid precursor (androstadienedione) used as a prohormone supplement, banned from cosmetics due to hormonal activity and endocrine disruption.
This compound is an anabolic steroid precursor (androstadienedione) with hormonal activity similar to testosterone precursors. It carries H361f (suspected reproductive toxicity) hazard statement. Anabolic steroid precursors are prohibited in cosmetic products under EU Regulation 1223/2009 Annex II due to their endocrine-disrupting properties and potential for hormonal imbalance with topical use.
Known concerns
- Anabolic steroid precursor
- Endocrine disruption potential
- Suspected reproductive toxicity (H361f)
- EU cosmetics prohibition
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.