Prohibited hormone
altrenogest
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A synthetic progestin used in veterinary medicine and banned from cosmetics. Hormones absorb through skin and disrupt the endocrine system, so they have no place in personal care products.
Skin benefits
- Recognised veterinary progestin used to manage equine reproductive cycles
- Well-characterised in animal endocrinology research
Known concerns
- Synthetic progestin hormone, prohibited in EU cosmetics
- Endocrine-disrupting activity even at low transdermal exposures
- No legitimate cosmetic application
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, so always read the physical product label and consult a healthcare professional for personal concerns.