Skip to content

lynestrenol

CAS 52-76-6
15

Safety score · 0–100

Avoid

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A synthetic steroid hormone (progestin) not approved for cosmetic use, with significant reproductive and endocrine toxicity concerns.

Lynestrenol is a synthetic progestogen used as an oral contraceptive and hormone replacement therapy. It is not listed in EU CosIng for cosmetic use. As a steroid hormone, it has endocrine-disrupting properties. EU Regulation 1223/2009 prohibits substances with hormonal activity from cosmetic use. H361 (reproductive toxicity) classification applies.

Known concerns

  • Not approved for cosmetic use in EU
  • Endocrine disrupting properties
  • Reproductive toxicity (H361)
  • Steroidal pharmacological activity incompatible with cosmetics

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Check your shelf

Find lynestrenol in your products.

Scan any cosmetic product with LuxSense to see if it contains lynestrenol and get a full ingredient breakdown with safety scores.

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.