cyclopentasiloxane
Occlusive petroleum or silicone derivative. Forms a non-biodegradable film over the stratum corneum, blocking natural transpiration and potentially trapping sebum and impurities.
- MicroplasticsNot flagged
- SugarsNot flagged
- Seed OilsNot flagged
- Skin
- Immune System
- FDAAllowed in cosmetic formulations; concentration limits apply
- EFSAApproved up to restricted limits; flagged for dermal irritation
PubMed References
Dermal occlusion and comedogenicity profile of synthetic cyclopentasiloxane(2022)
PubMed (PMID 31298461)→Last reviewed: May 2026
FAQ
Is cyclopentasiloxane bad for you?
Occlusive petroleum or silicone derivative. Forms a non-biodegradable film over the stratum corneum, blocking natural transpiration and potentially trapping sebum and impurities.
What does cyclopentasiloxane do to your body?
cyclopentasiloxane primarily affects: Skin, Immune System.
How often is it safe to consume cyclopentasiloxane?
Daily: Avoid in daily leave-on facial products. Weekly: Acceptable in rinse-off hair/body formulas. Monthly: Generally tolerated.
What products contain cyclopentasiloxane?
cyclopentasiloxane is commonly found in cosmetic products. Use the Zeral app to scan any product and instantly see if it contains cyclopentasiloxane.
Related Ingredients
Other Cosmetic ingredients you should know about
Found cyclopentasiloxane on a label?Scan it in 10 seconds.
Avoid looking up compound chemistry manually. Point your camera at any label — Zeral parses ingredients, matches PubMed studies, and scores them against your specific profile.
iOS & Android · Ad-free · Free to start
Medical Disclaimer: The information on this page is compiled from peer-reviewed scientific studies and regulatory reports. It is intended for general awareness and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.