formaldehyde
High-efficiency synthetic preservative. Documented in vitro to possess endocrine-disrupting potential, mimicking estrogen. Suspected of contributing to bioaccumulation in dermal tissues.
- MicroplasticsNot flagged
- SugarsNot flagged
- Seed OilsNot flagged
- Skin
- Immune System
- Hormones / Endocrine
- FDAAllowed under maximum safety concentration thresholds
- EFSAStrictly restricted; select variants banned in leave-on baby products
PubMed References
Endocrine-disrupting properties and systemic absorption of formaldehyde(2022)
PubMed (PMID 28914602)→Last reviewed: May 2026
FAQ
Is formaldehyde bad for you?
High-efficiency synthetic preservative. Documented in vitro to possess endocrine-disrupting potential, mimicking estrogen. Suspected of contributing to bioaccumulation in dermal tissues.
What does formaldehyde do to your body?
formaldehyde primarily affects: Skin, Immune System, Hormones / Endocrine.
How often is it safe to consume formaldehyde?
Daily: Avoid — known endocrine disruptor risk. Weekly: Limit exposure to minimize bioaccumulation. Monthly: Generally tolerated.
What products contain formaldehyde?
formaldehyde is commonly found in cosmetic, household products. Use the Zeral app to scan any product and instantly see if it contains formaldehyde.
Related Ingredients
Other Cosmetic ingredients you should know about
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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.