Parabens
CAS 99-76-3 · C₈H₈O₃ · methylparaben · propylparaben · butylparaben
Synthetic preservatives that mimic estrogen and have been detected in breast tissue. Widely used but increasingly replaced by brands.
Concerns
- Estrogen mimicry linked to breast cancer risk [inference]
- Detected in breast tumor tissue (Darbre et al. 2004)
- Reproductive toxicity in animal studies
- EU has banned propyl- and butylparaben in products for children under 3
Regulatory flags
- ⚑EU restricted propyl/butylparaben in cosmetics for children under 3 (2014)
- ⚑EU max 0.19% for propyl/butylparaben in leave-on products
Commonly found in
Safer swaps we'd look at
Based Bodyworks
BASED Body Wash
Sulfate-free, fragrance-free body wash with no hormone-disrupting ingredients.
Why it's cleaner
No flagged ingredients in our current review; key ingredients include Coco glucoside, Aloe vera, Glycerin.
Sources & references
Last researched: April 18, 2026
Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.
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