Phthalates
Endocrine disruptors (plasticizers)
🟡 Several human studies point the same way, with a plausible biological mechanism, but the evidence is not yet conclusive.
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In brief
phthalates and fertility: this page reviews Phthalates (Endocrine disruptors (plasticizers)) — documented mechanism, everyday exposure situations and possible alternatives. Level of evidence: Probable.
- Where it's found
- Perfumes and eaux de toilette, hairsprays and styling sprays, nail polish, heavily fragranced creams, vinyl shower curtains.
- Suspected mechanism
- These molecules mimic or partially block the action of sex hormones; in men they are associated with lower testosterone and reduced sperm quality.
- Suggested alternative
- Choose "fragrance-free" products and reduce the number of scented cosmetics used each day. One product fewer is better than one perfect product.
- Source
- ANSES (French agency for food, environmental and occupational health safety), reports on endocrine disruptors; Human Reproduction Update reviews.
Frequently asked questions
Phthalates: how is it linked to infertility?
These molecules mimic or partially block the action of sex hormones; in men they are associated with lower testosterone and reduced sperm quality.
Where is Phthalates found in everyday life?
Perfumes and eaux de toilette, hairsprays and styling sprays, nail polish, heavily fragranced creams, vinyl shower curtains.
How can exposure to Phthalates be reduced?
Choose "fragrance-free" products and reduce the number of scented cosmetics used each day. One product fewer is better than one perfect product.
What is the level of evidence for Phthalates?
Probable. Several human studies point the same way, with a plausible biological mechanism, but the evidence is not yet conclusive.
Map your everyday exposures in about ten minutes.
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Related factors
Including a factor does not mean it causes infertility: it is simply worth monitoring, depending on its level of evidence.
Content last updated: September 14, 2026