Does Aluminum salts cause infertility?

Not studied. The exposure is real and common, but no serious study has measured its effect on human fertility. It remains unknown. Skin absorption is low but real; no solid study has measured an effect on human fertility. The question remains open.

Aluminum salts

Antiperspirants

Evidence level : Not studied BathroomMechanism : Hormonal disruption burden

🔴 The exposure is real and common, but no serious study has measured its effect on human fertility. It remains unknown.

Where it's found: Antiperspirant deodorants, some toothpastes and full-coverage cosmetics.
Suspected mechanism: Skin absorption is low but real; no solid study has measured an effect on human fertility. The question remains open.
Suggested alternative: Alternate with an aluminum-free deodorant, especially right after shaving.
Source: ANSES 2011, opinion on aluminum in cosmetics.

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Related factors

PhthalatesEndocrine disruptors (plasticizers)
Perfume and eau de toilette (repeated exposure)Synthetic fragrance — mixture of substances
ParabensCosmetic preservatives

Including a factor does not mean it causes infertility: it is simply worth monitoring, depending on its level of evidence.

Back to all sheets Understand the evidence levels

Content last updated: September 14, 2026