Don’t take our word for it. Here’s every fact on this site, with its evidence grade, its caveats, and a link to the source, so you can check us.
We start you on the strong ones: findings that have been replicated or come from one large, well-controlled study. Moderate and weak facts are here too, labeled for what they are. Use “Link to this fact” to share a single card.
Hidden ingredients / Other evidence
Men who used deodorant in the past 24 hours had about 74% higher urinary MEP, almost as much as cologne users (83%), though the study did not test what the deodorants contained.
Weak evidence: Single-product model; deodorant use may mark other fragranced products and no product contents were measured.
Source: Nassan 2017, Environmental Health Perspectives Link to this fact
Hidden ingredients / Other evidence
In the Mexican study, DEHP metabolites were higher among body lotion and deodorant users, but the differences largely disappeared among women who did not drink bottled water, so cosmetic and packaging routes could not be separated.
Weak evidence: DEHP is not a fragrance ingredient; do not turn this into a fragrance claim. Multiple comparisons and low power acknowledged by the authors.
Source: Romero-Franco 2011, Environment International Link to this fact
Information, not medical advice. See also: myths we won’t tell you.