@oasis.app: Screening for heavy metals, phthalates, residual solvents, and glyphosate. Lead turned up in nearly every product tested. Cadmium was detected in three, all labeled conventional rather than organic-cotton. Every conventional-labeled product in Oasis’s panel exceeded that study’s published geometric mean lead concentration of 120 nanograms per gram; every organic-cotton-labeled product fell below it. “While the results of our testing do not suggest clinically meaningful heavy metals toxicity, some users may wish to avoid incremental contact with certain heavy metals or are interested in the ability to reduce their exposure more broadly,” said Dr. Jacob M. Hands, MD, Oasis’s medical reviewer. Between 52% and 86% of people who menstruate in the United States use tampons, according to the underlying research this report builds on. Because tampons are used internally for hours at a time, questions about what they’re made of, and what might leach out during use, have drawn increasing attention from researchers and regulators alike Oasis is upfront that this is a snapshot, not a verdict. The testing measured how much metal is present in the material itself, not how much would actually be released during use or absorbed by the body — so no one should read these numbers as an exposure or health-risk estimate. Full metal and pesticide breakdowns for every brand are on the Oasis app.

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Friday 14 August 2026 17:17:57 GMT