Which tampons are actually free of lead and arsenic?

Shopping by the word organic is the single biggest trap in this category, because the 2024 study found heavy metals in organic tampons too. Work down this list in order, safety first, and you will land on a genuinely clean tampon rather than a well-marketed one.

1. 1

   Look for published lab testing first

   The strongest signal is a brand that pays an independent lab to test for PFAS and heavy metals and then publishes the results. Almost no tampon brand does this, so when you find one, it tells you more than any certification. Lola, for example, publishes third-party SGS results showing no detectable lead, cadmium, arsenic, or mercury. A published lab number beats a reassuring claim every time.

2. 2

   Treat organic as a starting point, not proof

   Certified organic cotton, ideally GOTS, reduces pesticide and herbicide residue and is a real plus. But it is not the same as a clean tampon. The 2024 study found more arsenic in organic products, and an independent lab found PFAS in several organic-marketed tampons. Use organic certification to narrow the field, then look for testing to confirm what is actually inside.

3. 3

   Check the fiber: 100% cotton over rayon

   The absorbent core should be 100% cotton, ideally organic. Rayon and viscose are processed synthetic fibers that carry more manufacturing chemistry than pure cotton, and rayon is tied to the historical absorbency-related toxic shock risk. If the box lists a cotton and rayon blend, that is a step down from an all-cotton core.

4. 4

   Confirm chlorine-free bleaching

   Chlorine bleaching can leave trace dioxin, a carcinogen, in the finished product. The cleanest brands use totally chlorine-free processing and say so on the box. Elemental chlorine-free is acceptable and a step better than older methods, but totally chlorine-free is the standard to aim for.

5. 5

   Skip added fragrance and demand full disclosure

   There is no reason for added fragrance against the most absorbent tissue in your body, and the word fragrance can hide a mix of undisclosed chemicals. Choose unscented, and favor brands that publish a complete material list covering the core, applicator, string, and any additives like titanium dioxide. Since the FDA does not require disclosure, a brand that volunteers it is signaling confidence.

6. 6

   Match absorbency to your flow, then pick an applicator

   Using a higher absorbency than you need raises the risk of toxic shock syndrome, so choose the lowest absorbency that handles your flow and change it every four to eight hours. Applicator type is mostly preference and waste: cardboard and applicator-free options skip single-use plastic, while plastic applicators feel smoother but add to the landfill.