Reformation Review, Is Reformation Non-Toxic?
Reformation averages 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Reformation products graded as of October 2026, and none of them reach its 70 point pass mark.
Reformation grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Does Reformation have PFAS, by category
Graded and flagged Poor and Bad, we’d swap these
Reformation
Campo Bikini Bottom
- Recycled nylon (primary); standard swimwear construction
- We found no PFAS statement from the brand
- Spandex/elastane sensitization and degradation, Spandex components in swimwear elastic can degrade under UV…
3 hazards checked on this product. See all of them.
Reformation
Joy One Piece Swimsuit
- Nylon/polyamide blend (likely nylon 6 or nylon 6,6) with elastane
- We found no PFAS statement from the brand
- Azo dyes in synthetic textiles, Nylon swimwear is commonly dyed with azo colorants. Reformation does not…
3 hazards checked on this product. See all of them.
Reformation
Posidonia One Piece Swimsuit
- Nylon/polyester blend swimsuit fabric (standard synthetic)
- We found no PFAS statement from the brand
- Heavy metals, Swimwear is dyed using standard textile azo dyes; restricted azo dyes are banned in EU and…
4 hazards checked on this product. See all of them.
Reformation
Posidonia One Piece Swimsuit | Black | Medium
- Nylon blend (primary), elastane/spandex
- We found no PFAS statement from the brand
- Azo dyes (carcinogenic residues), Black dyed nylon can retain unreacted azo dye precursors or degradation…
4 hazards checked on this product. See all of them.
Reformation
Wailea One Piece Swimsuit | Black | XL
- Nylon blend swimwear (likely nylon/spandex)
- We found no PFAS statement from the brand
- Heavy metals, Nylon swimwear requires acid or reactive dyes; some manufacturers use azo dyes or include heavy…
4 hazards checked on this product. See all of them.
Reformation
Zahara Bikini Top
- Nylon/polyamide blend, no water-resistant treatment noted
- We found no PFAS statement from the brand
- Azo dyes and colorant toxicity, Nylon swimwear is commonly dyed with azo dyes, some of which can break down…
4 hazards checked on this product. See all of them.
Reformation
Women's Rio One-Piece Swimsuit
- Nylon/spandex blend with likely water-repellent coating finish
- We found no PFAS statement from the brand
- Azo dyes or restricted colorants, Reformation does not publish dye chemistry or colorant sourcing for this…
3 hazards checked on this product. See all of them.
Reformation
Wailea One Piece Swimsuit
- Nylon blend with water-repellent coating treatment (likely PFAS-based)
- We found no PFAS statement from the brand
- Azo dyes (color fastness and allergenic potential), Nylon swimwear is typically dyed with reactive or acid…
3 hazards checked on this product. See all of them.
What to buy instead Good or better, in the categories Reformation sells
Patagonia
Women's Bottom Turn Racerback Bikini Top
- Nylon/polyester blend with elastane (standard swimwear)
- The brand calls it PFAS-free, which we have not verified
- Elastane (spandex) degradation under heat or chlorine
Reformation and PFAS, common questions
- Does Reformation have PFAS?
- Reformation averages 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Reformation products graded as of October 2026, and none of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Reformation non-toxic?
- No Reformation product we graded reaches Good. The best of them is Reformation Campo Bikini Bottom at 65/100.
- Which Reformation products should I avoid?
- The lowest-graded Reformation products we have scored are Reformation Wailea One Piece Swimsuit, Reformation Women's Rio One-Piece Swimsuit, Reformation Zahara Bikini Top. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →