Kose Review, Is Kose Non-Toxic?
Kose averages 75 out of 100 on PFAS Authority's PFAS and toxin screen across the single Kose product graded as of October 2026, which reaches its 70 point pass mark.
Kose grades Excellent 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.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Which Kose products are PFAS-free? Good or better, best-graded first
- Stick deodorant base (typically waxes, oils, starch)
- We found no PFAS statement from the brand
- Fragrance allergens (undisclosed components). Product does not list specific fragrance ingredients; synthetic…
3 hazards checked on this product, all on its full breakdown.
Kose and PFAS, common questions
- Does Kose have PFAS?
- Kose averages 75 out of 100 on PFAS Authority's PFAS and toxin screen across the single Kose product graded as of October 2026, which reaches its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Kose non-toxic?
- Kose - Desodorante Stick Deo Carat is the highest-graded Kose product we have scored, at 75/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Kose products are lower concern for PFAS?
- The highest-graded Kose products we have scored are Kose - Desodorante Stick Deo Carat. That is our model-based estimate from materials and public disclosure, not a lab test.
Every grade uses the same public rubric. How grades work →