Rex Review, Is Rex Non-Toxic?
Rex averages 85 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Rex products graded as of November 2026, and all 8 reach its 70 point pass mark.
Rex 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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- 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
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- 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
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- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
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2 hazards checked on this product, all on its full breakdown.
Does Rex have PFAS, by category
Which Rex products are PFAS-free? Good or better, best-graded first
- Hydrocarbon wax blend
- We found no PFAS statement from the brand
- Inhalation of wax fumes during application. Heating any paraffin or hydrocarbon wax can release volatile…
3 hazards checked on this product, all on its full breakdown.
- Paraffin wax blend
- We found no PFAS statement from the brand
- Inhalation of wax dust and volatile organics. Scraping and brushing paraffin wax can generate fine dust.…
2 hazards checked on this product, all on its full breakdown.
- paraffin wax blend
- We found no PFAS statement from the brand
- Hydrocarbon vapor inhalation during application. Paraffin wax releases light aliphatic hydrocarbons when…
2 hazards checked on this product, all on its full breakdown.
- Hydrocarbon wax blend
- We found no PFAS statement from the brand
- Volatile organic compound (VOC) emissions. Hydrocarbon waxes may off-gas minor volatile compounds during…
2 hazards checked on this product, all on its full breakdown.
- Wax-based grip compound
- We found no PFAS statement from the brand
- Volatile organic compound (VOC) off-gassing. Wax formulations may contain trace solvents or petroleum…
4 hazards checked on this product, all on its full breakdown.
- hydrocarbon wax-based ski klister
- We found no PFAS statement from the brand
- Volatile organic compounds (VOCs) during application. Hydrocarbon-wax klisters release solvents when warmed…
2 hazards checked on this product, all on its full breakdown.
- wax-based ski/snowboard grip product
- We found no PFAS statement from the brand
- Hydrocarbon solvent vapors (volatile organic compounds). Ski waxes release low levels of aliphatic…
2 hazards checked on this product, all on its full breakdown.
- Unknown, likely composite or plastic base
- We found no PFAS statement from the brand
- Plasticizer leaching (if PVC or soft plastic base). Unknown plastic composition means phthalates or BPA…
4 hazards checked on this product, all on its full breakdown.
What to buy instead Good or better, in the categories Rex sells
- hydrocarbon ski wax (non-fluorinated)
- The brand calls it PFAS-free, which we have not verified
- Volatile Organic Compounds (VOCs) and mineral oil vapor
3 hazards checked on this product, all on its full breakdown.
- hydrocarbon wax blend
- The brand calls it PFAS-free, which we have not verified
- Thermal degradation and fume emission
3 hazards checked on this product, all on its full breakdown.
- Wax-based ski base, fluorine-free formulation
- The brand calls it PFAS-free, which we have not verified
- Inhalation of wax particulates and volatiles during application
Rex and PFAS, common questions
- Does Rex have PFAS?
- Rex averages 85 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Rex products graded as of November 2026, and all 8 reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Rex non-toxic?
- Rex Grip Wax 45g Red is the highest-graded Rex product we have scored, at 85/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Rex products are lower concern for PFAS?
- The highest-graded Rex products we have scored are Rex Grip Wax 45g Red, Rex Grip Wax Purple 45g, Rex Grip Wax 30GB. 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 →