Jason Markk Review, Is Jason Markk Non-Toxic?
Jason Markk averages 46 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Jason Markk products graded as of October 2026, and 1 of them reach its 70 point pass mark.
Jason Markk grades Poor 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.
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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 Jason Markk have PFAS, by category
Which Jason Markk products are PFAS-free? Good or better, best-graded first
- Canvas, suede, nylon, natural rubber
- We found no PFAS statement from the brand
- Inhalation hazard from spray application. Protectant sprays typically deliver volatile carrier solvents and…
2 hazards checked on this product, all on its full breakdown.
Which Jason Markk products contain PFAS? Poor and Bad, we’d swap these
- water-repellent shoe treatment formulation
- We found no PFAS statement from the brand
- Volatile organic compounds (VOCs) in spray solvent. Water-repellent sprays typically use VOC solvents or…
5 hazards checked on this product, all on its full breakdown.
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- proprietary shoe care formulations with water/stain repellent treatments
- We found no PFAS statement from the brand
- Formulation opacity and undisclosed active ingredients. Jason Markk does not publicly list active ingredients…
4 hazards checked on this product, all on its full breakdown.
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- proprietary water-repellent spray coating
- We found no PFAS statement from the brand
- PFAS. Product chemistry not disclosed; fluorinated water repellents dominate this category. Long-chain PFAS…
4 hazards checked on this product, all on its full breakdown.
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- Proprietary water-repellent spray coating
- We found no PFAS statement from the brand
- Volatile organic compounds (VOCs) and inhalation risk. Spray-applied protectants inherently release…
3 hazards checked on this product, all on its full breakdown.
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- proprietary water/stain repellent spray coating
- We found no PFAS statement from the brand
- PFAS. Brand has not disclosed whether the repellent formula contains per- or polyfluoroalkyl substances…
4 hazards checked on this product, all on its full breakdown.
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- Proprietary water-repellent spray coating
- We found no PFAS statement from the brand
- Volatile Organic Compounds (VOCs) from solvent carriers. Aerosol spray formulations require volatile solvents…
4 hazards checked on this product, all on its full breakdown.
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- proprietary water and stain repellent coating
- We found no PFAS statement from the brand
- PFAS. Proprietary fluorinated chemistry is typical in durable shoe repellents; brand silence on PFAS status…
5 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonJason Markk and PFAS, common questions
- Does Jason Markk have PFAS?
- Jason Markk averages 46 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Jason Markk products graded as of October 2026, and 1 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Jason Markk non-toxic?
- Jason Markk Repel Bundle is the highest-graded Jason Markk 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 Jason Markk products are lower concern for PFAS?
- The highest-graded Jason Markk products we have scored are Jason Markk Repel Bundle. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which Jason Markk products should I avoid?
- The lowest-graded Jason Markk products we have scored are Jason Markk Shoe Stain & Water Repellent Spray & Refill Bundle, Jason Markk Repel Spray, Jason Markk Repel Bundle Stain & Water Repellent Spray + Refill. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →