Jason Markk Review, Is Jason Markk Non-Toxic?
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.
Across 2 graded products, Jason Markk averages Poor (40/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade Good or better yet. Grades are model-based estimates, not lab results.
Graded and flagged Poor and Bad, we’d swap these
Jason Markk
Repel Spray
Proprietary water-repellent spray coating
Skip until brand discloses or tests for PFAS in this waterproofing spray.
⚠Waterproof or stain-proof treatment
Jason Markk
Shoe Care Repel Spray
proprietary water-repellent spray coating
Skip or request PFAS disclosure; shoe repel sprays commonly use PFAS water-repellent coating chemistry, brand silent.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →