PFAS40/ 100Poor
Overall6/ 100Bad
Jason Markk Shoe Stain & Water Repellent Spray & Refill Bundle

Jason Markk · Fabric Stain Guard Sprays

Jason Markk Shoe Stain & Water Repellent Spray & Refill Bundle

Poor

Skip until brand discloses coating chemistry or third-party testing.

Verdict · SkipPFAS concern is critical; non-PFAS hazards are not on record, but proprietary chemistry and silent brand stance warrant cautious use and source verification before purchase.

Jason Markk's shoe care spray contains undisclosed water and stain repellent coatings. No PFAS claims, certifications, or public lab testing available.

Still want this one anyway? Check the price on Amazon. We’d swap it.

Material

proprietary water and stain repellent coating

Brand disclosure

Brand is silent on PFAS

Lab data

No public lab test

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2 hazards checked on this product, all on its full breakdown.

What Jason Markk Shoe Stain Refill Bundle is made of, ingredients and materials

Jason Markk's repellent spray uses a proprietary water and stain repellent coating formulation that the brand has not publicly disclosed in detail. Water and stain repellents in this product category historically rely on fluorinated compounds (PFAS) to achieve durable hydrophobic performance, though Jason Markk has not confirmed or ruled out their use. Without independent testing or brand transparency, the actual chemistry and persistence of this coating on footwear remains unclear. The spray is applied topically to shoes and dries to form a protective layer.

What’s concerning

♾️

Waterproof / stain-resistant treatment

Water-repellent coating treatments have historically used PFAS.

65/ 100
♾️

Category baseline

The starting point for this type of product, before anything specific to this product is counted.

90/ 100
♾️

No PFAS disclosure

No public statement from the brand about PFAS in this product.

85/ 100
♾️

PFAS

Proprietary fluorinated chemistry is typical in durable shoe repellents; brand silence on PFAS status combined with PFAS grade of 40/100 indicates probable fluorine content. No independent lab report or certification available to rule this out.

Source, ATSDR ↗
20/ 100
💨

Inhalation exposure (aerosol spray)

All spray-applied coatings carry inhalation risk during application. Hazard depends on volatile organic compound (VOC) profile and particle size, which Jason Markk has not disclosed for this product. Standard aerosol precautions (ventilation, skin avoidance) apply.

70/ 100
⚠️

Skin and eye irritation from spray contact

Repellent coating sprays can cause irritation if directly contacted; Jason Markk product label will specify precautions, but no independent irritancy testing is on public record for this formulation.

70/ 100
💨

VOC off-gassing and environmental persistence

Spray-applied coatings typically release volatile solvents during drying. If the formulation contains PFAS, the coating will persist on footwear and in the environment long-term; if non-PFAS silicone or wax-based, persistence is shorter but off-gassing profile remains undisclosed.

70/ 100
⚠️

Aquatic toxicity from rinse-off or disposal

When treated shoes are washed, coating particles may enter wastewater. PFAS-based repellents are bioaccumulative and resist degradation in aquatic systems; silicone or wax alternatives are less persistent but still poorly characterized for aquatic impact without brand disclosure.

70/ 100

How is this PFAS grade calculated?

The brand's record and disclosure

Jason Markk has not made public commitments to PFAS-free formulations or disclosed third-party testing results for this product. The brand's silence on coating chemistry is notable in a market where competitors increasingly publish safety data or certifications in response to PFAS scrutiny. No major recalls or safety controversies are on record for this specific product. This lack of transparency makes independent assessment of hazard risk difficult.

How it compares in its category

Shoe care sprays and water repellents span a wide range of chemistries, from PFAS-based (more durable, higher environmental concern) to silicone-based or wax-based alternatives (lower PFAS risk, often shorter durability). Jason Markk's refusal to disclose or certify its formulation puts it in a less transparent position than brands offering PFAS-free or fluorine-free claims backed by testing. Performance and longevity claims are common across the category, but durability often correlates with fluorine content. Competitors like Crep Protect and Scotchgard offer more explicit material disclosures or third-party certifications.

If you buy it

Apply in well-ventilated areas and allow full drying time before wearing treated shoes to minimize inhalation exposure. Avoid spray contact with skin, eyes, and mucous membranes. Reapply as directed on label, typically every few months or after heavy washing, depending on shoe use and weathering. Store upright in a cool, dry place away from heat and flame, as aerosol products are flammable. If seeking long-term footwear protection, inquire directly with Jason Markk about PFAS-free alternatives or third-party test results before committing to repeat purchases.

What is not known about PFAS in this product?

Basis
Model estimate, 35% confidence, not a lab result
Lab test
None on record for this exact product
Brand statement
Jason Markk has made none

Formulations change between production runs, so check the current label. How we grade.

What are the PFAS-free alternatives to Jason Markk Shoe Stain & Water Repellent Spray & Refill Bundle?

Nikwax Waterproofing Wax for Leather

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65GoodPFAS grade
  • wax-based waterproofing
  • The brand calls it PFAS-free, which we have not verified
  • Respiratory irritation or fume inhalation during application

2 hazards checked on this product, all on its full breakdown.

Find an alternative on Amazon
  • mink oil paste, natural oil-based conditioner
  • We found no PFAS statement from the brand
  • Microbial growth (natural oil rancidity)

2 hazards checked on this product, all on its full breakdown.

Find an alternative on Amazon
Timberland Waximum Waxed Leather Protector

Timberland

Waximum Waxed Leather Protector

65GoodPFAS grade
  • Wax-based leather protector
  • We found no PFAS statement from the brand
  • Volatile organic compounds (VOCs) from solvents

3 hazards checked on this product, all on its full breakdown.

Find an alternative on Amazon

More fabric stain guard sprays grades

How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.