Refresh N ReWear Spray 16fl oz Non-Toxic vs Waterproofing Wax for Leather: which is safer?
Grandma's Secret Refresh N ReWear Spray 16fl oz Non-Toxic is the clear pick. Nikwax Waterproofing Wax for Leather carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Grandma's Secret
Refresh N ReWear Spray 16fl oz Non-Toxic
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergens (if scented formulation)
PossibleInhalation of aerosolized spray particles
PossibleBacterial or mold growth from residual moisture
Nikwax
Waterproofing Wax for Leather
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleRespiratory irritation or fume inhalation during application
ReportedPFAS in water repellency treatment
Where these two actually differ
- We flag Fragrance allergens (if scented formulation), Inhalation of aerosolized spray particles and Bacterial or mold growth from residual moisture on the Grandma's Secret and not on the Nikwax.
- We flag Respiratory irritation or fume inhalation during application and PFAS in water repellency treatment on the Nikwax and not on the Grandma's Secret.
- The Grandma's Secret is aqueous spray, uncoated where the Nikwax is wax-based waterproofing, which is most of the difference in these two grades.
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
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