Fels Naptha Laundry Bar vs Waterproofing Wax for Leather: which is safer?
Fels Naptha Laundry Bar is the clear pick. Nikwax Waterproofing Wax for Leather carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Fels-Naptha
Fels Naptha Laundry Bar
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFragrance allergens (undisclosed)
PossibleSkin irritation from concentrated soap residue
PossibleMold and bacterial growth on bar surface
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 (undisclosed), Skin irritation from concentrated soap residue and Mold and bacterial growth on bar surface on the Fels-Naptha 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 Fels-Naptha.
- The Fels-Naptha is soap bar, vegetable and tallow oil base 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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