Laundry Soap vs Purex Fels-Naptha Laundry Bar & Stain Remover & Pre-treater: which is safer?
Fels-Naptha Laundry Soap is our pick: better on PFAS and on the overall hazard picture.
Our pick
Fels-Naptha
Laundry Soap
PFAS grade
C 75/100
Overall grade
D 67/100
Verdict
Buy
Hazard flags
⚑ 2
Material
soap bar (saponified tallow, coconut oil, naptha)
Confidence
85%
PossibleFragrance allergens or sensitizers
PossibleSkin irritation from high alkalinity
Fels-Naptha
Purex Fels-Naptha Laundry Bar & Stain Remover & Pre-treater
PFAS grade
C 75/100
Overall grade
F 63/100
Verdict
Buy
Hazard flags
⚑ 3
Material
soap bar, sodium tallowate and coconut oil base
Confidence
82%
PossibleFragrance allergens and sensitizers
PossibleAlkalinity and skin irritation
PossibleResidue buildup on fabric or skin
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 →
More fabric protection treatment sprays: see the full ranking