Fels Naptha Laundry Bar Soap vs 303 Fabric Guard: which is safer?

Fels Naptha Laundry Bar Soap is the clear pick. 303 Fabric Guard carries a failing PFAS grade, and we never recommend buying a failing product.

Our pick

Fels-Naptha

Fels Naptha Laundry Bar Soap

PFAS grade

C 75/100

Overall grade

F 63/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Soap base (tallow, coconut oil, other saponified fats), hexachlorophene preservative (historical)

Confidence

78%

PossibleFragrance allergens and skin sensitization

PossibleSodium silicate alkalinity

PossibleMicrobial growth on bar storage

Why this gradeBuy

Zout

303 Fabric Guard

PFAS grade

F 30/100

Overall grade

F 0/100

Verdict

Skip

Hazard flags

⚑ 5

Material

Silicone-based fabric protectant coating

Confidence

45%

PossibleVolatile organic compounds (VOCs) from solvent carriers

ReportedSkin and eye irritation from spray application

PossibleCoating residue buildup and fabric texture change

Why this grade

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