Fels-Naptha · Fabric Stain Guard Sprays
Fels Naptha Laundry Bar Soap
Lower PFAS concern for traditional bar soap product.
Fels-Naptha is traditional laundry bar soap from saponified fats and oils. No PFAS-containing coatings, treatments or non-stick surfaces are present.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Soap base (tallow, coconut oil, other saponified fats), hexachlorophene preservative (historical)
Lab data
No public lab test
What Fels Naptha Laundry Bar Soap is made of, ingredients and materials
Fels-Naptha is a bar soap made from saponified animal fats (tallow) and plant oils (coconut), plus inert ingredients like sodium chloride and sodium silicate. The saponification process converts fats into soap molecules and glycerin, which are not bioaccumulative or persistent toxins. The product is fundamentally stable at room temperature and does not break down into smaller chemical hazards during normal storage or use on textiles.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Fragrance allergens and skin sensitization
The product contains synthetic fragrance blend not fully itemized on packaging. Individuals with contact dermatitis or fragrance sensitivity may experience skin irritation from treated textiles; test on a small fabric area first if sensitive.
Sodium silicate alkalinity
Bar soaps are alkaline (pH ~9-10) and may cause hand irritation or dryness with prolonged direct contact. Rinse hands thoroughly after use; this is not a hazard for treated clothing post-wash.
Microbial growth on bar storage
Any bar soap left wet or in sealed containers can develop mold or bacterial colonies if humidity is high. Store on a draining rack and allow to air-dry between uses to prevent contamination.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
No public testing or regulatory findings document lead, cadmium, or arsenic in Fels-Naptha bar soap. Sodium silicate and sodium chloride fillers are inert and food-grade in origin.
Source, FDA ↗Formaldehyde / VOCs
Traditional bar soap formulations do not require formaldehyde preservatives. No on-record data suggests this product contains formaldehyde donors; soap's alkaline pH and shelf stability preclude such additives.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Fels-Naptha, owned by The Clorox Company, has no modern safety recalls or regulatory warnings on record for this product. The brand does not publish detailed ingredient sourcing or third-party safety certifications (e.g. Historically, the formulation contained hexachlorophene as a preservative, but this antimicrobial agent was restricted by the FDA in 1972 for consumer use and is no longer present in current batches. The company provides standard safety data sheets without special environmental or toxicological claims.
How it compares in its category
As a laundry bar soap, Fels-Naptha occupies a low-chemical niche compared to liquid detergents and powders that often contain surfactants, enzymes, optical brighteners, and synthetic fragrances. Bar soaps in general have minimal packaging waste and no water weight, reducing transport impact. However, Fels-Naptha is not certified organic or hypoallergenic, and the fragrance blend is not fully disclosed, which may be relevant for sensitive skin contact with treated textiles.
If you buy it
Store the bar in a cool, dry place away from direct sunlight to prevent mold or degradation of the soap structure. Use by rubbing directly onto stains before washing, or dissolve in warm water for general laundry loads. The product is water-soluble and rinses completely from fabrics; no residue buildup is documented. Replace when the bar becomes too small to use comfortably, typically after 20-30 laundry uses depending on stain intensity.
What we don’t know
- Basis
- Model estimate, 78% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Fels-Naptha has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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.