Does Saalt period underwear have PFAS?
Saalt period underwear averages 31 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Saalt period underwear products graded as of October 2026, below the 48 out of 100 median for the 21 other period underwear brands graded alongside it.
Saalt period underwear averages Poor on our four-band scale. 1 of the 7 we graded is worth buying. That is above 33% of the period underwear brands we grade.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Saalt period underwear worth buying Good or better, best-graded first
- cotton, nylon, elastane blend with absorbent gusset
- We found no PFAS statement from the brand
- Formaldehyde / VOCs. Cotton and cotton-blend underwear may receive formaldehyde-based dyes or wrinkle-resist…
4 hazards checked on this product, all on its full breakdown.
Which Saalt period underwear contains PFAS? Poor and Bad, we’d swap these
- organic cotton with waterproof barrier layer (unspecified)
- We found no PFAS statement from the brand
- Waterproof barrier composition (unknown polymer type). The unspecified waterproof layer could be…
4 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Organic cotton + polyurethane waterproof layer
- We found no PFAS statement from the brand
- Polyurethane coating degradation and leaching. Polyurethane waterproof layers degrade over repeated washing…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Nylon/polyester blend with leak-proof coating (composition unspecified)
- We found no PFAS statement from the brand
- PFAS. Nylon-polyester blends with leak-proof coatings typically use PFAS or Teflon-type coating-adjacent…
4 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- Cotton blend with waterproof/absorbent coating, composition unspecified
- We found no PFAS statement from the brand
- Waterproof coating leachates (undisclosed chemistry). The brand has not disclosed whether the waterproof…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- nylon blend with moisture-wicking treatment, unknown water-repellent finish
- We found no PFAS statement from the brand
- PFAS. The undisclosed water-repellent treatment may contain PFAS compounds commonly used for durable moisture…
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- Modal fabric with undisclosed waterproof/leak-proof treatment
- We found no PFAS statement from the brand
- PFAS. The waterproof/leak-proof treatment is not named in public materials. Industry standard for this…
3 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonBetter period underwear from other brands
Graded higher than the Saalt average of 31.
- organic cotton, waterproof backing layer
- A third party reports verifying it as PFAS-free
- Coating degradation and microparticle shedding
2 hazards checked on this product, all on its full breakdown.
- organic cotton blend, water-resistant gusset
- The brand calls it PFAS-free, which we have not verified
- Microplastic shedding from water-resistant barrier
- Organic cotton, wood pulp fiber
- The brand calls it PFAS-free, which we have not verified
- Azo dyes and synthetic dyes
2 hazards checked on this product, all on its full breakdown.
The same question, asked of the other period underwear brands
Best average grade first. Saalt averages 31.
See every Saalt product we grade on the Saalt brand page, or the full period underwear ranking.