OB Review, Is OB Non-Toxic?
OB averages 63 out of 100 on PFAS Authority's PFAS and toxin screen across the 6 OB products graded as of October 2026, and 5 of them reach its 70 point pass mark.
OB grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
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.
Which OB products are PFAS-free? Good or better, best-graded first
- rayon/viscose, cotton, and gelling polymers
- We found no PFAS statement from the brand
- Microplastic shedding or degradation. The polyacrylate gel polymer may shed microscopic particles during use…
3 hazards checked on this product, all on its full breakdown.
- rayon and cotton fiber
- We found no PFAS statement from the brand
- Bacterial contamination during storage or use. Moist rayon-cotton fibers are susceptible to bacterial or…
- rayon or cotton absorbent core, plastic applicator
- We found no PFAS statement from the brand
- Dioxins and furans from rayon processing. Rayon production historically involved chlorine-bleaching steps…
3 hazards checked on this product, all on its full breakdown.
- cotton, rayon, cardboard
- We found no PFAS statement from the brand
- Allergic contact dermatitis from additives or fragrance, o.b. Ultra does not claim to be fragrance-free or…
- cellulose, polyethylene, absorbent core (typical period pad materials)
- We found no PFAS statement from the brand
- Absorbent polymer (sodium polyacrylate) allergic sensitization. Sodium polyacrylate is used in nearly all…
3 hazards checked on this product, all on its full breakdown.
Which OB products contain PFAS? Poor and Bad, we’d swap these
- Cellulose/wood pulp core with adhesive; leak-guard likely polymer-based
- We found no PFAS statement from the brand
- PFAS. Industry testing has confirmed PFAS in period pad waterproof layers; OB's Capri Plus does not disclose…
3 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonOB and PFAS, common questions
- Does OB have PFAS?
- OB averages 63 out of 100 on PFAS Authority's PFAS and toxin screen across the 6 OB products graded as of October 2026, and 5 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is OB non-toxic?
- O.b Pro Comfort Super Plus 16 pad is the highest-graded OB product we have scored, at 70/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which OB products are lower concern for PFAS?
- The highest-graded OB products we have scored are O.b Pro Comfort Super Plus 16 pad, o.b. ProComfort Tampons, o b Tampons. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which OB products should I avoid?
- The lowest-graded OB products we have scored are Capri Plus OB Pads - Mini. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →