Does The Period Company period underwear have PFAS?
The Period Company period underwear averages 70 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 The Period Company period underwear products graded as of October 2026, above the 48 out of 100 median for the 21 other period underwear brands graded alongside it.
The Period Company period underwear averages Good on our four-band scale. 8 of the 8 we graded are worth buying. That is above 83% 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.
The Period Company period underwear worth buying Good or better, best-graded first
The Period Company
The High Waisted Period. in Organic Cotton For Heavy Flows
- organic cotton with absorbent gusset
- We found no PFAS statement from the brand
- Azo dyes in textile coloring, Organic cotton does not rule out synthetic azo dyes used in dyeing or printing.…
5 hazards checked on this product. See all of them.
The Period Company
Cotton Boxer Heavy Flow NULL
- cotton
- We found no PFAS statement from the brand
- Azo dyes and synthetic dye residues, Cotton textiles are dyed during manufacturing. Azo dyes can release…
3 hazards checked on this product. See all of them.
The Period Company
The High Waisted Period. in Cotton For Medium Flows Women's
- cotton blend, absorbent core
- We found no PFAS statement from the brand
- Azo dyes and colorfast residues, Cotton blends are typically dyed with reactive or azo dyes; poorly fixed…
4 hazards checked on this product. See all of them.
The Period Company
Bikini Heavy Flow Women's
- Absorbent textiles, likely cotton or synthetic blend
- We found no PFAS statement from the brand
- Azo dyes and synthetic dye residues, Textiles dyed with azo compounds can release aromatic amines under sweat…
5 hazards checked on this product. See all of them.
The Period Company
The Thong Period. in Sporty Stretch For Light Flows
- Organic cotton, elastane blend
- We found no PFAS statement from the brand
- Azo dyes and colorant toxicity, Product color (if dyed) sourcing is not disclosed by brand. Organic cotton…
3 hazards checked on this product. See all of them.
The Period Company
The Thong Period. in Microfiber For Light Flows. Black / 3X
- Microfiber polyester blend
- We found no PFAS statement from the brand
- Azo dyes and color fastness, Black microfiber garments often use azo dyes, some of which can degrade to…
4 hazards checked on this product. See all of them.
The Period Company
The High Waisted Period (FlowStretch)-BLACK
- cotton, elastane blend fabric
- We found no PFAS statement from the brand
- Synthetic elastane degradation and microfiber shedding, Elastane (spandex) fibers can shed microfibers during…
4 hazards checked on this product. See all of them.
The Period Company
The Thong Period (Sporty Stretch)
- Nylon, elastane blend fabric
- We found no PFAS statement from the brand
- Elastane (spandex) stability and degradation, Elastane degrades over time with exposure to heat, chlorine…
Better period underwear from other brands
Graded higher than the The Period Company average of 70.
Ruby Love
Rubylove First Period Kit +teen Period Underwear
- 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. See all of them.
Lunapads
3-Pack BOOST Brief
- organic cotton blend, water-resistant gusset
- The brand calls it PFAS-free, which we have not verified
- Microplastic shedding from water-resistant barrier
Aisle
Super Hipster
- 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. See all of them.
The same question, asked of the other period underwear brands
Best average grade first. The Period Company averages 70.
See every The Period Company product we grade on the The Period Company brand page, or the full period underwear ranking.