The Period Company · Period Underwear
The Period Company Cotton Boxer Heavy Flow NULL
Lower concern. Cotton period product, no known PFAS risk.
Cotton boxer underwear for period care poses lower PFAS concern. No coating, waterproofing, or stain treatment disclosed. Cotton is an inherently lower-concern base material.
We flunk more products than we pass. This one earned its grade. How we grade
Material
cotton
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What The Period Company Cotton Boxer Heavy is made of, ingredients and materials
This product is cotton-based period underwear, meaning the primary material is cellulose fiber rather than synthetic polymer. Cotton itself does not leach synthetic chemicals during normal wear or laundering. The hazard profile for cotton textiles centers on dyes, finishes applied during manufacturing, and any elastic or binding components, not the fiber itself.
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.
Azo dyes and synthetic dye residues
Cotton textiles are dyed during manufacturing. Azo dyes can release aromatic amines under certain conditions; residual dyes may cause skin irritation in sensitive users. No specific testing or complaints are on record for The Period Company products, but this is a category-wide consideration for dyed cotton apparel.
Formaldehyde / VOCs
Some cotton textiles receive formaldehyde-based wrinkle-resistance or antimicrobial finishes. Pre-laundering reduces residual formaldehyde. No evidence exists that The Period Company uses such finishes, but they are common in the textile industry and warrant pre-wash protocol.
Source, ATSDR ↗Microbial growth if improperly stored or maintained
Cotton absorbs and retains moisture. If stored damp or left unwashed for extended periods, mold, mildew, or bacterial growth can occur. This is a use and storage issue, not a material defect, but relevant to safe product handling.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Elastic degradation and comfort
Waistband and leg elastics are typically made from synthetic rubber or spandex blends. No chemical leaching or failure mode is documented for this product, but elastics degrade naturally with age and washing, reducing fit and absorbency.
The full breakdown
The brand's record and disclosure
The Period Company has not published detailed chemical or PFAS disclosure statements in publicly available sources. No recalls, safety warnings, or substantiated contamination reports are on record for this brand. As a direct-to-consumer period-product maker, the brand operates in a category with light regulatory scrutiny but no known quality-control failures specific to this product line.
How it compares in its category
Cotton-based period underwear sits at the lower-chemical end of period-product options. Unlike pads or tampons that may contain superabsorbent polymers and varied additives, boxer-style cotton underwear relies on fabric absorption alone. This design avoids polymer gels and reduces the number of chemical processing steps typical of mass-market disposable menstrual products.
If you buy it
Launder the product in warm water before first use to reduce residual dyes or finishes. Wash after each use in cold or warm water with standard detergent; heat from high-temperature or prolonged dryer exposure can degrade elastic. Replace when absorbency noticeably declines or elastic loses elasticity, typically after 1-2 years of regular use. Store in a dry location to prevent mold or mildew growth.
What we don’t know
- Basis
- Model estimate, 75% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- The Period Company has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Period Underwear
Ruby Love
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- 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
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- 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.
More period underwear 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.