Cora Organic Cotton Liners
Lower concern; organic cotton liners unlikely to contain PFAS.
Cora's organic cotton liners are made from a bare natural fiber with no disclosed coating or treatment. No brand PFAS claims or third-party verification found, but cotton itself poses lower PFAS risk.
We flunk more products than we pass. This one earned its grade. How we grade
Material
organic cotton
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Cora Organic Cotton Liners is made of, ingredients and materials
Cora Organic Cotton Liners are constructed from certified organic cotton, which means the fiber was grown without synthetic pesticides, herbicides, or genetically modified seeds. Organic cotton production avoids residual agrochemical contamination that can occur in conventional cotton. The material itself does not inherently require chemical finishes or coatings for function, reducing exposure to dyes, resins, or antimicrobial treatments typical in some period-care 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.
Bacterial or fungal overgrowth during storage or wear
Organic cotton is a natural fiber that can retain moisture and harbor microorganisms if stored damp or worn for extended periods without replacement. Proper drying, laundering, and timely disposal reduce this risk.
Irritation or allergic reaction to dyes or undisclosed additives
Although organic certification limits synthetic treatments, individual sensitivity to plant-based or low-impact dyes remains possible. No allergic reaction complaints are on record for this brand, but fragrance-free or dye-free variants may reduce irritation risk in sensitive users.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Formaldehyde / VOCs
Organic cotton typically does not undergo formaldehyde cross-linking or wrinkle-resistant treatments; no evidence of such finishes in Cora Organic Cotton Liners. Standard organic certification prohibits synthetic finish resins.
Source, ATSDR ↗Heavy metals
Cora markets these liners as natural and organic; no public record of azo dye use or heavy metal testing failures. However, the brand does not publicly disclose dye specification or third-party color-fastness testing.
Source, FDA ↗Antimony in polyester or synthetic fiber content
This product is cotton-only, not polyester-blended, so antimony catalyst residues from polyester production are not applicable.
How is this PFAS grade calculated?
The brand's record and disclosure
Cora has built a public brand identity around organic and natural period care; organic certification is prominently marketed. The brand does not publicly disclose PFAS testing or formal stance on per- and polyfluoroalkyl compounds, though organic cotton sourcing typically mitigates industrial fluorochemical exposure. No major recalls, safety controversies, or third-party testing failures are on record for this product line.
How it compares in its category
Period liners span a wide hazard range, conventional pads often use super-absorbent polymers, dyes, and fragrance; some employ water-resistant backings treated with fluorochemicals (PFAS); reusable fabric liners vary by material and finish. Organic cotton liners sit at the lower-complexity end, avoiding synthetic absorbent gels and reducing likelihood of fluorochemical water-resistance coatings. The trade-off is lower absorbency and shorter wear life compared to gel-core disposables.
If you buy it
Store in a dry, cool place to prevent mildew or bacterial growth in organic fiber. Wash before first use and after each wearing; standard gentle machine wash with fragrance-free detergent is appropriate. Replace when fabric thins, develops odor that cleaning does not resolve, or shows mold discoloration. Do not bleach, as this may degrade fiber integrity and introduce chlorine residues.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Cora has made none
Formulations change between production runs, so check the current label. How we grade.
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- Fragrance allergens (if scented variant)
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