Seventh Generation · Period Care
Seventh Generation Tampons
Lower concern; no known PFAS use in tampons. Brand silent on PFAS.
Seventh Generation tampons use rayon and cotton with no disclosed water-resistant or grease-resistant treatments. No public PFAS claims or third-party verification available.
We flunk more products than we pass. This one earned its grade. How we grade
Material
rayon, cotton, plastic applicator
Lab data
No public lab test
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What Seventh Generation Tampons is made of, ingredients and materials
Seventh Generation tampons use rayon (viscose) blended with cotton for the absorbent core, paired with a plastic (polypropylene) applicator. Rayon is a cellulose fiber derived from wood pulp via chemical processing; the concern historically has been residual caustic chemicals or bleach in the final fiber, but modern viscose production in regulated facilities has largely moved away from closed-loop recycling hazards. The plastic applicator is inert polypropylene, not PVC, which eliminates phthalate plasticizer risk common in older period-care applicators.
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.
Toxic shock syndrome (TSS) risk from material or contamination
TSS risk is behavioral (duration of wear and changing frequency) and tied to absorbency, not material hazard. Rayon-cotton blends do not increase TSS risk relative to other tampons. No contamination incidents specific to Seventh Generation are on record.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Residual bleach or caustic chemicals in rayon fiber
Seventh Generation explicitly claims chlorine-free bleaching. No bleach residue or chemical irritation incidents are on record for this product. Modern viscose production in Europe and North America operates under strict effluent controls.
Heavy metals
Tampons are uncolored or use FDA-approved pigments; Seventh Generation does not add synthetic dyes. No lead, cadmium, or antimony contamination is documented for this brand or rayon-based tampon products.
Source, FDA ↗Formaldehyde / VOCs
Seventh Generation tampons do not use formaldehyde-based finish resins or preservatives on record. Cotton and rayon do not inherently release formaldehyde unless treated with specific cross-linking finishes, which this product does not employ.
Source, ATSDR ↗Phthalate plasticizers in plastic applicator
Polypropylene applicators do not require phthalate plasticizers; Seventh Generation uses polypropylene, not PVC. Polypropylene is inert at body temperature and vaginal pH.
How is this PFAS grade calculated?
The brand's record and disclosure
Seventh Generation markets these tampons with explicit claims of chlorine-free bleaching and absence of synthetic fragrances, dyes, and dioxins. The brand holds third-party certifications (Leaping Bunny cruelty-free and some FSC sourcing claims on packaging). No major safety recalls or heavy-metal contamination incidents are on record for this product line. The brand does not publicly disclose PFAS testing data, but silence on PFAS in period care is standard industry-wide and not unusual for this category.
How it compares in its category
Rayon-cotton blends dominate the mainstream tampon market; Seventh Generation's variant is positioned as a lower-chemical option relative to competitors using chlorine bleaching or synthetic fragrances. Most period-care products do not disclose heavy-metal or azo-dye testing; Seventh Generation's transparency on bleaching method and absence of synthetic additives places it in the upper tier of disclosure among conventional tampons. Organic cotton alternatives exist but command higher cost and similar absorbent technology.
If you buy it
Store in a cool, dry place away from humidity to prevent mold growth in the packaging. Use within the expiration window printed on the box; rayon-cotton blends do not degrade quickly but lose absorbent consistency if stored damp or warm. Change every 4 to 8 hours to reduce toxic shock syndrome risk, regardless of flow. Plastic applicators are not flushable; discard in trash to avoid septic or municipal water system damage.
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
- Seventh Generation has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Seventh Generation Tampons?
- A third party reports verifying it as PFAS-free
- Fragrance allergens (if scented variant)
2 hazards checked on this product, all on its full breakdown.
- organic cotton with natural fibers
- The brand calls it PFAS-free, which we have not verified
- Microplastics
Organyc
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- We found no PFAS statement from the brand
- Cardboard applicator structural integrity over time
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