Anigan · Period Underwear
Hannahpad USA High Waist Organic Period Underwear
Lower PFAS concern; organic cotton absorbers, but no public PFAS testing or claim.
Hannahpad's organic period underwear is made primarily from organic cotton, which carries lower inherent PFAS risk than synthetic waterproof films. However, the brand has not publicly disclosed PFAS testing, third-party certifications, or explicit PFAS-free claims.
Shop Anigan on Amazon →Material
organic cotton with absorbent gusset layers
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
period care is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
Hannahpad uses organic cotton in the absorbent gusset layers, which avoids synthetic polymer coatings that would introduce leaching or off-gassing concerns. Organic cotton certification typically excludes synthetic dyes, pesticide residues, and heavy metal mordants used in conventional cotton processing. The high-waist design means minimal elastic exposure to skin and no waterproof backing layer (unlike some period products), reducing contact with potential lining chemicals. Absorbency relies on natural fiber thickness rather than chemical absorbent polymers, lowering chemical exposure pathways.
The brand's record and disclosure
Anigan (maker of Hannahpad) maintains organic certification claims but has not published detailed chemical safety testing, PFAS statements, or third-party lab reports on their website or marketing materials. No product recalls or safety violations have been publicly documented for this line. The brand emphasizes eco-positioning but does not disclose whether dyes, elastic, or thread undergo heavy-metal screening. Transparency on washing/care instructions and chemical safety claims is minimal compared to some competitors.
How it compares in its category
Period underwear typically divides into organic-fiber designs (like this) and synthetic blends with water-resistant backing (polyester, spandex, sometimes polyurethane coatings). Organic cotton alternatives avoid microfiber shedding and synthetic chemical leaching, but may have lower absorbency per garment weight. Hannahpad's organic positioning places it in the mid-to-premium segment; direct competitors include Thinx (synthetic/PUL coating, not organic) and smaller organic brands (Lunapads, some direct-to-consumer labels). Organic cotton underwear generally carries lower documented chemical risk than synthetic waterproof alternatives.
If you buy it
Wash in cold or warm water (not hot) with mild detergent; hot water can weaken organic cotton fibers and elastic longevity. Do not bleach or use fabric softeners, which can degrade absorbency and introduce chemical coatings. Air dry or low heat only; high heat degrades elastic and may tighten fibers unevenly. Replace after visible wear to elasticity or absorbency decline (typically 12-24 months with daily use); degraded elastic increases bacteria trapping risk.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Formaldehyde in fabric finishes and dyes
Organic cotton may still use formaldehyde-releasing dyes or wrinkle-resistant finishes during processing. Anigan does not publicly disclose dye chemistry or finishing agents; GOTS organic certification covers pesticides and heavy metals but not all finishing chemicals.
Heavy metals in dyes and thread
Organic certification does not exclude all heavy metals in colorant mordants or synthetic thread used in elastic and seams. No third-party heavy-metal testing data is available for this product.
Elastic degradation and moisture trapping
Period underwear elastics wear faster with daily washing; degraded elastic can trap moisture, sweat, and bacteria against skin, increasing yeast or bacterial infection risk. This is a use-phase risk, not manufacturing, but proper care extends safe wear life.
Dye allergens or sensitizers
Organic cotton does not exclude azo dyes or contact allergens if dyes are applied post-certification. Sensitive-skin individuals may react to undisclosed dye chemistry; patch testing on small area first is prudent for new users.
Microfiber shedding and water contamination
Organic cotton sheds natural fibers rather than microplastics, avoiding the microfiber pollution concern associated with synthetic blends. No established risk of hazardous particulate shedding from this product material class.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Period Underwear
JAMA Organic
LOLA Organic Cotton Period Underwear
Organic cotton with moisture-wicking gusset
Lower PFAS concern, organic cotton base with no waterproof claims, but brand doesn't explicitly address PFAS.
✓Verified PFAS-free by a third party
JAMA Organic
Organyc Certified Organic Cotton Disposable Period Underwear for Sensitive Skin
certified organic cotton with absorbent core
Lower concern, organic cotton base suggests minimal PFAS risk, but no explicit PFAS statement limits confidence.
✓Verified PFAS-free by a third party
Ruby Love
Women's Hipster Period Underwear
organic cotton with waterproof coating
Lower concern, PFAS-free verified; buy with confidence.
✓Lab test found no PFAS
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.