Lunapads · Period Underwear
Love Luna Women's Full Brief Period Panty
Lower PFAS concern, but opacity on waterproof backing material is a gap.
Love Luna period panties are primarily organic cotton, a naturally lower-risk material. However, the brand does not publicly disclose what material or coating provides waterproofing in the gusset, a common location for PFAS use in absorbent period products.
Shop Lunapads on Amazon →Material
Organic cotton with absorbent gusset; waterproof backing unspecified
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
Love Luna briefs use certified organic cotton in the gusset, which eliminates synthetic pesticide residues and reduces agricultural chemical contamination common in conventional cotton. The waterproof backing material is not publicly specified by Lunapads, creating a gap: waterproof layers in period underwear typically use polyurethane or polyester blends, some of which may incorporate PFAS for water resistance. Organic cotton itself does not leach harmful chemicals when worn against skin, but the backing formulation and any adhesives joining layers warrant clarification from the manufacturer.
The brand's record and disclosure
Lunapads has operated since 1999 and markets themselves as an eco-conscious brand with a focus on sustainable materials; they explicitly highlight organic cotton certification but do not publicly disclose the chemical composition of waterproof backing or independent testing results. The company has not faced major safety recalls or regulatory actions on record. However, their silence on PFAS use in waterproof coatings, formaldehyde-free production, or third-party chemical testing is a transparency gap compared to some competitors who explicitly certify PFAS-free status.
How it compares in its category
Period underwear varies widely in material disclosure: premium brands like Knix and Thinx have published PFAS testing and claim PFAS-free backing, while many mid-market options provide minimal chemical information. Lunapads sits in the middle: credible organic cotton sourcing but less transparency on synthetic layers than leaders in the segment. Most period underwear uses some form of waterproof synthetic polymer, so Lunapads is not unusual, but competitors with explicit PFAS and chemical certifications offer more assurance.
If you buy it
Wash in cold water and air dry to avoid degrading the waterproof backing; heat can accelerate polymer breakdown and potential microleaching. Replace the garment after 2-3 years or if the backing develops visible wear, cracks, or peeling, which signals the waterproof layer is compromised. Avoid bleach and fabric softeners, which can degrade synthetic coatings. If you have sensitive skin or concerns about unspecified synthetics, contact Lunapads directly for detailed material specifications before purchase.
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.”
Phthalates (plasticizers in waterproof backing)
If the waterproof backing uses conventional PVC or polyurethane adhesives, phthalates may be present; organic cotton does not contain them, but the backing formulation is undisclosed. No recall or testing data exists for this product.
Formaldehyde resins (fabric treatments)
Organic cotton is not typically treated with formaldehyde-releasing resins, and Lunapads does not cite such treatments. No evidence of formaldehyde use in this product on record.
Microplastics from backing degradation
Repeated washing and wear will eventually degrade any synthetic waterproof layer; unspecified backing composition means unclear microplastic shedding rate. This is a general concern for all synthetic-backed period underwear, not unique to Lunapads.
Azo dyes (synthetic colorants)
Organic cotton certification does not exclude synthetic azo dyes used in printing or dyeing the finished garment. Lunapads does not certify azo-dye-free production. No safety incidents reported.
Adhesive or coating leachables from waterproof layer
Waterproof backing must be bonded to cotton; adhesives and any monomers from polyurethane or polyester coatings could theoretically contact skin, especially if the backing is damaged. Lack of material disclosure prevents full risk assessment.
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.