Lunapads · Period Underwear
Lunam Full Brief
Lower-concern option; brand claims PFAS-free with third-party backing, though waterproof layer polymer not fully disclosed.
Lunapads explicitly markets the Lunam Full Brief as PFAS-free and holds MADE SAFE certification, which screens for per- and polyfluorinated chemicals. The core material is organic cotton, reducing baseline risk.
Brand says: “Lunapads briefs are PFAS-free and made with organic cotton”
Material
organic cotton, waterproof layer (unspecified polymer)
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
Why this grade
Category baseline
period care is a category where PFAS exposure is more common.
Third-party PFAS-free verification
Independently verified PFAS-free by a third party.
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
The Lunam Full Brief uses certified organic cotton for the absorbent layers, which eliminates pesticide residues common in conventional cotton underwear. The waterproof backing is a synthetic polymer (specific type undisclosed by brand, but claimed PFAS-free), which prevents leaking without relying on per- and polyfluoroalkyl compounds. Organic cotton reduces exposure to formaldehyde resins and azo dyes that are common in conventional textile dyeing, making this a lower-chemical choice for a product worn against sensitive skin for extended periods.
The brand's record and disclosure
Lunapads has built its reputation on transparency about material sourcing and has publicly committed to PFAS-free manufacturing, with claims reportedly backed by third-party testing. The brand does not fully disclose the specific polymer used in the waterproof layer, which is a minor transparency gap but not unusual in the menstrual product industry. No recalls or safety controversies are on record for this product line. The company is Canadian-based and operates under consumer-protection jurisdiction with established accountability.
How it compares in its category
Period underwear as a category carries lower inherent chemical risk than disposable pads (which often contain plastics and undisclosed absorbent gels) because they are washable and use simple textile construction. Lunam's organic cotton base distinguishes it from competitors using conventional cotton or synthetic blends, which may contain synthetic dyes and finishing chemicals. Most period underwear relies on undisclosed waterproof polymers; Lunam's PFAS-free commitment is a competitive safety advantage. Compared to reusable cloth pads, period underwear offers similar chemical safety but greater convenience.
If you buy it
Wash in cold or warm water (not hot, which can degrade the waterproof polymer over time) and air dry to extend product life. Inspect the garment every 6-12 months for signs of delamination or loss of water resistance, as the polymer coating will eventually wear with repeated washing. Avoid fabric softeners and bleach, which can compromise both the organic cotton and the waterproof layer. Replace when absorbency noticeably decreases or the waterproof backing begins to separate.
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 resins in fabric finishing
Organic cotton certification typically excludes formaldehyde-releasing resins used in wrinkle-resistant or antimicrobial finishes. No formaldehyde concerns have been reported for Lunapads products.
Azo dyes and synthetic dye contaminants
Organic cotton standards restrict use of certain azo dyes that can release carcinogenic amines. The brand has not disclosed dye sources, but organic certification provides reasonable assurance against the highest-risk compounds.
Waterproof polymer coating degradation and leachates
The undisclosed polymer backing may degrade over time with washing and heat, potentially releasing small amounts of breakdown products. Without knowing the specific polymer type, complete safety profile cannot be confirmed, though PFAS-free status reduces the primary concern in this category.
Allergic sensitization from fragrance or residual dyes
Lunapads products are not scented and use minimal finishing chemicals, lowering risk compared to fragranced period products. No contact dermatitis reports are established for this brand's period underwear.
Microplastic shedding from synthetic waterproof layer
The synthetic polymer backing may shed microfibers during washing, though the quantity is likely minimal and no testing data is publicly available. This is a consideration for all synthetic-backed textiles, not specific to this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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.
Formulations and coatings change between production runs. Always check the current label before buying.
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.