Lola Bikini Period Underwear
Brand claims PFAS-free, but no third-party verification provided.
Lola states their period underwear uses PFAS-free water-resistant treatment on organic cotton. No independent lab testing or certification visible to confirm the claim.
Brand says: “PFAS-free water-resistant technology”
The safe swap
Lola
The Lola High Waist Period Underwear
100/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
organic cotton with water-resistant finish
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
period care is a category where PFAS exposure is more common.
Water-resistant coating composition (unspecified)
Lola does not disclose the specific polymer or water-repellent coating (water-repellent coating) chemistry used. If non-fluorinated alternatives are genuinely used, risk is minimal; if a fluorocarbon other than Teflon-type coating is present, skin contact and wash-water contamination remain possible. The lack of transparency prevents full assessment.
Microplastic shedding from synthetic finish
Any synthetic coating on fabric can shed microplastics during washing and wear, particularly if the finish degrades over time. Organic cotton base mitigates some risk, but the water-resistant layer itself may be synthetic polymer. Repeated washing will gradually erode the coating.
Formaldehyde / VOCs
Organic cotton does not eliminate formaldehyde use in textile finishing (e.g., resin cross-linking or dye fixation). Lola claims organic status but does not specify whether the garment is finished with formaldehyde-free processes. Any residual formaldehyde is unlikely to be high enough to cause acute harm, but skin contact on sensitive individuals is a known concern.
Source: ATSDR ↗Allergic sensitization from undisclosed additives
Organic cotton reduces pesticide residue, but the water-resistant finish, elastane components, and dye/fixation chemistry remain undisclosed. Individuals with sensitive skin or latex/elastane allergies should contact Lola for full material composition before purchase.
What’s reassuring
Brand-stated PFAS-free
The brand states the product is PFAS-free (self-declared).
Azo dyes or synthetic dye hazards
No public recalls or warnings exist for Lola period underwear related to azo dye contamination or heavy metals in dyes. If the brand uses GOTS-certified suppliers for organic cotton, azo dye restrictions are typically enforced, but Lola does not advertise GOTS certification, so this cannot be confirmed.
The full breakdown
What it's made of and why it matters
Lola's period underwear uses organic cotton as the primary fabric, which avoids synthetic pesticide residues common in conventional cotton. The water-resistant finish is the critical variable here: it likely involves a coating or treatment to achieve leak protection without Teflon-type coating (Teflon). Organic cotton itself poses minimal chemical hazard, but the durability and composition of the water-resistant layer determines whether microplastics or synthetic chemicals migrate into skin or wash water over time.
The brand's record and disclosure
Lola markets itself as a period-care brand with emphasis on sustainability and chemical transparency. The brand claims PFAS-free construction, but as noted, no independent third-party testing (e.g., Oeko-Tex, GOTS verification) has been publicly disclosed to verify this claim. Lola has not published detailed material safety data sheets or disclosed the specific water-resistant technology used. Without certification or transparency, the claim remains a marketing statement rather than a verified standard.
How it compares in its category
Period underwear as a category typically uses either synthetic blends (polyester/nylon with elastane) or organic cotton bases, both with proprietary water-resistant finishes. Lola's organic cotton choice aligns with the premium, eco-conscious segment. Competitors like Thinx and Knix similarly claim PFAS-free or reduced-chemical approaches but also lack universal third-party verification. Lola's positioning is middle-of-pack for this category: better transparency than some mass-market brands, but less certified than specialized textiles with Oeko-Tex Gold.
If you buy it
Wash in cold water with mild detergent to preserve the water-resistant coating and minimize microplastic shedding. Avoid bleach, fabric softener, and high heat drying, which can degrade the finish and trigger chemical leaching. Replace every 6-12 months depending on wash frequency and visible coating wear (flaking, pilling, reduced absorbency). Do not machine dry on high heat; air dry or use low heat to extend product life and reduce potential off-gassing.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Lola has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Period Underwear
Modibodi
Basic Mid-Rise Period Brief
organic cotton blend with water-resistant coating
Water-resistant coating degradation
Limited concern
Microbial growth and odor with improper care
Limited concern
Lower concern. MADE SAFE certified, PFAS-free claimed and tested.
✓Lab test found no PFAS
Lola
The Lola High Waist Period Underwear
organic cotton with water-resistant treatment
Water-resistant coating degradation and microplastic shedding
Limited concern
Allergen sensitivity to cotton or treatment additives
Limited concern
Lower concern; PFAS-free certified, organic cotton base.
✓Lab test found no PFAS
Lola
Organic Cotton Period Underwear
organic cotton with gusseted absorbent layer
Formaldehyde / VOCs
Limited concern
Azo dyes and color fastness
Limited concern
Microplastic shedding
Limited concern
Lower concern. Organic cotton core, no water-resistant treatment disclosed.
⚠Risky category by default
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.