Ruby Love Maximum Protection Period Underwear Bundle 10 Pieces Mix & Match
A water-repellent or grease-resistant treatment of unstated chemistry, with a brand PFAS statement we have not verified.
Ruby Love says its period underwear does not contain PFAS. We record that as an unverified brand claim. Its record describes a water-repellent or grease-resistant treatment of unstated chemistry, which is still counted.
Brand says: “Ruby Love says its period underwear does not contain PFAS.”
The better-graded swap
Aisle
Aisle Period Underwear Hipster
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
Cotton/nylon blend with waterproof coating
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
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What Ruby Love Maximum Protection Period Match is made of, ingredients and materials
Ruby Love Maximum Protection uses a cotton/nylon blend with a waterproof coating of undisclosed chemistry. The cotton component provides breathability and comfort; nylon adds stretch and durability. The waterproof layer is critical to function but its specific treatment (whether fluorinated, silicone-based, wax, or other) is not stated in available product information. This opacity makes independent hazard assessment incomplete.
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Waterproof coating degradation and leaching
The coating chemistry is not disclosed by Ruby Love. Cotton/nylon blends with waterproof treatments can degrade with repeated washing, potentially releasing coating residues. Without identification of the specific treatment, leaching risk cannot be ruled out.
Nylon microfiber shedding during washing
Nylon-blended textiles can shed microfibers during laundering. Period underwear is washed frequently; cumulative fiber shedding into wastewater is a documented concern for synthetic intimate apparel but is not specific to Ruby Love or quantified for this product.
Skin irritation from coating adhesion or dye transfer
Waterproof coatings on intimate apparel can occasionally cause skin sensitivity in individuals with reactive skin, especially if the coating degrades or the garment is not rinsed thoroughly. No reports are on record for Ruby Love specifically.
What’s reassuring
Brand-stated PFAS-free
The brand states this product is PFAS-free. We have not verified the claim.
Formaldehyde / VOCs
No azo dye or formaldehyde-releasing finish contamination has been reported for Ruby Love period underwear. However, the brand does not list OEKO-TEX or similar dye/finish certification, so these hazards are not independently confirmed absent.
Source, ATSDR ↗Formaldehyde / VOCs
No formaldehyde contamination has been reported in Ruby Love elastic waistbands or trim. Elastic in period underwear is not typically treated with formaldehyde-based resins, but the absence of disclosure makes confirmation impossible.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
Ruby Love has made a PFAS-free claim but has not published third-party test reports or full material transparency on their website to verify this claim. No recalls or safety warnings are on record for this product line. The brand does not appear to hold relevant certifications (e.g., OEKO-TEX, Bluesign) that would independently confirm absence of restricted chemicals. Without disclosure of the waterproof coating chemistry or testing data, the PFAS claim remains unverified.
How it compares in its category
Period underwear typically uses synthetic waterproof layers, and most brands do not disclose coating chemistry publicly. Ruby Love's PFAS-free claim positions it ahead of brands making no such statement, but behind competitors (e.g., Thinx, Knix) that have published third-party lab reports or hold textile certifications. The cotton/nylon blend is standard for the category; durability and coating integrity after repeated washing vary widely.
If you buy it
Wash in cold water and air dry to preserve the waterproof coating and minimize any potential leaching from the coating or dyes during heat exposure. Replace the garment if waterproofing degrades (visible leaking, stiffness loss, or visible peeling of coating). Inspect seams and coating edges before first use. If you have sensitive skin or chemical sensitivities, contact the brand for full material specification before purchasing, since coating composition is not disclosed.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Ruby Love 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 Ruby Love Maximum Protection Period Underwear Bundle 10 Pieces Mix & Match?
- organic cotton, waterproof backing layer
- A third party reports verifying it as PFAS-free
- Coating degradation and microparticle shedding
2 hazards checked on this product, all on its full breakdown.
- organic cotton blend, water-resistant gusset
- The brand calls it PFAS-free, which we have not verified
- Microplastic shedding from water-resistant barrier
- Organic cotton, wood pulp fiber
- The brand calls it PFAS-free, which we have not verified
- Azo dyes and synthetic dyes
2 hazards checked on this product, all on its full breakdown.
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.