Ruby Love Maximum Protection Period Underwear Bundle 10 Pieces Mix & Match
Waterproof period underwear; PFAS risk unknown, brand silent on treatment.
Ruby Love does not publicly disclose PFAS status or waterproofing chemistry. Period underwear typically uses water-repellent coating coatings that may contain PFAS, but Ruby Love's specific formulation is undisclosed.
The safe swap
Modibodi
Modibodi Basic Mid-Rise Period Brief
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 is silent on PFAS
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.
No PFAS disclosure
No public statement about PFAS in this product.
PFAS
Waterproofing agents in textiles can include polyurethane, silicones, or other hydrophobic polymers. Ruby Love does not specify which; some alternatives to PFAS carry their own toxicity questions. Without disclosure, the specific hazard profile of the coating remains unknown.
Source: ATSDR ↗Microfiber shedding from nylon-coating interface
Nylon-coated textiles can shed microfibers during washing, particularly if the coating degrades over time. This is not unique to Ruby Love but is a real concern with synthetic-coated garments worn intimately and washed frequently.
Skin irritation from coating materials or residues
Direct contact of a waterproof coating with sensitive vulvar skin over extended wear (12+ hours) carries potential for irritation if the coating material contains unreacted monomers or sensitizing additives. No complaints or recalls specific to Ruby Love are on record, but the lack of material transparency makes this unverifiable.
What’s reassuring
Formaldehyde / VOCs
No public recalls or testing data specific to Ruby Love period underwear for formaldehyde. Cotton-nylon blends can be treated with formaldehyde-based finishes for wrinkle resistance or mildew prevention, but no evidence suggests Ruby Love uses this process.
Source: ATSDR ↗Azo dyes and synthetic colorants
The underwear is available in black and other colors. No public testing or complaints specific to Ruby Love suggest azo dye use or heavy metal dyes in pigments. Standard textile dyeing in this price range typically meets basic safety thresholds.
The full breakdown
What it's made of and why it matters
Ruby Love's period underwear uses a cotton-nylon blend with a waterproof coating applied to the gusset. The coating's chemical composition is not disclosed, which is the core issue: waterproofing in textiles commonly uses PFAS or PFAS alternatives, neither of which Ruby Love has publicly specified. Cotton itself is low-risk; nylon adds durability but the coating's formulation is the unknown variable that determines actual safety.
The brand's record and disclosure
Ruby Love has not published material safety data, PFAS testing results, or manufacturing transparency on their website or packaging. The brand does not list certifications like OEKO-TEX, GOTS, or specific chemical restrictions. This silence on waterproofing chemistry is notable because competitors like Thinx and others have begun disclosing or eliminating PFAS in response to consumer pressure. The absence of a clear stance suggests either incomplete chemical knowledge or reluctance to disclose.
How it compares in its category
Period underwear as a category inherently requires water resistance, making PFAS or similar chemicals likely in most brands unless explicitly stated otherwise. Ruby Love's lack of transparency puts it in the middle of the market: not as forthcoming as brands pursuing PFAS-free claims, nor as cautious as those pursuing full certifications. Most competitors at similar price points also do not disclose, making this a category-wide gap rather than a Ruby Love-specific failure.
If you buy it
Wash in cold water and air-dry to minimize any coating degradation and potential microfiber shedding. Do not use fabric softeners or bleach, which can damage the waterproof layer and affect durability. Replace when waterproofing noticeably diminishes (typically 12-24 months with regular wash-wear cycles). Consider requesting material safety data directly from Ruby Love before purchase if PFAS exposure is a personal concern.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Ruby Love has made none
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.