Ruby Love Teen Period Underwear Hipster
Brand silent on PFAS; waterproof coating raises moderate concern.
Ruby Love does not publicly disclose PFAS testing or avoidance. Period underwear requires waterproofing, which historically uses PFAS chemicals; no third-party verification found.
The better-graded swap
Aisle
Aisle Essential Period Hipster leakproof
90/100 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
Nylon/spandex blend with waterproof coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Ruby Love Teen Period Underwear Hipster is made of, ingredients and materials
Ruby Love Teen hipsters combine nylon and spandex (elastane) with a waterproof coating to prevent menstrual leakage. The waterproof layer is the critical unknown, such coatings are typically polyurethane or silicone-based, and when they contain fluorochemicals (PFAS), they persist in the body and environment. The nylon-spandex blend itself is stable under normal wear, but the coating's chemical composition and durability directly affect safety.
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.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Undisclosed waterproof coating chemistry
The brand has not revealed whether the coating contains PFAS, other fluorochemicals, or their specific replacements. Waterproof period underwear coatings frequently use PFAS or legacy alternatives; absence of disclosure is a red flag in this product category.
Microplastics
Nylon-spandex blends shed synthetic fibers during washing and wear, especially as the coating degrades or fabric stretches repeatedly. This contributes to microplastic pollution; ingestion risk is low, but environmental persistence is documented. No Ruby Love-specific data, but inherent to material choice.
Source, EPA ↗Coating adhesion and leaching during use
Waterproof coatings on elastic garments experience repeated flexing, heat, and friction from body contact and washing. As the coating degrades, its chemical components (whether PFAS or alternatives) may migrate into sweat and absorb into the vulva, a permeable mucous surface. Longevity of coating is unknown for this brand.
What’s reassuring
Azo dyes (synthetic dyes in nylon/spandex)
No public testing or recall data exists for Ruby Love period underwear and azo dyes. Nylon and spandex fabrics can be dyed with azo compounds, which may release carcinogenic amines under stress (sweat, heat, friction). No established issue on record for this brand, but materials allow potential.
Formaldehyde / VOCs
Some synthetic period underwear fabrics are treated with formaldehyde-based resins for wrinkle resistance or shape retention. No public disclosure or testing data exists for Ruby Love; standard nylon-spandex blends typically avoid heavy resin finishing, making this a lower risk.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
Ruby Love has not publicly disclosed the specific chemistry of its waterproof coating or whether it contains PFAS, fluorine-free alternatives, or other chemical treatments. The brand markets period underwear to teens and adults but has not pursued standard third-party certifications like OEKO-TEX Standard 100 or published materials transparency reports. This silence on coating contents is notable in a product category where PFAS use is widespread and consumer scrutiny is increasing.
How it compares in its category
Period underwear brands vary widely in transparency. Some competitors (e.g., Thinx, Knix) have published PFAS testing or committed to phasing fluorochemicals; others remain silent like Ruby Love. The teen-specific positioning here is important, adolescents may wear these products 5-7 days monthly for decades, creating a longer exposure window than single-use pads. Ruby Love's lack of disclosure puts it in the middle-to-lower range of category transparency.
If you buy it
Wash separately in cool water before first wear to reduce residual coating chemicals. Avoid hot water and machine dryers, which can degrade the waterproof layer and increase leaching. Replace every 12-18 months or when the coating visibly degrades (cracking, peeling, or reduced absorbency). Consider requesting the brand's MSDS or supplier documentation for the coating; consumer pressure can drive disclosure. Store in a dry place to prevent mold, and inspect regularly for wear.
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 none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Ruby Love Teen Period Underwear Hipster?
- 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.