Does Aisle period underwear have PFAS?
Aisle period underwear averages 72 out of 100 on PFAS Authority's PFAS and toxin screen across the 11 Aisle period underwear products graded as of October 2026, above the 48 out of 100 median for the 21 other period underwear brands graded alongside it.
Aisle period underwear averages Good on our four-band scale. 8 of the 11 we graded are worth buying. That is above 90% of the period underwear brands we grade.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Aisle period underwear worth buying Good or better, best-graded first
Aisle
Super Hipster
- Organic cotton, wood pulp fiber
- The brand calls it PFAS-free, which we have not verified
- Azo dyes and synthetic dyes, Organic cotton still undergoes dyeing; if conventional (non-reactive) dyes are…
2 hazards checked on this product. See all of them.
Aisle
Period Underwear Hipster
- organic cotton, bamboo, gusseted absorbent layers
- The brand calls it PFAS-free, which we have not verified
- Formaldehyde / VOCs, Natural fiber textiles may use formaldehyde-based dyes or sizing agents during…
4 hazards checked on this product. See all of them.
Aisle
BOOST Hipster Size PFAS Free leakproof period underwear
- absorbent fabric blend with proprietary waterproof barrier
- The brand calls it PFAS-free, which we have not verified
- Undisclosed waterproof barrier chemistry, The proprietary waterproof treatment is stated as PFAS-free but its…
3 hazards checked on this product. See all of them.
Aisle
Essential Period Hipster leakproof
- textile base with water-resistant/leak-proof coating (type unspecified)
- The brand calls it PFAS-free, which we have not verified
- Coating degradation and microplastic shed, Water-resistant coatings on textiles can degrade with washing and…
3 hazards checked on this product. See all of them.
Aisle
Leakproof Thong Period Underwear
- Fabric blend with waterproof/leak-resistant coating (type unspecified)
- The brand calls it PFAS-free, which we have not verified
- Coating degradation and functional loss, All fabric waterproof coatings degrade over time with laundering and…
4 hazards checked on this product. See all of them.
Aisle
Best-Selling Leakproof Period Boxer Brief - Essential Boxer Essential Boxer Eucalyptus / 2X
- Cotton blend with unspecified waterproof/leakproof coating
- The brand calls it PFAS-free, which we have not verified
- Coating degradation and material shedding, Non-PFAS waterproof coatings (polyurethane, silicone, wax blends)…
3 hazards checked on this product. See all of them.
Aisle
Essential High-Rise Period Brief, Leakproof Underwear Essential Brief Black / S
- Unspecified waterproof/leak-resistant coating on undisclosed base textile
- The brand calls it PFAS-free, which we have not verified
- Microplastics, Waterproof coatings on textiles, especially polyurethane or TPU, can shed microfibers and…
2 hazards checked on this product. See all of them.
Aisle
Essential Hipster
- Organic cotton and viscose
- We found no PFAS statement from the brand
- Azo dyes in viscose or cotton dyes, Viscose and cotton are commonly dyed with azo-based colorants during…
3 hazards checked on this product. See all of them.
Graded and flagged Poor and Bad, we’d swap these
Aisle
Adjustable Absorbency Period Underwear with BOOSTER BOOST Brief Black / 1X
- organic cotton with water-repellent finish, unspecified
- We found no PFAS statement from the brand
- PFAS, Aisle does not disclose the waterproofing chemistry. Legacy PFAS (PFOA, PFOS) and newer PFAS…
3 hazards checked on this product. See all of them.
Aisle
Leakproof Low-Rise Period Underwear Essential Hipster Black / XXS
- Nylon/polyester blend with leakproof coating, composition unspecified
- We found no PFAS statement from the brand
- Undisclosed leakproof coating chemistry, Nylon/polyester blend period underwear requires a water-repellent…
2 hazards checked on this product. See all of them.
Aisle
Leakproof Period Underwear - Thong Style Essential Thong Black / XL
- nylon/spandex blend with undisclosed waterproof coating
- We found no PFAS statement from the brand
- Waterproof coating composition (undisclosed), Nylon-spandex blends require a hydrophobic layer for…
3 hazards checked on this product. See all of them.
Better period underwear from other brands
Graded higher than the Aisle average of 72.
Ruby Love
Rubylove First Period Kit +teen Period Underwear
- 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. See all of them.
Lunapads
3-Pack BOOST Brief
- organic cotton blend, water-resistant gusset
- The brand calls it PFAS-free, which we have not verified
- Microplastic shedding from water-resistant barrier
Lunam Hipster Brief Light Flow
- organic cotton blend, no water-repellent coating
- The brand calls it PFAS-free, which we have not verified
- Elastane/spandex degradation under stress
2 hazards checked on this product. See all of them.
The same question, asked of the other period underwear brands
Best average grade first. Aisle averages 72.
See every Aisle product we grade on the Aisle brand page, or the full period underwear ranking.