Our take
Why It’s on Our Radar
We don't recommend it as a clean pick. It's conglomerate-owned and settled a class action over PFAS in products marketed as clean. It's here as a cautionary reference, with founder-owned, PFAS-tested alternatives above.
What's inside
Ingredients & Safety
Marketed as a clean leakproof underwear, but the brand settled a class action alleging undisclosed PFAS "forever chemicals" in its period underwear.
We read every line on this label. Nothing here is on our watch or caution list — no synthetic fragrance, no flagged chemicals.
Full Ingredient List
- Nylon
- Elastane
- Cotton Gusset
Prefer a spotless pick? Natracare in Period Care is Clean Verified — every ingredient clean, with no recalls or lawsuits on record.
Who owns it
Ownership & Independence
Essity, the Swedish hygiene multinational, acquired a majority stake in Knix in 2022 (reported ~US$400M). Knix is no longer independent.
Where to buy
Key Products
- Leakproof Underwear View on Amazon →
- Period Underwear (Knixteen) View on Amazon →
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