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.
No listed ingredient is currently on our watch or caution list. This finding applies only to the ingredient list shown below and may not cover every product, variant, market, or reformulation.
Ingredient list reviewed
- Nylon
- Elastane
- Cotton Gusset
Formula scope: the disclosed ingredient list captured for this review. Formulas can differ by product, scent, country, and date; compare the current package with this list before deciding.
Want another top-tier option? Natracare in Period Care currently meets our top criteria. Review its formula scope and cited records before deciding.
Who owns it
Ownership & Independence
Essity acquired 80% of Knix in 2022 for USD $320 million on a cash-and-debt-free basis, according to Essity's July 8, 2022 announcement. Knix is no longer independent.
- Founded
- 2013
- Headquarters
- Toronto, ON, Canada
- Control
- 80% owned by Essity (Swedish hygiene company): stake acquired 2022
Where to buy
Key Products
As an Amazon Associate, we earn from qualifying purchases. Commissions never influence scores.
Check the exact formula, size, seller, and availability on Amazon. Search links show results that may include other brands. Links open in a new tab.
- Leakproof Underwear Search on Amazon →
- Period Underwear (Knixteen) Search on Amazon →