Thinx Lawsuit (PFAS Period Underwear): Settled, Paid Out, Closed - Here's the Record
If you are searching for the Thinx lawsuit in 2026, the honest answer is: it is over. Dickens v. Thinx settled for up to $5 million, claims closed in April 2023, checks went out that summer - and no new Thinx case has been filed since. Here is what happened and what it means now.
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Reviewed by Leonard Goldberg, Editor · Last updated
What the Lawsuit Alleged
Dickens v. Thinx Inc. (S.D.N.Y.) alleged that Thinx marketed its period underwear as free of harmful chemicals while independent testing found PFAS (“forever chemicals”) in the fabric. The claim was about the marketing - consumers paid for a promise of non-toxicity - not a personal-injury claim; no health damages were litigated.
Case Details
Settled on a class basis: a guaranteed $4 million fund, rising to $5 million if needed for valid claims. Final approval June 8, 2023. The class covered purchases from November 12, 2016 through November 28, 2022.
Status: Closed - Deadline Passed, Payments Made
Who Was Eligible - and Who Isn't Now
Eligible: U.S. purchasers of Thinx period underwear between November 12, 2016 and November 28, 2022 who filed by April 12, 2023. Today: no one can file - late claims are not accepted, and there is no reopened window. If you missed it, there is no Thinx payment to pursue; any site offering to 'file your Thinx claim' in 2026 is not connected to the court.
What People Actually Received
Thinx Lawsuit Timeline
- 1
2020-2022 — Suit and Testing Coverage
Consumer plaintiffs sue over PFAS findings in period underwear marketed as non-toxic.
- 2
November 2022 / January 2023 — Settlement Reached
Class settlement of up to $5M announced (sources differ on the month).
- 3
April 12, 2023 — Claim Deadline
Window closes; late claims not accepted.
- 4
June 8, 2023 — Final Approval
Court approves settlement; payments follow from late July 2023.
- 5
2024-2026 — Closed
No new Thinx litigation documented; Kimberly-Clark completes acquisition (late 2025).
Watch Out For
Closed settlements attract recycled clickbait:
'Thinx lawsuit 2026 - file now' pages
The claim window closed in April 2023. Anyone collecting your data for a Thinx claim today is not the administrator.
Confusing Thinx with Knix
Knix had its own PFAS settlement (final December 2023). Different brand, also closed.
Health-claim pitches
The case was about marketing, not injuries; no court has awarded Thinx health damages. Be skeptical of 'PFAS injury' solicitations naming Thinx.
Thinx Lawsuit - FAQ
Is the Thinx lawsuit still open?
No. Claims closed April 12, 2023, final approval came June 8, 2023, and payments were issued. No new Thinx case has been documented since.
How much did the Thinx settlement pay?
$21 per eligible pair with proof of purchase, $10.50 without, from a fund of $4M (up to $5M).
Can I still file a Thinx claim?
No - the deadline passed in 2023 and the settlement is closed.
Was it about health harm?
No - it alleged deceptive 'non-toxic' marketing after PFAS testing; no injury claims were litigated.
Does Thinx still exist?
Yes, as a Kimberly-Clark brand (majority stake 2022, full acquisition late 2025).
Is there a 2026 Thinx lawsuit?
We found none as of August 2026. Sites advertising one are recycling the closed 2023 settlement.
Which other period-underwear brands were sued?
Knix settled a similar PFAS marketing case in December 2023 (~$1.4M).
Separate from this case: were you injured in the last 2 years?
Class-action payouts are fixed amounts through an administrator. A personal injury claim is a different case — and often worth far more. Free estimate, no obligation.