Brandwave

Knix vs Libra:Which is more popular?

In September 2026, Knix had more branded searches than Libra among period care brands worldwide. Knix had about 172,000 branded searches, while Libra had 1,020. Knix made up 39.1% of all period care brand searches we track, and Libra accounted for 0.23%. When we asked ChatGPT and Google AI Overviews about period care brands, Knix appeared in two of the five answers and Libra in none.

Among period care brands worldwide in September 2026

Who do people search for more?

Knix, about 169 searches for every 1 for Libra

Knix 172K searchesLibra 1K searches

Who does AI mention more?

Knix, mentioned in 2 of 5 answers, Libra in 0

Knix in 2 of 5Libra in 0 of 5

Who does AI recommend more?

Knix, the only one of the two named

Knix first in 2Libra never named

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Top period care brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Knix was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Libra did not appear in any of the five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Rael1st
  2. Always2nd
  3. Cora3rd
  4. L.4th
  5. Saalt5th
  6. Knix6th
  7. Stayfree–
  8. Modibodi–
  9. Thinx–
  10. Libra–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Rael5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Cora4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • L.3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Always3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Knix2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Saalt2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Stayfree0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Modibodi0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Thinx0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Libra0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about period care brands

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.

Is Knix or Libra more popular in search?

This chart shows how often people search Google for Knix and Libra by name. Each line represents a brand's share of searches for all ten period care brands we track, month by month, from English-language searches worldwide.

Knix and Libra among period care brands worldwide, by month

Share of searches by month for Knix, Libra. The figures are in the table below the chart.

View monthly share of searches table
MonthKnixStayfreeModibodiSaaltCoraThinxRaelL.LibraAlways
Oct 202533.8%22.6%17.6%5.8%4.6%7.8%5.6%1.9%0.17%0.15%
Nov 202544.3%17.5%16.8%5.3%3.5%7.5%3.5%1.4%0.07%0.09%
Dec 202536.9%20.1%16.6%7.2%4.1%10%3.3%1.6%0.08%0.11%
Jan 202638.9%17.3%16.5%5.9%3.5%12.3%3.5%1.9%0.08%0.11%
Feb 202637.9%16.7%13.2%5.6%3.4%18%3.4%1.6%0.09%0.11%
Mar 202637.7%19.5%12.5%6.8%3.9%13.1%4.8%1.5%0.09%0.1%
Apr 202642.3%17.1%12.1%6.3%3.5%13%4.2%1.3%0.07%0.09%
May 202636.2%16.3%17.9%6.8%4%14.4%2.7%1.5%0.07%0.11%
Jun 202638.4%15.1%18.1%6.8%3.7%13.2%3.1%1.4%0.05%0.08%
Jul 202641.5%14.3%15.6%7.3%4.3%12.2%2.9%1.7%0.06%0.08%
Aug 202641.8%17.5%14.2%7.7%5.3%7.9%2.9%2.5%0.1%0.11%
Sep 202639.1%20.6%13.8%7.2%6.2%5.7%4.1%2.8%0.23%0.13%

How has the Knix and Libra comparison changed over the last 12 months?

3 findings
  • Knix was ahead of Libra in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Knix’s share of searches among period care brands worldwide moved from 33.8% to 39.1%, and its estimated monthly branded searches moved from 135K to 172K.
  • Across the 12 months ending September 2026, Libra’s share of searches among period care brands worldwide moved from 0.17% to 0.23%, and its estimated monthly branded searches moved from 700 to 1K.

How did search popularity change for period care brands worldwide in September 2026?

2 changes
  1. In September 2026, Knix lost share of searches among period care brands worldwide, from 41.8% to 39.1%.

  2. In September 2026, Libra rose from 10th to 9th among period care brands worldwide.

How are branded searches counted?

7 search terms

Brandwave collects information about searches that people make online using Knix’s and Libra’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Knix

5 branded search terms

  • knix
  • knix bras
  • knix period underwear
  • knix underwear
  • knixwear

Libra

2 branded search terms

  • libra care
  • libra period

How the Brand Demand Index is measured

Other head-to-heads among period care brands

Creator with pink hair and a pink jacket

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