K18 vs Olaplex:Which is more popular by branded search?
In August 2026, Olaplex had more branded searches than K18 among hair mask brands worldwide. Olaplex was estimated to have 550K branded searches compared to K18’s 480, and held a 17.6% Share of Search versus K18’s 0.02%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, K18 or Olaplex?
Compare the hair mask brands people buy. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Olaplex, K18. The figures are in the table below the chart.
View monthly share of search table
| Month | Kérastase | Olaplex | Moroccanoil | Redken | K18 |
|---|---|---|---|---|---|
| Oct 2025 | 51.3% | 23% | 15.4% | 10.3% | 0.02% |
| Nov 2025 | 56.3% | 20.7% | 13.8% | 9.2% | 0.02% |
| Dec 2025 | 51.2% | 23% | 15.4% | 10.3% | 0.01% |
| Jan 2026 | 55.1% | 20.3% | 13.5% | 11.1% | 0.02% |
| Feb 2026 | 55.2% | 20.2% | 13.5% | 11.1% | 0.02% |
| Mar 2026 | 55.1% | 20.3% | 13.5% | 11.1% | 0.01% |
| Apr 2026 | 52.8% | 23.7% | 12.9% | 10.6% | 0.02% |
| May 2026 | 49.6% | 22.3% | 18.2% | 10% | 0.02% |
| Jun 2026 | 55.2% | 20.2% | 13.5% | 11.1% | 0.01% |
| Jul 2026 | 60% | 18% | 12.1% | 9.9% | 0.02% |
| Aug 2026 | 58.4% | 17.6% | 14.4% | 9.6% | 0.02% |
| Sep 2026 | — | — | — | — | — |
How has the K18 and Olaplex comparison changed over the last 12 months?
3 findings
- Olaplex was ahead of K18 in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, K18’s estimated Share of Search among hair mask brands worldwide held steady at 0.02%, and its estimated monthly branded searches moved from 590 to 480.
- Across the 11 months ending August 2026, Olaplex’s estimated Share of Search among hair mask brands worldwide moved from 23% to 17.6%, and its estimated monthly branded searches moved from 673K to 550K.
How did search popularity change for hair mask brands worldwide in August 2026?
2 changes
Olaplex’s estimated Share of Search among hair mask brands worldwide has lost ground for 3 months in a row, from 22.3% to 17.6% in August 2026.
Estimated monthly branded searches for K18 worldwide fell 18.6% over 11 measured months, from 590 to 480 in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using K18’s and Olaplex’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.
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.