Kérastase vs OUAI:Which is more popular?
In September 2026, Kérastase had more branded searches than OUAI among hair oil brands worldwide. Kérastase had about 49,500 branded searches, while OUAI had 22,200. Kérastase made up 8.2% of all hair oil brand searches we track, and OUAI accounted for 3.7%. When we asked ChatGPT and Google AI Overviews about hair oil brands, Kérastase appeared in one of the five answers and OUAI in none.
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Top hair oil brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Kérastase was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. OUAI 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.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Moroccanoil5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Mielle4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Olaplex3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Kérastase1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Verb1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Gisou0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
OGX0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
OUAI0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Amika0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Briogeo0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about hair oil brands
5 answers
Asked ChatGPT
“Which hair oil brand should I buy?”
Asked ChatGPT
“What are the best hair oil brands?”
Asked ChatGPT
“What's the best hair oil brand for frizzy hair?”
Searched Google, AI Overview
“hair oil”
Searched Google, AI Overview
“best hair oil”
Brands are shown in the order each answer named them. The survey took place in the United States on October 22, 2026.
Is Kérastase or OUAI more popular in search?
This chart shows how often people search Google for Kérastase and OUAI by name. Each line represents a brand's share of searches for all 11 hair oil brands we track, month by month, from English-language searches worldwide.
Share of searches by month for Kérastase, OUAI. The figures are in the table below the chart.
View monthly share of searches table
| Month | Moroccanoil | Gisou | Kérastase | Mielle | Verb | OGX | Olaplex | OUAI | Amika | Briogeo | JVN |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 62.6% | 8.4% | 8.4% | 6.4% | 3.8% | 3.1% | 2.1% | 4.6% | 0.18% | 0.33% | 0.18% |
| Nov 2025 | 60.7% | 12.1% | 8.2% | 5.1% | 3% | 2.4% | 2.4% | 5.5% | 0.14% | 0.26% | 0.21% |
| Dec 2025 | 62.7% | 10.3% | 8.4% | 5.1% | 3.1% | 2.5% | 2.5% | 4.6% | 0.22% | 0.27% | 0.22% |
| Jan 2026 | 60.7% | 8.2% | 8.2% | 7.4% | 3.7% | 3.7% | 3% | 4.5% | 0.22% | 0.32% | 0.26% |
| Feb 2026 | 60.7% | 8.2% | 8.2% | 7.4% | 3.7% | 4.5% | 3% | 3.7% | 0.26% | 0.31% | 0.26% |
| Mar 2026 | 62.9% | 6.9% | 8.5% | 6.3% | 3.8% | 4.6% | 2.5% | 3.8% | 0.27% | 0.27% | 0.22% |
| Apr 2026 | 58.4% | 6.4% | 9.6% | 7.1% | 5.3% | 5.3% | 2.9% | 4.3% | 0.25% | 0.25% | 0.21% |
| May 2026 | 69.9% | 5.1% | 6.3% | 4.7% | 3.4% | 4.2% | 2.3% | 3.4% | 0.24% | 0.2% | 0.17% |
| Jun 2026 | 59.2% | 6.5% | 9.7% | 5.9% | 5.3% | 5.3% | 2.9% | 4.4% | 0.26% | 0.26% | 0.16% |
| Jul 2026 | 55.5% | 9.1% | 11.2% | 5.5% | 5% | 6.1% | 2.7% | 4.1% | 0.24% | 0.24% | 0.2% |
| Aug 2026 | 62.8% | 6.9% | 8.4% | 5.1% | 4.6% | 4.6% | 3.1% | 3.8% | 0.22% | 0.22% | 0.14% |
| Sep 2026 | 60.6% | 8.2% | 8.2% | 5.9% | 5.5% | 3.7% | 3.7% | 3.7% | 0.31% | 0.26% | 0.16% |
How has the Kérastase and OUAI comparison changed over the last 12 months?
3 findings
- Kérastase was ahead of OUAI in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Kérastase’s share of searches among hair oil brands worldwide moved from 8.4% to 8.2%, and its estimated monthly branded searches moved from 60.5K to 49.5K.
- Across the 12 months ending September 2026, OUAI’s share of searches among hair oil brands worldwide moved from 4.6% to 3.7%, and its estimated monthly branded searches moved from 33.1K to 22.2K.
How did search popularity change for hair oil brands worldwide in September 2026?
4 changes
In September 2026, Gisou overtook Kérastase to rank 2nd among hair oil brands worldwide, with 8.2% of the searches.
In September 2026, Olaplex overtook OUAI to rank 7th among hair oil brands worldwide, with 3.7% of the searches.
OUAI’s share of searches among hair oil brands worldwide has lost ground for 3 months in a row, from 4.4% to 3.7% in September 2026.
Estimated monthly branded searches for Kérastase worldwide fell 18.2% over 12 measured months, from 60.5K to 49.5K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Kérastase’s and OUAI’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.
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