CHI vs Kérastase:Which is more popular?
In October 2026, CHI had more branded searches than Kérastase among heat protectant brands worldwide. CHI had about 18,100 branded searches, while Kérastase had 12,100. CHI made up 21.7% of all heat protectant brand searches we track, and Kérastase accounted for 14.5%. When we asked ChatGPT and Google AI Overviews about heat protectant brands, CHI appeared in one of the five answers and Kérastase in none.
Follow CHI vs Kérastase and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Top heat protectant brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, CHI was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Kérastase 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.
ghd1st
TRESemmé2nd
Olaplex2nd
Color Wow4th
CHI5th
Moroccanoil6th
Kérastase–
Living Proof–
Bed Head–
Not Your Mother's–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- TRESemmé3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Moroccanoil3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- ghd2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- CHI1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Olaplex1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Color Wow1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Kérastase0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Living Proof0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Bed Head0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Not Your Mother's0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about heat protectant brands
5 answers
Asked ChatGPT
“Which heat protectant should I use?”
Asked ChatGPT
“What are the best heat protectant sprays?”
Asked ChatGPT
“What's the best heat protectant for straightening hair?”
Searched Google, AI Overview
“heat protectant”
Searched Google, AI Overview
“best heat protectant”
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 25, 2026.
Is CHI or Kérastase more popular in search?
This chart shows how often people search Google for CHI and Kérastase by name. Each line represents a brand's share of searches for all ten heat protectant brands we track, month by month, from English-language searches worldwide.
Share of searches by month for CHI, Kérastase. The figures are in the table below the chart.
View monthly share of searches table
| Month | CHI | TRESemmé | Kérastase | ghd | Living Proof | Moroccanoil | Bed Head | Olaplex | Color Wow | Not Your Mother's |
|---|---|---|---|---|---|---|---|---|---|---|
| Nov 2025 | 21.4% | 14.3% | 11.7% | 14.3% | 9.6% | 11.7% | 6.4% | 4.3% | 2.8% | 3.4% |
| Dec 2025 | 20.9% | 14% | 11.4% | 14% | 9.3% | 9.3% | 9.3% | 5.1% | 3.3% | 3.3% |
| Jan 2026 | 19.1% | 19.1% | 12.8% | 12.8% | 10.5% | 8.5% | 4.7% | 5.7% | 3.1% | 3.7% |
| Feb 2026 | 18.8% | 18.8% | 12.6% | 12.6% | 10.3% | 10.3% | 3% | 6.9% | 3% | 3.7% |
| Mar 2026 | 21.8% | 17.8% | 14.6% | 11.9% | 9.7% | 9.7% | 2.8% | 5.3% | 2.8% | 3.5% |
| Apr 2026 | 19.4% | 19.4% | 13% | 13% | 10.6% | 10.6% | 2.6% | 4.6% | 3% | 3.8% |
| May 2026 | 18.2% | 18.2% | 14.9% | 14.9% | 8.1% | 9.9% | 2.4% | 5.3% | 3.5% | 4.4% |
| Jun 2026 | 16.2% | 19.8% | 16.2% | 13.2% | 8.8% | 10.8% | 2.6% | 4.8% | 3.8% | 3.8% |
| Jul 2026 | 14.6% | 21.8% | 17.8% | 11.9% | 7.9% | 9.7% | 2.3% | 5.2% | 5.2% | 3.4% |
| Aug 2026 | 19.1% | 19.1% | 15.6% | 10.4% | 8.5% | 8.5% | 3.8% | 5.7% | 4.6% | 4.6% |
| Sep 2026 | 18.8% | 15.4% | 15.4% | 10.3% | 8.4% | 8.4% | 10.3% | 5.6% | 3.7% | 3.7% |
| Oct 2026 | 21.7% | 17.7% | 14.5% | 11.9% | 7.9% | 7.9% | 5.3% | 5.3% | 4.3% | 3.5% |
Kérastase sells other things too, so only its searches that name this product count here, like “kerastase heat protectant”.
How has branded search for CHI and Kérastase changed worldwide over the last 12 months?
3 findings
- The lead changed hands 2 times in the 12 months ending October 2026: Kérastase took it in July 2026, CHI took it in August 2026.
- Across the 12 months ending October 2026, CHI’s share of searches among heat protectant brands worldwide moved from 21.4% to 21.7%, and its estimated monthly branded searches held steady at 18.1K.
- Across the 12 months ending October 2026, Kérastase’s share of searches among heat protectant brands worldwide moved from 11.7% to 14.5%, and its estimated monthly branded searches moved from 9.9K to 12.1K.
How did search popularity change for heat protectant brands worldwide in October 2026?
3 changes
In October 2026, TRESemmé overtook Kérastase to rank 2nd among heat protectant brands worldwide, with 17.7% of the searches.
In October 2026, CHI gained share of searches among heat protectant brands worldwide, from 18.8% to 21.7%.
In October 2026, Kérastase lost share of searches among heat protectant brands worldwide, from 15.4% to 14.5%.
How are CHI’s and Kérastase’s branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using CHI’s and Kérastase’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.
Other head-to-heads among heat protectant brands
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.