Brandwave

How popular isK18?

In September 2026, people searched for K18 by name about 49,500 times in the United Kingdom, an 18.2% decrease from the previous year. These searches made up 16.6% of all United Kingdom shampoo brand searches, placing K18 second out of 15 brands. When we asked both ChatGPT and Google AI Overviews about shampoo brands, K18 did not appear in any of the answers.

Search and AI answers in September 2026

K18 is the second most searched of 15 competitors and not listed in any AI answer.

  1. KérastaseShare of searches 24.8%Mentioned in 2 of 5 AI answersPlace in AI recommendations 2nd
  2. K18Share of searches 16.6%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
  3. OlaplexShare of searches 16.6%Mentioned in 1 of 5 AI answersPlace in AI recommendations 4th
  4. MoroccanoilShare of searches 9.1%Mentioned in 1 of 5 AI answersPlace in AI recommendations 5th
  5. RedkenShare of searches 6.1%Mentioned in 2 of 5 AI answersPlace in AI recommendations 3rd

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Top shampoo brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, K18 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. L'Oréal Paris Elvive1st
  2. Kérastase2nd
  3. Redken3rd
  4. Olaplex4th
  5. Moroccanoil5th
  6. Dove6th
  7. Herbal Essences7th
  8. Head & Shoulders8th
  9. K18–
  10. OGX–
  11. +5 more

Mentioned by AI

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

  • L'Oréal Paris Elvive4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Kérastase2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Redken2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Head & Shoulders2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Olaplex1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Moroccanoil1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Dove1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Herbal Essences1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • K180 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

+5 more

See every answer about shampoo brands

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in United Kingdom on October 26, 2026.

Which shampoo brands compete with K18?

K18 against shampoo brands in the United Kingdom, by month

Share of searches by month for Kérastase, K18, Olaplex, Moroccanoil, Redken, OGX, Philip Kingsley, Aussie, TRESemmé, Dove, Head & Shoulders, Herbal Essences, L'Oréal Paris Elvive. The figures are in the table below the chart.

View monthly share of searches table
MonthKérastaseK18OlaplexMoroccanoilRedkenOGXPhilip KingsleyAussieTRESemméDoveHead & ShouldersHerbal EssencesL'Oréal Paris ElvivePanteneBumble and bumble
Oct 202522.2%18.2%18.2%9.9%6.7%3.6%4.4%3%2.4%1.3%3%2%2.4%1.6%1.1%
Nov 202525%16.8%20.6%11.2%6.2%2.7%4.1%2.2%1.8%1.5%2.2%1.5%1.8%1.2%1%
Dec 202524.4%16.3%19.9%10.9%6%3.3%4.9%2.7%1.8%1.5%2.2%1.5%2.2%1.5%1.2%
Jan 202625.7%17.2%17.2%9.4%6.3%3.4%4.2%2.8%2.3%1.5%2.8%1.9%2.3%1.9%1.2%
Feb 202625.2%16.8%16.8%9.2%6.2%4.1%4.1%2.8%2.2%2.2%2.8%2.2%2.2%1.8%1.2%
Mar 202623.5%15.7%19.2%10.5%5.7%3.8%3.8%3.1%2.1%2.1%3.1%2.1%2.1%1.7%1.4%
Apr 202621.4%17.5%17.5%9.6%6.4%4.3%4.3%3.5%2.3%2.3%3.5%2.3%2%1.9%1.3%
May 202621.1%14.1%17.3%14.1%5.2%4.2%4.2%3.5%2.8%2.8%3.5%2.3%2%1.5%1.3%
Jun 202621.5%14.4%17.6%11.7%6.4%4.3%4.3%3.5%3.5%2.9%2.9%2.3%1.9%1.6%1.3%
Jul 202622.2%14.8%14.8%9.9%5.4%8.1%4.4%3.6%3.6%3%3%2.4%1.9%1.6%1.1%
Aug 202625.2%16.8%13.8%9.2%6.2%5%4.1%3.4%2.8%2.8%2.8%2.2%2.2%1.8%1.8%
Sep 202624.8%16.6%16.6%9.1%6.1%4%4%3.3%3.3%2.7%2.7%2.2%2.2%1.5%0.97%

  1. 1.Kérastase

    24.8%

    Held 1st. 74K estimated branded searches, 0% vs prior month. Share -0.4 points.

  2. 2.K18

    16.6%

    Held 2nd. 49.5K estimated branded searches, 0% vs prior month. Share -0.3 points.

  3. 3.Olaplex

    16.6%

    Held 3rd. 49.5K estimated branded searches, +22.2% vs prior month. Share +2.8 points.

  4. 4.Moroccanoil

    9.1%

    Held 4th. 27.1K estimated branded searches, 0% vs prior month. Share -0.1 points.

  5. 5.Redken

    6.1%

    Held 5th. 18.1K estimated branded searches, 0% vs prior month. Share -0.1 points.

  6. 6.OGX

    4%

    Held 6th. 12.1K estimated branded searches, -18.2% vs prior month. Share -1 points.

  7. 7.Philip Kingsley

    4%

    Held 7th. 12.1K estimated branded searches, 0% vs prior month. Share -0.1 points.

  8. 8.Aussie

    3.3%

    Held 8th. 9.9K estimated branded searches, 0% vs prior month. Share -0.1 points.

  9. 9.TRESemmé

    3.3%

    Moved from 11th to 9th. 9.9K estimated branded searches, +22.2% vs prior month. Share +0.6 points.

  10. 10.Dove

    2.7%

    Moved from 9th to 10th. 8.1K estimated branded searches, 0% vs prior month. Share 0 points.

  11. 11.Head & Shoulders

    2.7%

    Moved from 10th to 11th. 8.1K estimated branded searches, 0% vs prior month. Share 0 points.

  12. 12.Herbal Essences

    2.2%

    Held 12th. 6.6K estimated branded searches, 0% vs prior month. Share 0 points.

  13. 13.L'Oréal Paris Elvive

    2.2%

    Held 13th. 6.5K estimated branded searches, 0% vs prior month. Share 0 points.

  14. 14.Pantene

    1.5%

    Moved from 15th to 14th. 4.4K estimated branded searches, -18.5% vs prior month. Share -0.4 points.

  15. 15.Bumble and bumble

    0.97%

    Moved from 14th to 15th. 2.9K estimated branded searches, -46.3% vs prior month. Share -0.9 points.

Compare popularity between K18 and its closest rivals

Every comparison with K18

14 comparisons

How has branded search demand for K18 changed in the United Kingdom over the last 12 months?

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for K18 in the United Kingdom fell from 60.5K to 49.5K.
  • Across the 12 months ending September 2026, K18’s share of searches among shampoo brands in the United Kingdom decreased from 18.2% to 16.6%.
  • Across the 12 months ending September 2026, K18’s share of searches among shampoo brands in the United Kingdom peaked at 18.2% in October 2025 and was lowest at 14.1% in May 2026.

How did search popularity change for United Kingdom shampoo brands in September 2026?

6 changes

  1. In September 2026, TRESemmé overtook Dove and Head & Shoulders to rank 9th among shampoo brands in the United Kingdom, with 3.3% of the searches.

  2. In September 2026, Olaplex gained share of searches among shampoo brands in the United Kingdom, from 13.8% to 16.6%.

  3. In September 2026, OGX lost share of searches among shampoo brands in the United Kingdom, from 5% to 4%.

  4. In September 2026, Bumble and bumble lost share of searches among shampoo brands in the United Kingdom, from 1.8% to 0.97%.

  5. Moroccanoil’s share of searches among shampoo brands in the United Kingdom has lost ground for 3 months in a row, from 11.7% to 9.1% in September 2026.

  6. In September 2026, Pantene rose from 15th to 14th among shampoo brands in the United Kingdom.

How are K18’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using K18’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • k18

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