--- title: "K18 vs TRESemmé: Which is searched more in the United Kingdom?" description: "Is K18 or TRESemmé more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Shampoo brands set in the United Kingdom. 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." canonical: "https://gobrandwave.com/demand/uk/compare/k18-hair-vs-tresemme" publisher: "Brandwave" --- # K18 vs TRESemmé: Which is searched more in the United Kingdom? Is K18 or TRESemmé more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Shampoo brands set in the United Kingdom. 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. ## Key facts - **Compared**: K18 and TRESemmé - **Competitive set**: Shampoo brands - **Market**: United Kingdom - **Month measured**: Sep 2026 - **K18 Share of Search**: 16.6% - **TRESemmé Share of Search**: 3.3% ## Is K18 or TRESemmé more popular in search? - In September 2026, K18 had more branded searches than TRESemmé among shampoo brands in the United Kingdom. K18 had about 49,500 branded searches, while TRESemmé had 9,900. K18 made up 16.6% of all shampoo brand searches we track, and TRESemmé accounted for 3.3%. - K18 was ahead of TRESemmé in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, K18’s share of searches among shampoo brands in the United Kingdom moved from 18.2% to 16.6%, and its estimated monthly branded searches moved from 60.5K to 49.5K. - Across the 12 months ending September 2026, TRESemmé’s share of searches among shampoo brands in the United Kingdom moved from 2.4% to 3.3%, and its estimated monthly branded searches moved from 8.1K to 9.9K. ## Top shampoo brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, neither K18 nor TRESemmé showed up in any of the five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | L'Oréal Paris Elvive | 1st | 2 of 3 | 2 of 2 | 4 of 5 | | Kérastase | 2nd | 1 of 3 | 1 of 2 | 2 of 5 | | Redken | 3rd | 1 of 3 | 1 of 2 | 2 of 5 | | Olaplex | 4th | 1 of 3 | 0 of 2 | 1 of 5 | | Moroccanoil | 5th | 0 of 3 | 1 of 2 | 1 of 5 | | Dove | 6th | 0 of 3 | 1 of 2 | 1 of 5 | | Herbal Essences | 7th | 0 of 3 | 1 of 2 | 1 of 5 | | Head & Shoulders | 8th | 2 of 3 | 0 of 2 | 2 of 5 | | K18 | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | OGX | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Philip Kingsley | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Aussie | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | TRESemmé | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Pantene | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Bumble and bumble | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about shampoo brands - Asked ChatGPT "Which shampoo should I use in the UK?": 1. Head & Shoulders, 2. L'Oréal Paris Elvive - Asked ChatGPT "What are the best shampoo brands?": 1. L'Oréal Paris Elvive, 2. Olaplex, 3. Redken, 4. Kérastase, 5. Head & Shoulders - Asked ChatGPT "What is the best shampoo for hair loss?": named none of the brands we track - Searched Google, AI Overview "shampoo": 1. L'Oréal Paris Elvive, 2. Dove, 3. Herbal Essences - Searched Google, AI Overview "best shampoo": 1. L'Oréal Paris Elvive, 2. Moroccanoil, 3. Kérastase, 4. Redken Not named in any answer: K18, OGX, Philip Kingsley, Aussie, TRESemmé, Pantene and Bumble and bumble. Brands are listed in the order each answer named them. The answers were collected in United Kingdom on October 26, 2026. ## How did search popularity change for United Kingdom shampoo brands in September 2026? - 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. - Estimated monthly branded searches for K18 in the United Kingdom fell 18.2% over 12 measured months, from 60.5K to 49.5K in September 2026. ## Month by month | Month | K18 estimated searches | K18 Share of Search | K18 rank | TRESemmé estimated searches | TRESemmé Share of Search | TRESemmé rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 60.5K | 18.2% | 2 | 8.1K | 2.4% | 10 | | Nov 2025 | 74K | 16.8% | 3 | 8.1K | 1.8% | 10 | | Dec 2025 | 60.5K | 16.3% | 3 | 6.6K | 1.8% | 11 | | Jan 2026 | 60.5K | 17.2% | 2 | 8.1K | 2.3% | 10 | | Feb 2026 | 49.5K | 16.8% | 2 | 6.6K | 2.2% | 12 | | Mar 2026 | 49.5K | 15.7% | 3 | 6.6K | 2.1% | 12 | | Apr 2026 | 49.5K | 17.5% | 2 | 6.6K | 2.3% | 12 | | May 2026 | 40.5K | 14.1% | 3 | 8.1K | 2.8% | 11 | | Jun 2026 | 40.5K | 14.4% | 3 | 9.9K | 3.5% | 9 | | Jul 2026 | 40.5K | 14.8% | 2 | 9.9K | 3.6% | 9 | | Aug 2026 | 49.5K | 16.8% | 2 | 8.1K | 2.8% | 11 | | Sep 2026 | 49.5K | 16.6% | 2 | 9.9K | 3.3% | 9 | ## How each brand is measured Brandwave collects information about searches that people make online using K18’s and TRESemmé’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. - **K18**: Measured on the search term “k18”. - **TRESemmé**: Measured on the search term “tresemme”. - [K18 profile](/demand/uk/brands/k18-hair) - [TRESemmé profile](/demand/uk/brands/tresemme) - [All shampoo brands in the United Kingdom](/demand/uk/categories/uk-shampoo-brands): The set both shares are measured inside, 15 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is K18 or TRESemmé more popular in search? In September 2026, K18 had more branded searches than TRESemmé among shampoo brands in the United Kingdom. K18 had about 49,500 branded searches, while TRESemmé had 9,900. K18 made up 16.6% of all shampoo brand searches we track, and TRESemmé accounted for 3.3%. ## Cite this page Brandwave. "K18 vs TRESemmé: Which is searched more in the United Kingdom?". https://gobrandwave.com/demand/uk/compare/k18-hair-vs-tresemme This page is also available as HTML at https://gobrandwave.com/demand/uk/compare/k18-hair-vs-tresemme. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.