--- title: "La Roche-Posay vs TruSkin: Which is searched more?" description: "Is La Roche-Posay or TruSkin more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Vitamin C serum brands set worldwide. 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/global-en/compare/la-roche-posay-vs-truskin" publisher: "Brandwave" --- # La Roche-Posay vs TruSkin: Which is searched more? Is La Roche-Posay or TruSkin more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Vitamin C serum brands set worldwide. 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**: La Roche-Posay and TruSkin - **Competitive set**: Vitamin C serum brands - **Market**: Global - **Month measured**: Sep 2026 - **La Roche-Posay Share of Search**: 6.8% - **TruSkin Share of Search**: 0.9% ## Is La Roche-Posay or TruSkin more popular in search? - In September 2026, La Roche-Posay had more branded searches than TruSkin among vitamin C serum brands worldwide. La Roche-Posay had about 18,100 branded searches, while TruSkin had 2,400. La Roche-Posay made up 6.8% of all vitamin C serum brand searches we track, and TruSkin accounted for 0.9%. - La Roche-Posay was ahead of TruSkin in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, La Roche-Posay’s share of searches among vitamin C serum brands worldwide moved from 9.1% to 6.8%, and its estimated monthly branded searches moved from 22.2K to 18.1K. - Across the 12 months ending September 2026, TruSkin’s share of searches among vitamin C serum brands worldwide moved from 1.8% to 0.9%, and its estimated monthly branded searches moved from 4.4K to 2.4K. ## Top vitamin C serum brands in ChatGPT and Google AI Overviews In three ChatGPT questions and one Google AI Overview, La Roche-Posay was mentioned in three out of four: in two of the three ChatGPT answers and in the Google AI Overview. TruSkin did not appear in any of the four 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 | | --- | --- | --- | --- | --- | | SkinCeuticals | 1st | 2 of 3 | 1 of 1 | 3 of 4 | | Timeless Skin Care | 2nd | 2 of 3 | 1 of 1 | 3 of 4 | | Naturium | 3rd | 1 of 3 | 1 of 1 | 2 of 4 | | CeraVe | 4th | 2 of 3 | 0 of 1 | 2 of 4 | | La Roche-Posay | 5th | 2 of 3 | 1 of 1 | 3 of 4 | | Paula's Choice | 6th | 1 of 3 | 0 of 1 | 1 of 4 | | Sunday Riley | 7th | 0 of 3 | 1 of 1 | 1 of 4 | | The Ordinary | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 | | Olay | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 | | Drunk Elephant | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 | | Maelove | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 | | TruSkin | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 | ## Every AI answer about vitamin C serum brands - Asked ChatGPT "Which vitamin C serum brand should I buy?": 1. CeraVe, 2. La Roche-Posay - Asked ChatGPT "What are the best vitamin C serum brands?": 1. SkinCeuticals, 2. Paula's Choice, 3. Timeless Skin Care, 4. La Roche-Posay, 5. CeraVe - Asked ChatGPT "What's the best vitamin C serum brand for dark spots?": 1. SkinCeuticals, 2. Naturium, 3. Timeless Skin Care - Searched Google, AI Overview "best vitamin c serum": 1. SkinCeuticals, 2. Timeless Skin Care, 3. Naturium, 4. Sunday Riley, 5. La Roche-Posay Not named in any answer: The Ordinary, Olay, Drunk Elephant, Maelove and TruSkin. Brands are listed in the order each answer named them. The answers were collected in the United States on October 22, 2026. ## How did search popularity change for vitamin C serum brands worldwide in September 2026? - In September 2026, CeraVe overtook La Roche-Posay and The Ordinary to rank 3rd among vitamin C serum brands worldwide, with 6.8% of the searches. - In September 2026, TruSkin fell from 11th to 12th among vitamin C serum brands worldwide. - Estimated monthly branded searches for La Roche-Posay worldwide fell 18.5% over 12 measured months, from 22.2K to 18.1K in September 2026. ## Month by month | Month | La Roche-Posay estimated searches | La Roche-Posay Share of Search | La Roche-Posay rank | TruSkin estimated searches | TruSkin Share of Search | TruSkin rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 22.2K | 9.1% | 3 | 4.4K | 1.8% | 11 | | Nov 2025 | 22.2K | 7.4% | 3 | 3.6K | 1.2% | 12 | | Dec 2025 | 22.2K | 8.8% | 3 | 2.9K | 1.1% | 12 | | Jan 2026 | 22.2K | 7.7% | 4 | 4.4K | 1.5% | 11 | | Feb 2026 | 22.2K | 8.1% | 4 | 4.4K | 1.6% | 11 | | Mar 2026 | 27.1K | 8.3% | 3 | 4.4K | 1.3% | 11 | | Apr 2026 | 27.1K | 8.2% | 4 | 4.4K | 1.3% | 11 | | May 2026 | 22.2K | 7.3% | 4 | 3.6K | 1.2% | 11 | | Jun 2026 | 18.1K | 6.5% | 3 | 2.9K | 1% | 11 | | Jul 2026 | 18.1K | 6.5% | 3 | 2.9K | 1% | 11 | | Aug 2026 | 18.1K | 6.5% | 3 | 2.9K | 1% | 11 | | Sep 2026 | 18.1K | 6.8% | 4 | 2.4K | 0.9% | 12 | ## How each brand is measured Brandwave collects information about searches that people make online using La Roche-Posay’s and TruSkin’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. - **La Roche-Posay**: Measured on the search term “la roche posay vitamin c”. - **TruSkin**: Measured on the search term “truskin vitamin c”. - [La Roche-Posay profile](/demand/global-en/brands/la-roche-posay) - [TruSkin profile](/demand/global-en/brands/truskin) - [All vitamin C serum brands worldwide](/demand/global-en/categories/vitamin-c-serum-brands): The set both shares are measured inside, 12 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 La Roche-Posay or TruSkin more popular in search? In September 2026, La Roche-Posay had more branded searches than TruSkin among vitamin C serum brands worldwide. La Roche-Posay had about 18,100 branded searches, while TruSkin had 2,400. La Roche-Posay made up 6.8% of all vitamin C serum brand searches we track, and TruSkin accounted for 0.9%. ## Cite this page Brandwave. "La Roche-Posay vs TruSkin: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/la-roche-posay-vs-truskin This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/la-roche-posay-vs-truskin. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.