--- title: "Sunday Riley vs The Ordinary: Which is searched more?" description: "Is Sunday Riley or The Ordinary 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/sunday-riley-vs-the-ordinary-skincare" publisher: "Brandwave" --- # Sunday Riley vs The Ordinary: Which is searched more? Is Sunday Riley or The Ordinary 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**: Sunday Riley and The Ordinary - **Competitive set**: Vitamin C serum brands - **Market**: Global - **Month measured**: Sep 2026 - **Sunday Riley Share of Search**: 0.9% - **The Ordinary Share of Search**: 6.8% ## Is Sunday Riley or The Ordinary more popular in search? - In September 2026, The Ordinary had more branded searches than Sunday Riley among vitamin C serum brands worldwide. The Ordinary had about 18,100 branded searches, while Sunday Riley had 2,400. The Ordinary made up 6.8% of all vitamin C serum brand searches we track, and Sunday Riley accounted for 0.9%. - The Ordinary was ahead of Sunday Riley in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Sunday Riley’s share of searches among vitamin C serum brands worldwide moved from 1.2% to 0.9%, and its estimated monthly branded searches moved from 2.9K to 2.4K. - Across the 12 months ending September 2026, The Ordinary’s share of searches among vitamin C serum brands worldwide moved from 7.4% to 6.8%, and its estimated monthly branded searches held steady at 18.1K. ## Top vitamin C serum brands in ChatGPT and Google AI Overviews In three ChatGPT questions and one Google AI Overview, Sunday Riley was mentioned in one out of four: not in any of the three ChatGPT answers, but in the Google AI Overview. The Ordinary 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, Sunday Riley rose from 12th to 11th among vitamin C serum brands worldwide. ## Month by month | Month | Sunday Riley estimated searches | Sunday Riley Share of Search | Sunday Riley rank | The Ordinary estimated searches | The Ordinary Share of Search | The Ordinary rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 2.9K | 1.2% | 12 | 18.1K | 7.4% | 5 | | Nov 2025 | 3.6K | 1.2% | 11 | 22.2K | 7.4% | 4 | | Dec 2025 | 3.6K | 1.4% | 11 | 18.1K | 7.1% | 4 | | Jan 2026 | 2.9K | 1% | 12 | 22.2K | 7.7% | 5 | | Feb 2026 | 2.4K | 0.88% | 12 | 22.2K | 8.1% | 5 | | Mar 2026 | 2.9K | 0.89% | 12 | 22.2K | 6.8% | 5 | | Apr 2026 | 2.4K | 0.73% | 12 | 22.2K | 6.7% | 5 | | May 2026 | 2.4K | 0.79% | 12 | 22.2K | 7.3% | 5 | | Jun 2026 | 1.9K | 0.68% | 12 | 18.1K | 6.5% | 4 | | Jul 2026 | 1.9K | 0.69% | 12 | 18.1K | 6.5% | 4 | | Aug 2026 | 2.4K | 0.86% | 12 | 18.1K | 6.5% | 4 | | Sep 2026 | 2.4K | 0.9% | 11 | 18.1K | 6.8% | 5 | ## How each brand is measured Brandwave collects information about searches that people make online using Sunday Riley’s and The Ordinary’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. - **Sunday Riley**: Measured on the search term “sunday riley ceo”. - **The Ordinary**: Measured on the search term “the ordinary vitamin c”. - [Sunday Riley profile](/demand/global-en/brands/sunday-riley) - [The Ordinary profile](/demand/global-en/brands/the-ordinary-skincare) - [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 Sunday Riley or The Ordinary more popular in search? In September 2026, The Ordinary had more branded searches than Sunday Riley among vitamin C serum brands worldwide. The Ordinary had about 18,100 branded searches, while Sunday Riley had 2,400. The Ordinary made up 6.8% of all vitamin C serum brand searches we track, and Sunday Riley accounted for 0.9%. ## Cite this page Brandwave. "Sunday Riley vs The Ordinary: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/sunday-riley-vs-the-ordinary-skincare This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/sunday-riley-vs-the-ordinary-skincare. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.