--- title: "Hair serum brands: Which brands are most popular in search?" description: "Compare the hair treatment brands people buy. Share of Search among Kérastase, Olaplex, Moroccanoil, Redken and K18, the hair serum brands Brandwave compares worldwide, using the same methodology, market, and reporting period. 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/categories/hair-serum-brands" publisher: "Brandwave" --- # Hair serum brands: Which brands are most popular in search? Compare the hair treatment brands people buy. Share of Search among Kérastase, Olaplex, Moroccanoil, Redken and K18, the hair serum brands Brandwave compares worldwide, using the same methodology, market, and reporting period. 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 - **Competitive set**: Hair serum brands - **Market**: Global - **Brands compared**: 5 - **Month measured**: Aug 2026 - **Highest Share of Search**: Kérastase, 58.4% ## Which brand is most popular in search among hair serum brands worldwide? - In August 2026, Kérastase was the most searched among hair serum brands worldwide, with an estimated 1.8M branded searches and 58.4% estimated Share of Search within this set. - Olaplex is in 2nd place, 40.9 percentage points behind at 17.6% Share of Search. - Across the 11 months ending August 2026, Kérastase’s estimated Share of Search among hair serum brands worldwide increased from 51.3% to 58.4%. - Across the 11 months ending August 2026, Olaplex’s estimated Share of Search among hair serum brands worldwide decreased from 23% to 17.6%. - Across the 11 months ending August 2026, Moroccanoil’s estimated Share of Search among hair serum brands worldwide decreased from 15.4% to 14.4%. - Across the 11 months ending August 2026, Redken’s estimated Share of Search among hair serum brands worldwide decreased from 10.3% to 9.6%. - Across the 11 months ending August 2026, Kérastase’s estimated Share of Search among hair serum brands worldwide peaked at 60% in July 2026 and was lowest at 49.6% in May 2026. - Across the 11 months ending August 2026, Olaplex’s estimated Share of Search among hair serum brands worldwide peaked at 23.7% in April 2026 and was lowest at 17.6% in August 2026. - Across the 11 months ending August 2026, Moroccanoil’s estimated Share of Search among hair serum brands worldwide peaked at 18.2% in May 2026 and was lowest at 12.1% in July 2026. - Across the 11 months ending August 2026, Redken’s estimated Share of Search among hair serum brands worldwide peaked at 11.1% in March 2026 and was lowest at 9.2% in November 2025. - Across the 11 months ending August 2026, K18 held steady: its estimated Share of Search among hair serum brands worldwide moved less than 0.5 percentage points. ## Compare search popularity between leading brands - [Kérastase vs Olaplex: compare search popularity](/demand/global-en/compare/kerastase-vs-olaplex): 58.4% against 17.6% Share of Search. - [Kérastase vs Moroccanoil: compare search popularity](/demand/global-en/compare/kerastase-vs-moroccanoil): 58.4% against 14.4% Share of Search. - [Kérastase vs Redken: compare search popularity](/demand/global-en/compare/kerastase-vs-redken): 58.4% against 9.6% Share of Search. - [Olaplex vs Moroccanoil: compare search popularity](/demand/global-en/compare/moroccanoil-vs-olaplex): 17.6% against 14.4% Share of Search. - [Olaplex vs Redken: compare search popularity](/demand/global-en/compare/olaplex-vs-redken): 17.6% against 9.6% Share of Search. - [Moroccanoil vs Redken: compare search popularity](/demand/global-en/compare/moroccanoil-vs-redken): 14.4% against 9.6% Share of Search. ## How did search popularity change for hair serum brands worldwide in August 2026? - In August 2026, Moroccanoil gained estimated Share of Search among hair serum brands worldwide, from 12.1% to 14.4%. - In August 2026, Kérastase lost estimated Share of Search among hair serum brands worldwide, from 60% to 58.4%. - Olaplex’s estimated Share of Search among hair serum brands worldwide has lost ground for 3 months in a row, from 22.3% to 17.6% in August 2026. - Estimated monthly branded searches for K18 worldwide fell 18.6% over 11 measured months, from 590 to 480 in August 2026. ## Share of Search ranking | Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by | | --- | --- | --- | --- | --- | --- | | 1 | Kérastase | 58.4% | 1.8M | 0.0% | Kérastase | | 2 | Olaplex | 17.6% | 550K | 0.0% | Olaplex | | 3 | Moroccanoil | 14.4% | 450K | +22.3% | Moroccanoil | | 4 | Redken | 9.6% | 301K | 0.0% | Redken | | 5 | K18 | 0.02% | 480 | 0.0% | K18 | ## Historical estimated branded-search demand | Month | Brand | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | Kérastase | 1.5M | 51.3% | 1 | | Oct 2025 | Olaplex | 673K | 23% | 2 | | Oct 2025 | Moroccanoil | 450K | 15.4% | 3 | | Oct 2025 | Redken | 301K | 10.3% | 4 | | Oct 2025 | K18 | 590 | 0.02% | 5 | | Nov 2025 | Kérastase | 2.2M | 56.3% | 1 | | Nov 2025 | Olaplex | 823K | 20.7% | 2 | | Nov 2025 | Moroccanoil | 550K | 13.8% | 3 | | Nov 2025 | Redken | 368K | 9.2% | 4 | | Nov 2025 | K18 | 720 | 0.02% | 5 | | Dec 2025 | Kérastase | 1.8M | 51.2% | 1 | | Dec 2025 | Olaplex | 823K | 23% | 2 | | Dec 2025 | Moroccanoil | 550K | 15.4% | 3 | | Dec 2025 | Redken | 368K | 10.3% | 4 | | Dec 2025 | K18 | 480 | 0.01% | 5 | | Jan 2026 | Kérastase | 1.8M | 55.1% | 1 | | Jan 2026 | Olaplex | 673K | 20.3% | 2 | | Jan 2026 | Moroccanoil | 450K | 13.5% | 3 | | Jan 2026 | Redken | 368K | 11.1% | 4 | | Jan 2026 | K18 | 590 | 0.02% | 5 | | Feb 2026 | Kérastase | 1.5M | 55.2% | 1 | | Feb 2026 | Olaplex | 550K | 20.2% | 2 | | Feb 2026 | Moroccanoil | 368K | 13.5% | 3 | | Feb 2026 | Redken | 301K | 11.1% | 4 | | Feb 2026 | K18 | 480 | 0.02% | 5 | | Mar 2026 | Kérastase | 1.8M | 55.1% | 1 | | Mar 2026 | Olaplex | 673K | 20.3% | 2 | | Mar 2026 | Moroccanoil | 450K | 13.5% | 3 | | Mar 2026 | Redken | 368K | 11.1% | 4 | | Mar 2026 | K18 | 480 | 0.01% | 5 | | Apr 2026 | Kérastase | 1.5M | 52.8% | 1 | | Apr 2026 | Olaplex | 673K | 23.7% | 2 | | Apr 2026 | Moroccanoil | 368K | 12.9% | 3 | | Apr 2026 | Redken | 301K | 10.6% | 4 | | Apr 2026 | K18 | 480 | 0.02% | 5 | | May 2026 | Kérastase | 1.5M | 49.6% | 1 | | May 2026 | Olaplex | 673K | 22.3% | 2 | | May 2026 | Moroccanoil | 550K | 18.2% | 3 | | May 2026 | Redken | 301K | 10% | 4 | | May 2026 | K18 | 480 | 0.02% | 5 | | Jun 2026 | Kérastase | 1.5M | 55.2% | 1 | | Jun 2026 | Olaplex | 550K | 20.2% | 2 | | Jun 2026 | Moroccanoil | 368K | 13.5% | 3 | | Jun 2026 | Redken | 301K | 11.1% | 4 | | Jun 2026 | K18 | 390 | 0.01% | 5 | | Jul 2026 | Kérastase | 1.8M | 60% | 1 | | Jul 2026 | Olaplex | 550K | 18% | 2 | | Jul 2026 | Moroccanoil | 368K | 12.1% | 3 | | Jul 2026 | Redken | 301K | 9.9% | 4 | | Jul 2026 | K18 | 480 | 0.02% | 5 | | Aug 2026 | Kérastase | 1.8M | 58.4% | 1 | | Aug 2026 | Olaplex | 550K | 17.6% | 2 | | Aug 2026 | Moroccanoil | 450K | 14.4% | 3 | | Aug 2026 | Redken | 301K | 9.6% | 4 | | Aug 2026 | K18 | 480 | 0.02% | 5 | | Sep 2026 | K18 | — | — | — | | Sep 2026 | Kérastase | — | — | — | | Sep 2026 | Moroccanoil | — | — | — | | Sep 2026 | Olaplex | — | — | — | | Sep 2026 | Redken | — | — | — | ## What is being compared - **K18**: Measured on the search term “k18 nz”. - **Kérastase**: Measured on the search term “kerastase”. - **Moroccanoil**: Measured on the search term “moroccanoil”. - **Olaplex**: Measured on the search term “olaplex”. - **Redken**: Measured on the search term “redken”. - [K18](/demand/global-en/brands/k18-hair) - [Kérastase](/demand/global-en/brands/kerastase) - [Moroccanoil](/demand/global-en/brands/moroccanoil) - [Olaplex](/demand/global-en/brands/olaplex) - [Redken](/demand/global-en/brands/redken) ## Methodology - [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Which brand is most popular in search among hair serum brands worldwide? In August 2026, Kérastase was the most searched among hair serum brands worldwide, with an estimated 1.8M branded searches and 58.4% estimated Share of Search within this set. These are worldwide searches for English-language branded terms. ## Cite this page Brandwave. "Hair serum brands: Which brands are most popular in search?". https://gobrandwave.com/demand/global-en/categories/hair-serum-brands This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/hair-serum-brands. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.