BioGaia vs BLIS:Which is more popular?
In September 2026, BLIS had more branded searches than BioGaia among probiotic brands worldwide. BLIS had about 450,000 branded searches, while BioGaia had 368,000. BLIS made up 22.2% of all probiotic brand searches we track, and BioGaia accounted for 18.1%. When we asked ChatGPT and Google AI Overviews about probiotic brands, neither BioGaia nor BLIS appeared in any of the five answers.
Who do people search for more?
BLIS, about 22% more searches than BioGaia
Who does AI mention more?
Both were mentioned in 0 of 5 answers.
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Top probiotic brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, neither BioGaia nor BLIS showed up in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Florastor3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Align3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Culturelle3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Garden of Life1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Yakult0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers- BLIS0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
BioGaia0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Blackmores0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Seed0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Radiance0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about probiotic brands
5 answers
Asked ChatGPT
“Which probiotic brand should I buy?”
Asked ChatGPT
“What are the best probiotic brands?”
Asked ChatGPT
“What's the best probiotic brand for gut health?”
Searched Google, AI Overview
“probiotic for gut health”
Searched Google, AI Overview
“probiotic supplements”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is BioGaia or BLIS more popular in search?
This chart shows how often people search Google for BioGaia and BLIS by name. Each line represents a brand's share of searches for all 12 probiotic brands we track, month by month, from English-language searches worldwide.
Share of searches by month for BLIS, BioGaia. The figures are in the table below the chart.
View monthly share of searches table
| Month | Yakult | BLIS | BioGaia | Blackmores | Seed | Florastor | Radiance | Align | Culturelle | Garden of Life | Bio-Kult | Optibac |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 31% | 20.7% | 16.9% | 7.6% | 4.8% | 4.2% | 5.1% | 2.8% | 2.3% | 2.3% | 1.5% | 0.83% |
| Nov 2025 | 28.1% | 23% | 15.4% | 8.4% | 5.2% | 3.8% | 5.6% | 3.1% | 2.5% | 2.5% | 1.4% | 0.92% |
| Dec 2025 | 24.3% | 24.3% | 16.3% | 8.9% | 4.7% | 4.9% | 6% | 3.3% | 2.7% | 2.2% | 1.5% | 0.98% |
| Jan 2026 | 24.5% | 24.5% | 16.4% | 7.4% | 5.6% | 4% | 6% | 3.3% | 3.3% | 2.2% | 1.5% | 1.2% |
| Feb 2026 | 29.2% | 19.5% | 16% | 7.2% | 5.5% | 4.8% | 5.8% | 3.9% | 3.2% | 2.2% | 1.4% | 1.2% |
| Mar 2026 | 30.8% | 20.6% | 13.8% | 7.5% | 5.8% | 5% | 5% | 3.4% | 3.4% | 2.3% | 1.5% | 1% |
| Apr 2026 | 31.4% | 21% | 14% | 9.4% | 5% | 4.2% | 5.1% | 2.8% | 2.8% | 1.9% | 1.3% | 1% |
| May 2026 | 32% | 21.4% | 14.3% | 7.8% | 5.2% | 4.3% | 5.2% | 2.9% | 2.9% | 1.9% | 1.3% | 0.86% |
| Jun 2026 | 29.6% | 19.8% | 16.2% | 8.9% | 5.8% | 4.9% | 4.9% | 3.3% | 2.7% | 1.8% | 1.2% | 0.97% |
| Jul 2026 | 26.9% | 22% | 18% | 9.8% | 5.3% | 4.4% | 4.4% | 3% | 2.4% | 1.6% | 1.1% | 0.89% |
| Aug 2026 | 27.1% | 22.2% | 18.1% | 9.9% | 5.3% | 4.5% | 4.5% | 3% | 2% | 1.6% | 1.1% | 0.89% |
| Sep 2026 | 27.1% | 22.2% | 18.1% | 9.9% | 5.2% | 4.5% | 4.5% | 3% | 2% | 1.6% | 1.1% | 0.89% |
How has the BioGaia and BLIS comparison changed over the last 12 months?
3 findings
- BLIS was ahead of BioGaia in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, BioGaia’s share of searches among probiotic brands worldwide moved from 16.9% to 18.1%, and its estimated monthly branded searches held steady at 368K.
- Across the 12 months ending September 2026, BLIS’s share of searches among probiotic brands worldwide moved from 20.7% to 22.2%, and its estimated monthly branded searches held steady at 450K.
How did search popularity change for probiotic brands worldwide in September 2026?
2 changes
BLIS’s share of searches among probiotic brands worldwide has gained ground for 3 months in a row, from 19.8% to 22.2% in September 2026.
BioGaia’s share of searches among probiotic brands worldwide has gained ground for 3 months in a row, from 16.2% to 18.1% in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using BioGaia’s and BLIS’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.
Other head-to-heads among probiotic brands
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