Sample data. The brands shown are placeholders used to build the site. The first real edition is in progress.

AI Shelf Index · Sample edition

Which hair-growth serum and topical brands AI assistants recommend

Serum Sample B is the most recommended hair-growth serum and topical brand across the assistants we track, named in 75% of brand-carrying answers on average.

Google AI Mode names a brand in 91% of its answers, the lowest of the 6 assistants.

600 answers to generic shopping questions. How we measure.

How AI assistants recommend Hair-growth serums and topicals

Sample data · fictional brands
BrandShare of recommendations (± margin of error)RankTier
Serum Sample B
75%± 4
#1tied
Leader
Serum Sample G
72%± 4
#1tied
Leader
Serum Sample D
62%± 4
#3
Contender
Serum Sample A
53%± 4
#4tied
Contender
Serum Sample F
51%± 4
#4tied
Contender
#1Serum Sample BLeader
75% ± 4Tied for #1
#1Serum Sample GLeader
72% ± 4Tied for #1
#3Serum Sample DContender
62% ± 4
#4Serum Sample AContender
53% ± 4Tied for #4
#4Serum Sample FContender
51% ± 4Tied for #4
Share, lower boundMargin of error

Based on ~780 AI answers from 6 assistants, sample edition. Brands whose margins of error overlap share a rank.

By assistant

ChatGPT
#BrandVisibility
1Serum Sample G72%
2Serum Sample D68%
3Serum Sample B68%
4Serum Sample A55%
5Serum Sample F54%

100 answers · brand named in 96% · consumer app

Gemini
#BrandVisibility
1Serum Sample B78%
2Serum Sample G75%
3Serum Sample E74%
4Serum Sample D56%
5Serum Sample A52%

100 answers · brand named in 93% · consumer app

Google AI Overviews
#BrandVisibility
1Serum Sample B81%
2Serum Sample G76%
3Serum Sample D71%
4Serum Sample A65%
5Serum Sample F59%

100 answers · brand named in 95% · consumer app

Google AI Mode
#BrandVisibility
1Serum Sample G77%
2Serum Sample B75%
3Serum Sample A65%
4Serum Sample F59%
5Serum Sample D59%

100 answers · brand named in 91% · consumer app

Perplexity
#BrandVisibility
1Serum Sample C85%
2Serum Sample H74%
3Serum Sample E73%
4Serum Sample B66%
5Serum Sample G56%

100 answers · brand named in 100% · consumer app

Microsoft Copilot
#BrandVisibility
1Serum Sample B80%
2Serum Sample G75%
3Serum Sample D65%
4Serum Sample A63%
5Serum Sample F58%

100 answers · brand named in 93% · consumer app

See where your brand ranks on the AI shelf