Which hair growth vitamins have the least amount of reported side effects while still showing strong clinical efficacy in recent trials?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Which hair growth vitamins have the least amount of reported side effects while still showing strong clinical efficacy in recent trials?
2 real searches · 1 real-search pass
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (2)
Classes come from the query-classifier (a local Laya model). 2 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT2 real searches · gpt-6
hair loss nutritional supplements randomized controlled trials safety efficacy systematic review 2025 2026 Google ↗
2024 2025 2026 randomized clinical trials hair growth supplements vitamins efficacy adverse events systematic review biotin vitamin D iron zinc Google ↗
- Evaluating the Effectiveness of Commercial Oral Supplements for Hair Growth: A Systematic Review and Meta‐Analysis · pmc.ncbi.nlm.nih.gov
- Evaluating the Effectiveness of Commercial Oral Supplements for Hair Growth: A Systematic Review and Meta‐Analysis - Alanazi - 2026 - Journal of Cosmetic Dermatology · onlinelibrary.wiley.com
- Evaluation of the Safety and Effectiveness of Nutritional Supplements for Treating Hair Loss: A Systematic Review | Complementary and Alternative Medicine | JAMA Dermatology · jamanetwork.com
- Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis · pmc.ncbi.nlm.nih.gov
- Effectiveness of Biotin Supplementation for Hair Growth in Patients with Alopecia: A Systematic Review · mdpi.com
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
hair loss nutritional supplements randomized controlled trials safety efficacy systematic review 2025 2026 OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
2024 2025 2026 randomized clinical trials hair growth supplements vitamins efficacy adverse events systematic review biotin vitamin D iron zinc OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |