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Within-period significance in the combination does not establish a biochemical synergy or a treatment for alopecia.\nexposure: 14-day courses: oral biotin 5 mg/day, topical minoxidil 5%, or combination; 14-day washouts\nevidence_span: {\"source_cache\": \"artifacts/biotin-research/38688776.fulltext.txt\", \"locator\": \"Exact primary full-text span; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"3f46962f37ad560b79a91a05d587ca0be1e5d52089a581d8920771d84b884d2c\", \"start_char\": 4627, \"end_char\": 5539, \"text_sha256\": \"3ead95bf33780d055dc9d137b66ac1359683d0c8e1adc16e58c14d598ea42625\"}\n[b7-p38688776] Efficacy of 5% topical minoxidil versus 5 mg oral biotin versus topical minoxidil and oral biotin on hair growth in men: randomized, crossover, clinical trial. 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