Actives: Rosemary oil
Rosmarinus officinalis leaf oil and extract in hair-growth products, and the one trial behind the hype.
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C Plausible, thin evidence
Rosemary oil vs minoxidil: what the one trial really showed, and four ‘hair growth’ bottles graded
‘Rosemary oil works as well as minoxidil’ traces back to a single 100-person trial with no placebo group, against the weaker 2% strength. We…