Choose a gentle shampoo you tolerate, and select a medicated shampoo for a diagnosed scalp condition using its local leaflet. Trials report formulation-specific findings for shedding or retention, not proof that any ingredient-labelled bottle regrows hair. Follow the product's own instructions and seek assessment for unexplained or worsening thinning.
Treatments & what works
From minoxidil to microneedling, we compare the options by the strength of the evidence behind them, so you can have a better-informed conversation with your doctor.
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Caffeine shampoo has limited human evidence, including one controlled trial of a phyto-caffeine formula in women that measured hairs removed by a pull test. A separate leave-on trial in men and laboratory absorption findings do not establish regrowth from a rinse-off shampoo. Follow the product directions and seek assessment for unexplained or worsening thinning rather than waiting for a shampoo to solve it.
Hair growth serums include conditioning products, cosmetic scalp formulas and medicinal topicals with different purposes. Match each claim to the tested formula, population and measured outcome. Ingredient or laboratory findings do not establish what every finished serum will do, and unexplained or worsening loss deserves assessment.
Red clover offers a natural way to support hair growth by targeting DHT, a key factor in thinning. This guide explores its benefits, science, and practical use for real results.