Caffeine can help with hair loss from aging, especially androgenetic alopecia (AGA), by functioning in two ways. First, caffeine promotes hair growth by increasing certain molecules in the body that stimulate follicle growth. It also blocks the effects a sex hormone called DHT which is known to shrink follicles. With both of these effects, caffeine can make hair grow thicker and faster.


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Hair growth



Stimulates Follicles

Blocks DHT

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The role of hair follicles in the percutaneous absorption of caffeine. Wiley View
Effect of caffeine and testosterone on the proliferation of human hair follicles in vitro. Wiley View
Differential effects of caffeine on hair shaft elongation, matrix and outer root sheath keratinocyte proliferation, and transforming growth factor‐β2/insulin‐like growth factor‐1‐mediated regulation of the hair cycle in male and female human hair follicles in vitro. Wiley View