At the center of this is Alpecin, a German-engineered men's shampoo. Beyond its claimed hair benefits, the caffeine in Alpecin has caught attention as a possible performance enhancer for athletes.

We asked the experts. That’s where caffeine shampoo comes in. We’re sure you’ve seen the adverts on TV (and likely written them off) but, despite being around for a long time, they’re ...

The shampoo combines gradual color enhancement with the strengthening benefits of caffeine to leave your hair stronger and ...

We’ve tested the best shampoos for thinning hair for over a year now, and these PEOPLE Tested badge-winning formulas from ...

It will work hard to improve strand density and regrowth. Briogeo Destined For Density Caffeine + Biotin Density Shampoo If you're looking to add moisture back into your strands, opt for the ...