Men’s Rogaine Extra Strength Solution is the liquid version of our top pick. It didn’t make our final cut because it includes propylene glycol, which causes irritation in roughly one-third of its users. With that said, Dr. Wolfeld finds that it can be even more effective in practical daily use. In his experience, “the solution can penetrate and get into your scalp a little bit better” than the foam — especially if you’re not taking the time and effort to apply the foam correctly. This seems crazy to us since the foam so quickly dissolved into a liquid in our tests, but if you’re worried, try a one-month supply of the liquid and make the switch to foam if you notice any irritation.
"There's never been a single study to show they work," Bernstein says of the alternative remedies. "It's conceivable that some might have some minor impact. But the real problem is that people waste valuable time experimenting with them when they'd be much better off spending their money on something proven to work. The window for Propecia passes, and if you've spent two years with this herbal thing instead, that can make a big difference in the results you ultimately get."
Viviscal is a natural hair-growth supplement that promotes hair growth in people with thinning hair. It contains a marine complex known as AminoMar C. This is made of minerals, vitamins, and shark and mollusk powder. These ingredients help to regenerate new cells and strengthen existing cells. You have to take the pills twice a day for at least six months in order to see results. Viviscal also makes a shampoo and conditioner.