How effective is it?
Two studies into Regaine for men, using a 5% solution of minoxidil, were conducted in Germany. Men in both studies applied the solution twice a day. One year-long study of 984 men with hereditary hair loss found the product to be very effective in 15.9% and effective in 47.8% of patients for stimulating hair growth.
The second study tested a 5% solution of minoxidil on 743 men with male hereditary hair loss. The study lasted for four months. It was rated by 7.5% of the men as very effective and 55% of the men as effective at stimulating hair growth. 74.2% of men also reported an increase in hair thickness.
Women with female pattern hair loss (also known as androgenetic alopecia) can use Regaine for women, a Minoxidil solution at a 2% concentration.
A 32-week study into the effectiveness of a 2% Minoxidil solution in treating female pattern hair loss reported positive results. 60% of the patients in the 2% minoxidil group reported new hair growth compared with 40% of the patients in the placebo group.