About this item. Contains Active Ingredient Minoxidil - Regaine for Men Extra Strength Solution contains Minoxidil which helps stop and even reverse men's hereditary hair loss. Minoxidil 5% works by increasing the supply of blood and nutrients to your hair follicles, strengthening the existing hairs and encouraging regrowth. Clinically Proven To Help Regrow Hair - Regaine solution contains Minoxidil and is the first and only scientifically proven otc active ingredient to help stop hair loss. It revitalises and stimulates hair follicles, working deep down at the root. 3/5 Men Reported Hair Regrowth Regaine for Men Extra Strength Solution is clinically proven to regrow hair in 3 out of 5 men after 48 weeks.