Regaine Men Extra Strength Scalp 5% Cutaneous Foam 3 Bottles. Regaine For Men Extra Stregth Scalp Foam is clinically proven to reverse the progression of hereditary hair loss in men. Regaine Foam is easy to apply and dries quickly. It works by increasing the blood supply to the hair follicles, which helps to strengthen existing hair and stimulate secondary hair growth. Easy to use. Extra strength treatment. Reverses hair loss and promotes re-growth. For those suffering from hereditary hair loss. Apply directly to the scalp - twice a day, every day.