MX 5% Topical Solution belongs to a class of drugs known as vasodilators. It is used to promote hair growth in men with male pattern baldness. MX 5 Topical Solution is a medicine used to treat common hereditary hair loss. It can prevent further hair loss and help hair to re-grow. It works by increasing blood flow to the hair follicles on your scalp, which prevents hair cell death and also enhances new hair growth. It is most effective for baldness or thinning at the top of the scalp but less effective at the front or for receding hairline. The first growth may be soft, colorless, and barely visible. Using more than recommended will not speed up hair growth and may increase the likelihood of side effects. This medication must be used continuously to maintain hair growth. Tell your doctor if your condition does not improve or worsen after using it for 4 to 6 months.