Propecia is a FDA approved drug for treating hair loss. It comes in a 1mg pill form and is available by prescription only for men for around $45-50 per month. Propecia grows hair in about 50% of men after one year and around 66% of men after two years. Overall, around 85% of men do not lose any more hair while using Propecia. The most common side effects are decreased sexual desire or lowered amount of ejaculate in less than 2% of men, although almost as many men who received the placebo experienced this as well.

Rogaine Extra Strength is an FDA approved treatment with a higher concentration of Minoxidil for treating hair loss. It comes in a 5% liquid solution and is available over-the-counter for men for around $29 per month. Rogaine Extra Strength claims to grow 45% more than the Regular Strength 2% formula. It also starts growing hair as soon as 2 months in many individuals. The most common side effects are scalp itch and irritation, which are rare.