Q: Scalp Med is supposed to unclog pores. How does this prevent hair loss? — O.P., Trenton, NJ

A: The active ingredient of Scalp Med is Minoxidil, which will help reverse miniaturization, the process that causes androgenetic hair loss. Hair loss is not caused by clogged pores, so unclogging them will not prevent going bald. Minoxidil, which is also the active ingredient in Rogaine, is over-the-counter so it is a less expensive way to use the active ingredient.