Minoxidil is a vasodilator medication that allows more blood, oxygen, and nutrients to the hair follicle. It is an over-the-counter medication applied topically or ingested orally. Minoxidil may be used by men or women and must be used indefinitely to support existing hair follicles and maintain any regrowth.
Finasteride is a prescription medication which reduces the production of testosterone and dihydrotestosterone (DHT), which is one of the causes of hair loss. Finasteride is only prescribed for men. Laser phototherapy targets hair follicles at a cellular level, providing light energy to kick start cells into working again after DHT has shut them down.