Provillus is composed of natural ingredients and is void of any chemicals or harmful substances. In addition, they can be bought without a prescription. No large side effects were reported with Provillus. Other benefits include quick results (usually within a few weeks), conveniently available online at discount prices, and offers benefits for both men and women. Provillus for men and women Another main benefit is to Provillus works well for men and women, but in slightly different ways. For men, of course Provillus blocks the male hormone called DHT (dihydrotestostrone). This hormone is the cause of hair loss in many cases, because the causes hair follicles to become thinner and finer over time until the hair is completely lost.