SHEDDING: Our hair naturally goes through growth and resting cycles. Each hair has its own cycle, and at any given time, a large % of follicles are "resting" while the remainder are "growing" as hair on the scalp. When Propecia enters the system, the sudden removal of DHT from the follicles can sometimes shock a large number of follicles to enter into the resting phase at the same time. Its known as a synchronization of the hair cycle. To the layman, it's frequently known as the "shedding sh*ts". Panic can set in as the person who sought to stop their hair loss, suddenly see's it get worse right before their eyes. The change is typically not noticeable to anyone but the one on the treatment, but its enough to cause many to freak out and lose their stability. We are here to inform you to NOT worry about shedding. If you are shedding, this means you are responding to the treatment. A larger number of hairs have entered into dormancy so that they can rest, and rejuvenate in 2 or 3 months free of any DHT affliction. It's as simple as that. Shedding rarely lasts more than 4 months, and typically results in a sudden "awakening" of large numbers of hairs.