Hair loss and thinning hair have been sensitive issues for men throughout time. Recently, medical science has finally identified the main cause of hair loss. Now, it is a known medical fact that hair loss stems from both genetic and hormonal causes. Androgenetic Alopecia or “male pattern hair loss” is implicated in 95% of hair loss cases. The key is a hormonal byproduct called DHT (dihydrotestostrone). The more DHT that gets put into your body, the more your hair follicles become thinner and finer until the hair is permanently lost.