Do you suffer from hair loss? You're not alone. Hair loss is a common problem that affects both men and women. There are many different types of hair loss, and each has its own causes and treatment options. One type of hair loss is androgenetic alopecia, also known as male- or female-pattern baldness. This type of hair loss is caused by a by-product of testosterone called DHT. DHT binds to the hair follicles and eventually leads to thinning and then no hair growth at all.