I've had problems with traction alopecia for years, resulting from hairstyles that are too tight or over grooming. My hair is most vulnerable in the mid back area. It usually takes a few months to start seeing any growth after the initial trauma to my hair follicles. This last time, however, the growth was even slower, and several months later it's as if I had made no progress. It seems that whatever growth occurred was brittle and breaking. I tried a certain popular hair supplement to see if it...