Norman Orentreich produced the initial and only long-term remedy to loss of hair, making him the genuine inventor of hair transplantation. He found that hair preserves its attributes even when taken from the donor area and implanted elsewhere on the scalp. This concept was called “benefactor supremacy” and also is what makes hair transplantation feasible. …
Estrogen’s role in human hair growth is not certain, the follicle itself has different receptor sites for estrogen, alpha and beta. The beta-receptor site is more common than the alpha and generally speaking, is the one responsible for the suppression of cellular functions in the human hair follicle. In vitro studies have been inconclusive and …