Hair loss from stress, medication or some disease can be treated if the hair follicle has not been closed. The hair cycle is influenced by these conditions and sometimes hair loss may be noticeable after the factors. If the scalp is not shiny and smooth, hair follicles are still typically open and can be stimulated to regenerate hair growth. PRP uses the body’s own plasma to stimulate regrowth in the still existing follicles, it is applied by injection. Photodynamic Light Therapy is also effective at stimulating regrowth, if used to complement PRP, results may be enhanced.