Known as a breakthrough in hair loss treatment, the Grande HAIR Stimulating Laser Comb uses only the most advanced low-level laser and Hi-tech LED technology to stimulate cell metabolism. This comb will reduce harmful effects of DHT, which deprives hair follicles of the necessary nutrients they need to survive, and also help new hair growth. The process this comb will help you go through is known as photobiostimulation, or PBS. This will lead to an increase in ATP and protein synthesis, improve cell proliferation, change in cell membrane permeability, and increase blood circulation. This comb will help treat hair loss, and is cleared by the FDA, showing positive effects and results in its clinical trials. This product is safe and useful for both men and women, has no side effects, and is not painful. The Grande HAIR-Laser Hair Comb is handheld and portable, and will help achieve fuller, thicker, healthier hair. For even greater results, use with GrandeHAIR serum, shampoo, and conditioner.