50ml Carbon Dye for Laser and IPL Permanent Hair Removal Machines Carbon dye is used to increase the pigment in hair which helps laser and IPL radiation convert to heat. This heat is what cauterizes and thermally desiccates the hair follicle unit which permanently disables the organ (thereby preventing future hair growth). The use of carbon dye increases laser and IPL hair removal results by over 400% in clinical testing. 90 day, 100% satisfaction guarantee. From the experts at Bio-Avance, the world leader in Salon and Medispa Cosmetology Equipment, Accessories and Supplies. Chosen by more professional Aestheticians. YES, we ship FREE of charge (worldwide). YES, we service our customers. YES, we value your business. Looking for Laser, IPL, Electrolysis and professional skin care equipment? Visit my store. I carry them all at the BEST prices on the internet!