Hybrid Brow Dye Starter KitProfessional Hybrid Dye System for Brow Artists The London Brow Hybrid Dye Starter Kit is a complete professional system designed for qualified brow artists who want the intensity of a skin stain with the speed, control, and ease of a tint all in one advanced formulation. This hybrid system allows you to achieve anything from a soft, natural stain to a bold, defined finish, without the need for multiple tint brands or patch testing systems. Results