Fox Labs Mean Green Pepper Spray features a searing 3 000 000 SHU formula at 6% concentration provides 180 000 SHU out the nozzle and 1.2% total capsaicinoids and a fast-acting formula. Mean Green is also non-flammable and safe to use with tasers or other stun devices and has a bright green dye to mark the offender for easy identification by police or sheriff officers. The dye has a vegetable-base and is safe for human use.