Keep yourself safe anywhere you go at any time with the Full Size Pepper Spray by Mace. Mace Brand Personal Pepper Spray is a formulation of Oleoresin Capsicum (OC) a natural ingredient derived from hot peppers as well as UV detection dye. Upon direct facial contact OC Pepper causes eyes to slam shut coughing and an intense burning sensation to the skin with extreme discomfort of vision and the respiratory system, hindering attackers while marking them for identification.