Organic radicals are reactive, often short-lived species typically formed through either the addition of a chemical agent or photochemical means. On account of their open-shell electronic structure they have attracted attention based upon their magnetic properties and desirable spectroscopic behaviour. Redox sensitive molecules such as viologen (V) undergo one-electron reductions to form radical species. These species hold significant potential in myriad applications but are limited as they are rapidly quenched by oxygen in air. Using methyl viologen as an example, we show that the MV radical (MV+·) can be formed through electrochemical, chemical, photochemical and a novel thermal stimulus in various Deep Eu- tectic Solvents (DES) and was found to be exceptionally stable. The conductive properties of DES allowed for fabrication of an aerobic electrochromic device through a straightforward, economical approach. Our report represents a unique approach to extend reactive radical lifetimes in air without alteration of the parent structure.