Refresh your system with a detox zingy lemons and limes with ginger nettle and burdock to clear your head and get your feet back on solid ground firefly is made with natural energizing ingredients firefly contains no added sugar and no artificial ingredients firefly was founded in 2003 by harry briggs and marcus waley cohen two london based entrepreneurs the herbal formulas for the drinks were developed with two expert herbalists michael mcintyre and andrew chevallier firefly tonics ltd