Firefly Tonics is an English producer of fruit juice drinks with added herbal extracts. The range includes a number of functional drinks that feature botanical extracts such as Green Tea, Dandelion, Nettle, Yerba Maté and Kola Nut mixed with fruit juices. 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 UK-based herbalists, Michael McIntyre and Andrew Chevallier. The drink was launched with four variants, in Harvey Nichols, London in July 2003.