Proven in 6 Published University Studies.
Live Fit. In 2005, vitamin industry entrepreneurs created Celsius. Also known as an ascorbic acid, vitamin C is an essential nutrient that aids the immune system and helps with tissue repair and the enzymatic production of certain neurotransmitters. Celsius proprietary MetaPlus formula, including green tea with EGCG, ginger and guarana seed, turns on thermogenesis, a process that boosts your body's metabolism rate.