A Tasty, Natural Fruit-Flavored Brain Food for Really Fast, Smooth, Clear-Headed Energy A Dietary Supplement Drink Mix FastBLAST is an energy-boosting Designer Food dietary supplement designed by Life Extension scientists Durk Pearson & Sandy Shaw for their own use. Start your day with tasty, natural fruit-flavored FastBLAST for fast and long-lasting energy. FastBLAST fires up your brain naturally and jump-starts your day. It contains important ingredients for making, activating and using noradrenaline, an important neurotransmitter*: L - phenylalanine (an essential amino acid) and its cofactors and other nutrients your brain needs to produce noradrenaline, and Caffeine, which helps to release noradrenaline and increase sensitivity to its effects. FastBLAST also works to help provide appetite satisfaction.* It contains only 52 calories per serving, about the same as 1/2 glass of skim milk. * Normal and natural, noradrenaline is needed by some of your nerve cells to transmit information to one another.