Performix SST Burn is a non stimulant pure L Carnitine fat burner that uses fat, not muscle, to fuel your workout. Take SST Burn alongside SST, SST V2X or the new SST Cuts Performix SST v2X GNC Amazon.com: PERFORMIX SST Boost L Carnitina lquida Energa de accin rpida, mejora la memoria y la concentracin, frmula sin estimulantes para hombres y mujeres, sabor a bayas de hielo, 31 porciones : Performix puts 300mg of caffeine into SST Energy Seltzer with no calories