Pump Addict SF (Pump Addict Stim-Free) is perfect for coffee lovers or for those who like to work out late. When you don't need caffeine ... but want an intense muscle pump! SF has two key vasodilators (Citrulline and Agmatine) that increase blood flow, as well as the delivery of nutrients and oxygen to the muscle, but one of the other key ingredients that make it an amazing preworkout is adding sea salt. from the Himalayas and potassium.
