It should be simple: the right combination of specifically targeted ingredients, in specifically chosen amounts, all blended together to produce a scientifically sound pump product. It should be, but it isn't. It is a good thing for consumers, then, that Core Nutritionals loves a challenge. With Core PUMP, we have accepted that difficult challenge and entered the non-stimulant, preworkout "pump" category with a fresh, innovative new entry. PUMP is expertly formulated, using the highest quality and cutting edge ingredients, to give you pumps so intense you will swear your skin is bursting!