WHAT IS ? BULK POWDERS™, part of our Pure Series™ range, is the purest powder available, & at a price that puts other brands to shame. is one of the most popular products in the Pure Series™ range. Its popularity stems from the fact that is the most abundant amino acid found in muscle tissue. is a conditionally essential amino acid; this means that during specific periods (such as exercising) the body uses more that is being synthesised. BENEFITS OF Pure pharmaceutical