At Science in Sport they are dedicated to developing the best sports nutrition products to help endurance athletes perform at their best. Their range includes award winning gels, powders, bars and supplements, used by elite athletes around the world. SiS REGO Protein powder is part of the protein kinetics system, which utilizes the absorption characteristics of different proteins in order to maximize training gains. Key Features: Ideal as a daytime muscle growth complex or as a pre-workout protein boost. Taken between meals, SiS REGO Protein powder helps increase protein turnover throughout the day and so maximises training gains. Science in Sport has identified specific protein fragments that have different kinetic profiles, and incorporated them into this product. Do not take SiS REGO Protein powder prior to bed time. Available in Chocolate and Strawberry flavours. Box of 15 40g sachets. Please note: Previously known as Build.