About SIS Science in Sport

SIS (Science in Sport) is a world-leading performance nutrition brand built on a foundation of peer-reviewed research and real-world application. Trusted by elite athletes, sports professionals, and active individuals, SIS is dedicated to delivering scientifically-formulated products that optimise energy, hydration, recovery, and overall performance. Whether training for a marathon or pursuing personal fitness goals, SIS provides precise, reliable nutrition engineered to push limits and achieve results without compromise.

SIS is defined by innovation, purity, and athlete-centric design. Their products are developed in collaboration with sports scientists and nutritionists, utilising high-quality, tested-for-sport ingredients that are Informed-Sport certified, ensuring they are free from banned substances. From the pioneering GO Hydro and GO Energy electrolyte and carbohydrate range to advanced protein formulations like REGO Rapid Recovery, SIS offers a complete, synergistic system that supports every phase of athletic endeavour.

Organic Bargains Promise

At Organic Bargains, we believe in delivering elite-level performance and uncompromised quality straight to your training. That’s why we partner directly with SIS to provide you with authentic, fresh, and batch-trusted formulations. Rest assured that every SIS product you purchase from us is genuine, carefully stored to preserve its nutritional efficacy, and sourced to fuel your performance with absolute confidence. Discover the SIS difference—cutting-edge sports science you can trust, from our shelves to your success.