SIS Science in Sport

Science in Sport – Performance Nutrition Fuelled by Science

Science in Sport (SiS) is the world’s leading performance nutrition brand — combining world-class scientific knowledge with expert formulation to deliver optimal solutions for energy, hydration, and recovery. 

Since 1992, SiS has supported Olympians, world-record holders, and elite athletes across endurance sports — from cycling and running to triathlon and team sports — helping them perform and recover with precision. 

Through an elite-level research and innovation program, SiS develops evidence-based formulas that truly impact performance. Their in-house science team works closely with elite athletes and institutions to ensure each product is refined, tested, and optimized — because real performance doesn’t happen in the lab, it happens on the field. 

Quality and safety are central to every SiS product. Every batch is externally tested and certified by the respected Informed Sport program — ensuring products are free from banned substances and meet rigorous quality standards trusted by professional athletes worldwide. 

Whether you’re a competitive athlete, endurance enthusiast, or dedicated fitness lover, SiS offers scientifically formulated energy gels, hydration mixes, recovery shakes, and nutrition products designed to fuel your performance — so you can push your limits with confidence.