Science in Sport (SiS) Go Isotonic Energy Gel

Science in Sport, commonly known as SiS, is a leading endurance nutrition company that designs, manufactures, and markets sports nutrition products for professional athletes and sports enthusiasts. Founded in 1992, the brand is highly regarded for its commitment to evidence-based science and quality control, being a frequent partner for elite cycling and football teams.

The brand's production is primarily centered in its state-of-the-art manufacturing facility in Blackburn, Lancashire, United Kingdom. By maintaining its own production site, the company ensures rigorous testing standards, including Informed Sport certification, which is critical for anti-doping compliance.

In terms of corporate structure, Science in Sport is part of Science in Sport plc, a listed company on the London Stock Exchange. The group expanded significantly in 2018 through the acquisition of PhD Nutrition, another major player in the protein and performance supplement market. The company remains headquartered in London, maintaining its British heritage while distributing its products globally.