Leaders in performance

Best Sellers

At Science in Sport, we’re committed to research, testing, and certification. By working with the elite athlete community, we create performance-driven products that meet your nutritional needs and support your training goals. 


Our best-selling products are widely trusted across the globe, helping ambitious athletes from a wide range of disciplines to take their training to the next level. Through our world-leading and relentless research, we formulate products that will truly impact your performance. Discover the benefits of SiS today with our best-selling products.

 

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3 Items

  1. Protein Bars
    Protein Bars A tasty, low sugar high protein bar coated in chocolate
    From £23.09 From £32.99
    30% Off
    Member £23.09