Science In Sport

Science In Sport (SiS) is a British sports nutrition brand producing scientifically formulated energy gels, hydration drinks, bars, and recovery products trusted by elite athletes, professional cyclists, and endurance sports enthusiasts worldwide. Known for their isotonic GO Energy gels, HYDRO+ electrolyte drink mixes, and evidence-based nutrition approach, SiS products are...

Science In Sport (SiS) is a British sports nutrition brand producing scientifically formulated energy gels, hydration drinks, bars, and recovery products trusted by elite athletes, professional cyclists, and endurance sports enthusiasts worldwide. Known for their isotonic GO Energy gels, HYDRO+ electrolyte drink mixes, and evidence-based nutrition approach, SiS products are a popular choice for cyclists who want reliable, gut-friendly fuelling for training and racing. At Swinnerton Cycles, we stock a range of Science In Sport nutrition products for road, MTB, and endurance cyclists.

  • Energy oat bars for sustained energy and muscle support on long rides
  • HYDRO+ electrolyte drink mix sticks for hydration and energy
  • Available in a range of flavours including lemon and orange mango
  • Scientifically formulated for endurance athletes and cyclists
  • Gut-friendly nutrition designed for use during exercise
  • British sports nutrition brand trusted by elite and amateur cyclists

Science In Sport Best Sellers

Browse our full range of cycling nutrition and cycling accessories at Swinnerton Cycles.

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  • Science In Sport 600ml wide neck drinks bottle with clear measurement markings for SiS powders, made of durable plastic.Science In Sport 600ml wide neck drinks bottle with clear markings for SiS powders, made of durable plastic with a screw cap.

      Science In Sport 600ml Wide Neck Drinks Bottle with Clear Markings for SiS Powders

      Stay perfectly hydrated with the Science In Sport Drinks Bottle - 600 ml wide neck. Designed specifically for SiS drinks, this clear bottle features easy-to-read markings that simplify the mixing process. Its wide neck opening allows effortless pouring of powder from larger tubs, ensuring...
      £3.81
      £5.00
      £3.81
      Save £1.19
    • Science In Sport Rego Recovery Gel in natural Montmorency cherry flavor, antioxidant support, shown in a sleek accessory package.Science In Sport Rego Recovery Gel in natural Montmorency cherry flavor, showing the gel packet with cherry imagery and brand logo.

      Science In Sport Rego Recovery Gel – Natural Montmorency Cherry Antioxidant Support - Cherry

      Science In Sport Rego offers a natural and effective way to enhance your recovery after intense exercise. Made from 100% Montmorency cherry, this gel is packed with anthocyanins, flavonoids, and melatonin—powerful compounds known for their antioxidative and anti-inflammatory benefits. These ingredients work together to...
      £38.23
      £40.00
      £38.23
      Save £1.77
      • Cherry
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