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Bestsellers

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.

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  1. Yes (12)
Product Category
  1. Hydration (5)
  2. Energy (7)
  3. Recovery (3)
  4. Vitamins-Minerals (3)
  5. Accessories (3)
Type of Product
  1. Bars (4)
  2. Bottles (3)
  3. Gels (3)
  4. Powders (2)
  5. Tablets (6)
  6. Premixed Drinks (1)
  7. Bakes (1)
Flavour
  1. Apple (1)
  2. Apple and Blackcurrant (1)
  3. Banana Fudge (1)
  4. Berry (2)
  5. Blackcurrant (3)
  6. Blueberry (1)
  7. Cherry (2)
  8. Chocolate Fudge (1)
  9. Citrus (1)
  10. Cola (3)
  11. Cookies and Cream (1)
  12. Double Espresso (1)
  13. Fruit Salad (1)
  14. Lemon (3)
  15. Lemon and Lime (2)
  16. Lemon and Mint (1)
  17. Mixed (2)
  18. Orange (5)
  19. Pineapple (1)
  20. Pineapple and Mango (1)
  21. Pink Grapefruit (2)
  22. Raspberry (1)
  23. Red Berry (1)
  24. Salted Caramel (2)
  25. Strawberry (1)
  26. Strawberry and Lime (1)
  27. Tropical (2)
  28. Unflavoured (2)
  29. Various (1)
  30. Tiramisu (1)
  31. Peanut Butter & Jelly (1)
  32. White Choc Fudge (1)
Caffeine
  1. Caffeine Free (10)
  2. Contains Caffeine (5)
Price
  1. GO Isotonic Energy Gels
    GO Isotonic Energy Gels The world's first isotonic energy gel
    From £10.50
    Member £9.45
  2. GO Electrolyte Powder
    GO Electrolyte Powder Advanced formulation delivering carbohydrates and electrolytes
    From £13.50
    Member £12.15
  3. GO Energy Bakes - 12 Pack
    GO Energy Bakes - 12 Pack 2 to 1 carbohydrate ratio in a soft filled bake
    From £24.00
    Member £21.60
  4. SiS Immune - 8 Pack - Orange
    SiS Immune - 8 Pack - Orange Low calorie rehydration drink with vitamin C and Iron
    £60.00
    Member £54.00
    Add
  5. REGO Cherry Juice - 30 Pack
    REGO Cherry Juice - 30 Pack Natural source of antioxidants and melatonin
    £40.00
    Member £36.00
    Add
  6. GO Energy Bar Mini - 30 Pack
    GO Energy Bar Mini - 30 Pack Made from natural fruit ingredients
    From £39.00
    Member £35.10
  7. Protein Bars
    Protein Bars A tasty, low sugar high protein bar coated in chocolate
    Out of stock
  8. GO Energy Powder - 1.6kg
    GO Energy Powder - 1.6kg Easily digestible and quick supply of carbohydrate
    From £33.00
    Member £29.70
  9. Immune Tablets - Orange
    Immune Tablets - Orange Low calorie rehydration drink with vitamin C and Iron
    £8.00
    Member £7.20
    Add
  10. Hydro Tablets
    Hydro Tablets Optimum hydration in a convenient format
    From £8.00
    Member £7.20
  11. Daily omega 3 can contribute to heart and cardiovascular health. Each tub contains 60 softgels giving you 60 days supply with a suggested use of 1 per day.
    Daily Omega 3 Contributes to heart and cardiovascular health
    10% Off
    £8.54 Was £9.49
    Out of stock
  12. GO Energy + Caffeine Gels
    GO Energy + Caffeine Gels Improves alertness and concentration
    From £13.50
    Member £12.15
  13. Hydra Flask Water Bottle - 750ml
    Hydra Flask Water Bottle - 750ml Keeps liquids hot for 12 hours and cold for 24 hours
    £8.99
    Member £8.09
    Add
  14. Double Wall Stainless Steel Shaker - 750ml
    Double Wall Stainless Steel Shaker - 750ml Flip-spout lid with carry handle
    £10.00
    Member £9.00
    Add
  15. 2.2L Water Jug
    2.2L Water Jug Delivers entire recommended daily water intake
    £6.99
    Member £6.29
    Add

Best Sellers

 

INNOVATIVE FUELLING SOLUTIONS 

All Science in Sport products are specially formulated to help endurance athletes take their sport to the next level. From energy and hydration to supporting your recovery, our innovative solutions are fuelled by science, designed to fuel your performance. Discover the benefits of SiS today with our best-selling products.

 

COMMITTED TO QUALITY

We work with sporting professionals and athletes from all over the world to create performance nutrition solutions that are thoroughly tried and tested. Our range of best-selling products contain the best available ingredients for your nutritional needs, working to boost your energy, hydration, recovery and overall well being.

 

SHOP BEST-SELLING PRODUCTS AT SCIENCE IN SPORT

When you dedicate so much of your time to your sport, you want the most innovative nutrition products available to help you level up your performance.

Our best-selling Science in Sport products are trusted all over the world, across a vast range of sports. But don’t just take our word for it! Discover our best-selling products today for world-class sports nutrition.