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.

Read More
per page

12 Products

Filter
Price
  1. protein bar, 20g protein, 0.7g sugar, 12 pack
    Protein20 Bars - 12 pack
    3 Flavours
    From €23.10
    Save 30%
    From €33.00
  2. Endurance Hydration Bundle Pack - 4 x SiS GO Hydro 20 tabs
    Hydro & Immune Bundle
    €26.60 Was €38.00
    Save 30%
  3. Go Isotonic Energy Gels - Variety Packs
    Go Isotonic Energy Gels - Variety Packs
    4 Flavours
    From €12.25
    Save 30%
    From €17.50
  4. GO Isotonic Energy Gel - 30 Pack - Apple
    GO Isotonic Energy Gel - 30 Pack - Apple
    Save 30%
    Special Price €47.25 Was €67.50
  5. GO Energy Mini Bars - 30 Pack
    GO Energy Mini Bars - 30 Pack
    3 Flavours
    From €31.50
    Save 30%
    From €45.00
  6. SiS GO Energy Bakes - 12 Pack
    SiS GO Energy Bakes - 12 Pack
    3 Flavours
    From €13.93
    Save 30%
    From €19.90
  7. Go Electrolyte Powders
    Go Electrolyte Powders
    3 Flavours
    From €27.30
    Save 30%
    From €39.00
  8. 600ml SiS Cycling Drinks Bottle - Wide Neck
    Wide Neck Water Bottle - 600ml
    Save 30%
    Special Price €3.50 Was €5.00
  9. 800ml SiS Pro Yellow Cycling Bottle
    Pro Yellow Bottle - 800ml
    Save 30%
    Special Price €5.25 Was €7.50
  10. Go Hydro Tablets
    Go Hydro Tablets
    14 Flavours
    From €7.00
    Save 30% - 50%
    From €10.00
  11. SiS Immune - 8 Pack - Orange
    SiS Immune - 8 Pack - Orange
    Save 35%
    Special Price €41.60 Was €64.00
  12. Immune - 20 Tablets - Orange
    Immune - 20 Tablets - Orange
    Save 30%
    Special Price €7.00 Was €10.00