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.
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.
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.
- REGO Rapid Recovery Protein Powder5 FlavoursFrom £11.99Save 40%From £19.99
- GO Energy Bakes - 12 Pack4 FlavoursFrom £12.60Save 40%From £21.00
- Recovery Bundle£72.00 Was £120.00Save 40%
- Hydro Tablets11 FlavoursFrom £4.80Save 40%From £8.00
- Bottle - 800mlSave 40%Special Price £3.00 Was £5.00
- GO Isotonic Energy Gel8 FlavoursFrom £5.25Save 40% - 61%From £10.50
- GO Energy + Electrolyte Gels3 FlavoursFrom £7.56Save 40% - 50%From £12.60
- GO Isotonic Energy Gel - Multi Flavour 30 Pack Bundle£28.80 Was £48.00Save 40%
- Speciality Mixed Gel Bundle - 30 Pack (Multi Flavour)£36.00 Was £60.00Save 40%
- GO Energy + Caffeine Gels3 FlavoursFrom £6.60Save 40% - 50%From £13.20
- Mixed GO Isotonic Energy Gels - 20 PackSave 40%Special Price £20.40 Was £34.00
- REGO Cherry Juice - 20 PackSave 50%Special Price £15.00 Was £30.00
- GO Electrolyte Powder3 FlavoursFrom £7.20Save 40%From £12.00
- GO Isotonic Energy Gel - 6 Pack (Lemon & Lime)Save 40%Special Price £6.30 Was £10.50
- PROTEIN20 Bar - 12 pack2 FlavoursFrom £19.80Save 40%From £33.00
- Hydro & Immune Bundle£18.00 Was £30.00Save 40%