Science in Sport (SiS): a simple buying guide
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Science in Sport (SiS) is an endurance nutrition brand for running, cycling, triathlon and other endurance sports. The range we carry includes SiS Isotonic Gels and Go Energy + Caffeine gels, Go Caffeine shots, Go Electrolyte powder, Hydro and Hydro+ hydration products, the Rego whey recovery powder, Energy Oat Bars, and VMS vitamins such as vitamin D3 and super strength omega-3.
The main choice is between fuel (gels, carbohydrate drinks and bars), hydration (electrolyte tablets and powders) and recovery (Rego). Isotonic gels are designed to be taken without water, while some other gels are more concentrated; the label tells you which. Caffeinated gels and shots state the caffeine per serving on the pack. Practise with gels and drinks in training before relying on them in a race. You will find SiS listed under both "SIS" and "SIS (Science In Sport)" product names; both appear on our Science In Sport (SIS) page. Read our SiS range guide for more.
Shop the range: Science In Sport (SIS) at NE Commerce
Choosing from the SiS range
- Fuel: Isotonic Gels, Go Energy + Caffeine gels, Energy Oat Bars.
- Hydration: Hydro, Hydro+ and Go Electrolyte.
- Recovery: Rego whey.
Related ranges and guides
FAQs
Are SiS gels isotonic?
SiS Isotonic Gels are, as the name says, formulated to be isotonic, so they can be taken without extra water. Other SiS gels, such as Go Energy + Caffeine, are separate products; check each label.
Where can I buy SiS in the UK?
You can buy SiS at NE Commerce: our Science In Sport (SIS) page lists every SiS product we carry. Sold-out lines stay visible and show as Sold out until they return, so you can see the full range.
How much caffeine is in SiS caffeine gels?
The caffeine per gel or shot is printed on the pack and on each product label. Check it before use and count it with any other caffeine.
Ready to compare? Browse our full Science In Sport (SIS) range.