Science in Sport Hydro Electrolyte Tablets - Four Key Electrolytes and B Vitamins - Sugar-Free, Vegan & Gluten-Free Sports Hy
Reviewed 9 August 2026 · price checked live
Check price on Amazon →Overview
Science in Sport Hydro Electrolyte Tablets - Four Key Electrolytes is one of the 50 diet & nutrition products in our catalogue, tracked on rating, review volume and live price. The maker describes it as follows: Single-serve effervescent tablets deliver a controlled combination of electrolytes and B vitamins, making hydration precise and accessible wherever your sport takes you. Developed with elite athlete insight and rigorous research, these tablets offer targeted levels of sodium, potassium. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.6 out of 5 from 8,059 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Science in Sport
- Amazon rating
- 4.6 / 5 from 8,059 ratings
- vs Diet & Nutrition
- 0.2 above the category median of 4.4
- Rank in category
- 4 of 50 rated diet & nutrition we track
- Price position
- Among the cheaper options (category spans £2.50 to £96.90)
- How proven
- Well established, above-average review volume
How it compares in Diet & Nutrition
Across the 50 rated diet & nutrition products we track, the typical score is 4.4 out of 5. This one sits at 4.6, which puts it in the upper quarter of the category rather than level with it. Where almost everything is rated well, the gap at the top is small in points and large in practice. That places it 4th of the 50 we rank here.
It carries 8,059 ratings against a category median of 2,629. A rating from a large base is harder to distort and tends to hold up over time, so a high score here means more than the same score on a new listing.
On price it sits in the lower third of a category running from £2.50 to £96.90, where the midpoint is about £14.99. Cheaper than most while rating at or above the category norm is the combination worth looking for, and it is the main argument for this one.
Worked out from the 50 diet & nutrition products in our catalogue, not from the brand's own claims. How we rank →
Key features
- Push Boundaries in Every Session: Single-serve effervescent tablets deliver a controlled combination of electrolytes and B vitamins, making hydration precise and accessible wherever your sport takes you
- Build on Proven Science: Developed with elite athlete insight and rigorous research, these tablets offer targeted levels of sodium, potassium, calcium and magnesium to support normal muscle function and electrolyte balance
- Prepare for : Features vitamin B1 and B2 to contribute to normal energy-yielding metabolism and carbohydrate conversion, and B6 to support protein metabolism during effort
- Trust in Uncompromising Standards: Each batch is tested for banned substances, ensuring confidence and reliability for athletes determined to advance at every level
- You can’t Beat the Science: Every SiS product is driven by research, developed with elite athletes, and tested with precision to deliver reliable, evidence-based performance nutrition for athletes at every level
