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 sits in our diet & nutrition listings, where we rank by how buyers actually rate a product rather than by brand. The manufacturer says: 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 4.5 out of 5 from 5,572 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Science in Sport
- Amazon rating
- 4.5 / 5 from 5,572 ratings
- vs Diet & Nutrition
- 0.1 above the category median of 4.4
- Rank in category
- 13 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 4.5, which is around the middle of the category. Ratings alone will not separate it from its rivals here, so price and the specifics below matter more than the star count.
It carries 5,572 ratings against a category median of 2,629. That is enough of a base to take the score seriously without treating it as settled.
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
