250mg/l electrolyte supplements

Find out which strengths are right for you by taking our free online Sweat Test

H2Pro 250

  • Always hydrated
  • Low-calorie tabs
  • Weight/space saver
  • Hypotonic
From £8.99

PH 250

  • Always hydrated
  • All-natural drink mix
  • Waterproof packets
  • Hypotonic
From £9.99


Our all-natural drink mixes are Informed Sport/Choice Certified.

All of our supplements are batch-tested for a wide range of prohibited substances on the World Anti-Doping Agency (WADA) list.

How can I stay hydrated day to day? Drinking a weaker electrolyte drink can help you stay hydrated at times when you're physically active, but not sweating heavily. They are also ideal for staying hydrated during long-haul flights, when you're sick, or in between training sessions if you're training more than once in a day.

Hyponatremia is a condition caused by a dilution of your blood sodium levels. It's fairly common in endurance athletes because when we sweat we lose sodium and - over prolonged periods of exercise - replacing enough of what we're losing can be hard. Just drinking plain water or weak sports drinks can further dilute blood sodium levels, so adequate sodium supplmentation is important during longer events like Ironman triathlons or ultramarathons. Symptoms of hyponatremia include nausea, headaches and fatigue.