This is a tube of 15 Precision Hydration 500 Electrolyte Tablets. Not every training session demands a heavy-hitting electrolyte drink. Shorter efforts, cooler conditions, and lighter sweaters all call for a more measured approach to sodium replacement, one that keeps you properly hydrated without overshooting your actual needs. The PH 500 is the entry-level tablet in the Precision Hydration range, delivering a moderate 500mg of sodium per litre in a low-calorie, easy-to-use format. One tablet dissolves in 500ml of water to produce a lightly flavoured electrolyte drink that supports hydration without adding significant calories, sugar, or flavour intensity. It is the right starting point for athletes with lower sweat rates, those exercising in cooler conditions, or anyone new to personalised hydration who wants to begin at a conservative strength and adjust from there. Where It Sits in the Range The Precision Hydration tablet range is built around the understanding that sweat rates and sweat sodium concentrations vary enormously between individuals. A one-size-fits-all electrolyte drink inevitably under-serves heavy sweaters and over-serves light ones. The PH 500 sits at the lower end of the range, below the PH 1000 (1,000mg sodium per litre) and PH 1500 (1,500mg sodium per litre), making it appropriate for athletes who lose relatively little sodium in their sweat or who are using it for shorter, lower-intensity sessions where sodium losses are modest. It can also be used as a recovery or pre-hydration drink, topping up electrolyte levels before training or replenishing them gently afterwards without delivering more sodium than the situation warrants. Low Calorie, Lightly Flavoured Each tablet contains a small amount of glucose to assist sodium absorption, keeping the calorie count low. The mild flavour is easy to drink consistently without becoming overwhelming across multiple bottles, making the PH 500 a practical everyday hydration option for training days that do not require more aggressive electrolyte replacement. What Is in Each Tablet Each tablet dissolved in 500ml delivers 250mg of sodium, plus potassium, magnesium, and a small amount of glucose. Vegan, vegetarian, gluten-free, and dairy-free. 15 tablets per tube. The PH 500 is Informed Sport certified, batch tested for banned substances, and suitable for competitive athletes at all levels. Key Benefits 500mg of sodium per litre, a moderate concentration suited to lighter sweaters and cooler conditions Low calorie formula with a small amount of glucose to support sodium absorption One tablet per 500ml, dissolves quickly with no measuring or mixing Mild, easy-to-drink flavour that works well across multiple bottles Lowest strength in the Precision Hydration tablet range, ideal as a starting point or for lighter efforts Useful for pre-hydration, recovery, and shorter training sessions Vegan, vegetarian, gluten-free, and dairy-free Informed Sport certified and batch tested for banned substances 15 tablets per tube, available in packs of 1, 12, or 24 tubes Who Is It For? The PH 500 suits athletes who sweat less than average, those training in cooler conditions where fluid and sodium losses are lower, or those using electrolytes for shorter sessions of under 60 to 90 minutes. It is also a good fit for athletes who are new to structured hydration and want to start conservatively before assessing whether a higher strength is needed. Athletes who sweat heavily, train in the heat, or regularly exceed 90 minutes at high intensity are more likely to benefit from the PH 1000 or PH 1500. If you are unsure which strength matches your sweat profile, the free Precision Hydration Sweat Test or online Hydration Planner is a helpful starting point. How to Use Drop one tablet into 500ml of water and allow to fully dissolve before drinking. Use as a hydration drink during shorter or lower-intensity sessions, as a recovery drink after training, or as a pre-hydration option before exercise. For harder or longer efforts in warm conditions, consider stepping up to the PH 1000 or PH 1500.
