Electrolyte SR 60 Tablets

Electrolyte SR — Sustained Release Electrolytes for Fluid Balance, Hydration, and Cramp Prevention

Endurance Products Electrolyte SR delivers the four primary electrolytes — sodium, potassium, chloride, and magnesium — in the company's SmartMatrix™ vegetable wax matrix tablet that releases electrolytes gradually over 6–8 hours. This is the sustained-release electrolyte product Endurance Products has produced under the brand name REPLACE® and is the cornerstone of their sports and performance line. The sustained-release format fundamentally changes how electrolyte supplementation works: rather than taking a single bolus that creates a temporary spike in gut electrolyte concentration followed by rapid urinary excretion, the wax matrix releases small amounts of electrolytes continuously over hours — matching the rate of electrolyte loss during sustained physical activity and heat exposure more accurately than any conventional electrolyte drink or tablet.

The key physiological benefit of sustained electrolyte release is its ability to slow the rate of fluid absorption from the gut into the bloodstream, pulling water in gradually alongside the continuously released electrolytes and maintaining a more stable and effective hydration state during prolonged activity. Customers report that Electrolyte SR is particularly effective for preventing and resolving the nocturnal and exercise-induced muscle cramps that are among the most common complaints of electrolyte-depleted patients — including those on diuretics, athletes with heavy sweat rates, patients on low-carbohydrate diets, and older adults. No sugar, no artificial flavors, no calories — just four electrolytes in a clean wax matrix tablet.

• Sodium, potassium, chloride, and magnesium in SmartMatrix™ wax matrix
• Sustained release over 6–8 hours — matches rate of electrolyte loss during activity
• Prevents muscle cramps, supports fluid balance and hydration
• No sugar, no calories, no artificial flavors
• 60 tablets; vegan, gluten-free

Take 1–2 tablets with water before, during, or after activity, or as directed by your healthcare provider.