First Endurance EFS Energy and Hydration Mix is a scientifically formulated endurance sports drink powder designed to provide both energy and hydration during long workouts, training sessions, and races. It combines easily digestible carbohydrates with a complete profile of key electrolytes to help athletes maintain fluid balance, support energy production, and reduce the risk of cramping and dehydration during prolonged exertion.
The mix delivers about 30 g of carbohydrates per serving in a balanced ratio that supports sustained energy release, helping you perform farther and longer without sudden energy dips. Its isotonic formula is engineered to match the body’s natural fluid balance, which can speed up absorption and reduce gastrointestinal distress compared with hyper- or hypo-tonic drinks.
EFS also supplies a clinically effective dose of all five main electrolytes—sodium, potassium, magnesium, calcium, and chloride—important for preventing cramping and supporting muscle and nerve function. This makes it especially suitable for athletes competing or training in hot, sweaty, or high-endurance conditions.
Unlike many hyper-sweet sports drinks, EFS is formulated with no artificial flavors, colors, or artificial sweeteners, and it’s typically vegan and gluten-free depending on flavor and specific formulation. The taste profile is generally light and refreshing, designed to be easy to drink even over hours of activity.
Use it before and during exercise to help sustain energy, maintain hydration, and support performance from training rides and runs to full races.
