Every gram is dosed to a physiological rationale. Nothing is in SYSTM because it looked good on a label.

Performance Electrolytes are a training hydration formula designed to replace key minerals lost through sweat and support fluid balance during exercise. Each serving contains sodium, potassium, magnesium, calcium, taurine, vitamin C and a precise micro-dose of glucose.
Sodium is the primary electrolyte lost in sweat and plays a central role in fluid balance, nerve function and muscle contraction. We use 600 mg per serving which sits at the physiological sweet spot - enough to maintain plasma volume whilst minimising gastric upset.
We use citrate and malate mineral forms - up to 3x more bioavailable than chloride blends used in many sports drinks, and dramatically easier on the gut.
Biology doesn't care about diet trends.
Most hydration brands chase the zero-sugar label. SYSTM uses a precise 2.5 g micro-dose of glucose because sodium-glucose co-transport is one of the body's key mechanisms for absorbing sodium and water in the gut.
Not sugar for calories. Glucose for transport.
Mix one sachet with 500 ml of cold water. This gives the intended electrolyte concentration, flavour profile and sodium-to-glucose ratio. Shake well and drink before, during or after training.