Cadence Race 500 is a zero-calorie, vegan hydration + energy sachet featuring a potent electrolyte mix (500 mg sodium, 200 mg potassium, 20 mg magnesium) and a 100 mg caffeine + 200 mg L‑theanine stack. Designed to mix into a bottle and taken 30–60 minutes pre-race or hard workout, it supports hydration, alertness, and smooth focus—no crash.