science
Electrolytes regulate fluid distribution in the body. They help determine where water moves and how it’s retained, particularly when sweat loss increases. During prolonged effort or heat exposure, these minerals are depleted at a measurable rate, which is why hydration strategy matters more in those environments.
KURO is built around that context. A balanced mineral composition, structured for demanding conditions without excess or unnecessary additives.
Sodium.
Sodium is the foundation of hydration. It’s the primary driver that helps your body pull water into the bloodstream and hold onto it, especially when you’re sweating or under physical stress.
We use sodium at a level that actually replaces what’s lost during training and long days, not a token amount for the label. Without enough sodium, hydration doesn’t really happen.
Potassium.
Potassium works alongside sodium to move fluid into cells and keep things functioning smoothly. It plays a big role in muscle contraction, nerve signals, and preventing that flat, drained feeling that can creep in after long sessions.
Including potassium isn’t about adding complexity, it’s about balance. Hydration works best when sodium and potassium are in sync.
Magnesium & Calcium.
Magnesium and calcium are there to support stability. Magnesium helps muscles relax and recover, while calcium supports proper muscle contraction and signalling. Together, they help reduce cramping, fatigue, and that lingering tension that can build up over time.
They’re included in supportive amounts, not to overwhelm the system, but to keep everything working as it should when output stays high.
