Hydration is
more than water.

Why water isn’t enough

When you sweat through a shift or a workout, you don’t just lose fluid — you lose electrolytes: sodium, potassium, magnesium, calcium, and chloride. These minerals carry the electrical charge that lets your muscles contract, your nerves fire, and your brain stay sharp. Drink plain water to replace the fluid and you dilute what’s left, which is why you can drink all day and still feel drained, cramped, and foggy. Real rehydration means replacing the water and the minerals together, in a ratio your body can use.

What each electrolyte does

• Sodium — the primary driver of fluid balance. It’s what lets your body hold on to the water you drink instead of passing it straight through. It’s also the electrolyte you lose the most of in sweat.
• Potassium — works with sodium to move fluid into cells and keep your heartbeat and muscles steady. Low potassium is a common cause of the cramps that show up late in a long day.
• Magnesium — supports muscle recovery, energy production, and nerve function, and helps prevent cramping and that heavy-legged, run-down feeling.
• Calcium — essential for muscle contraction and nerve signaling; your muscles literally can’t fire properly without it.
• Chloride — partners with sodium to maintain fluid balance and healthy pH.

Absorption is the whole game

The form of a mineral decides how much of it your body can actually use. Redi uses pink Himalayan sea salt, magnesium malate, and calcium citrate — forms chosen for absorption and gentleness on the stomach — instead of the cheapest bulk salts. A label can promise a mineral, but the form is what determines whether that mineral reaches your cells or passes through. Five essential electrolytes, in four premium forms, in every stick pack.

Why physical work changes the math

Most hydration advice is written for someone sitting at a desk or running a race. Neither describes a twelve-hour nursing shift, a day framing a roof in July, or a parent who hasn’t sat down since 6 a.m. Sustained physical work in the heat can cost you a liter of sweat an hour, and with it a heavy dose of sodium — far more than a few sips of water can offset. The longer and hotter the day, the more the balance tips, and the more it matters that what you drink puts back all five electrolytes, not just fluid. That’s the gap Redi is built for.

When to reach for which

Drink Replenish before, during, or after work or exercise — or any time you need hydration, including before bed, since it’s caffeine-free. Reach for Amplify 15–20 minutes before you need energy and focus: it adds caffeine, Alpha-GPC, and NMN to the same hydration base. Both use identical five-electrolyte chemistry; the only question is whether you also want the energy layer.

The bottom line

Hydration isn’t a marketing category — it’s chemistry your body runs on every minute you’re working. Give it water alone and you solve half the problem. Give it water plus the five electrolytes it lost, in forms it can absorb, and you stay steady, clear, and cramp-free through the part of the day that used to break you.

Signs you’re running an electrolyte deficit

Your body is usually telling you before you consciously notice. The common signals during and after hard physical work include muscle cramps and twitches, a dull headache, unusual fatigue or heavy legs, dizziness when you stand, and difficulty concentrating even though you’ve been drinking water. Any one of these can have other causes, but together, on a hot or long working day, they often point to fluid and electrolytes you haven’t replaced.

The useful takeaway isn’t to diagnose yourself mid-shift — it’s to stay ahead of the deficit so you never get there. Hydrating with all five electrolytes steadily, before symptoms show up, is far more effective than trying to rescue yourself once the cramps and fog have already set in. Prevention is a stick pack and a water bottle; the cure is a miserable afternoon.