Chapter 01 · The problem
Drinking water is not the same as absorbing it.
When you sweat, you lose fluid and electrolytes. Replacing water alone does not replace the complete balance your body has lost.
SOS Rapid Hydration System™
See how precise electrolytes and glucose help move water where your body actually needs it.
Rapid Hydration Science™
A precise balance of electrolytes + glucose helps your body absorb fluid more effectively.
Chapter 01 · The problem
When you sweat, you lose fluid and electrolytes. Replacing water alone does not replace the complete balance your body has lost.
Chapter 02 · The mechanism
In the right balance, sodium and glucose support co-transport — helping water move across the intestinal wall and into circulation.
Chapter 03 · The result
SOS applies established oral rehydration principles in an everyday formula designed for movement, travel, heat and demanding routines.
Inside every serving
Hydration is a team sport. Explore how each part of the SOS formula helps support rapid absorption.
Fluid balance
Helps your body retain the water you drink and replace what is lost through sweat.
Absorption engine
A precise amount of glucose works with sodium to help transport water across the intestinal wall.
Cellular function
An essential electrolyte that supports normal muscle and nerve function when hydration demands rise.
Muscle support
Supports normal energy metabolism and muscle function as part of a balanced electrolyte profile.
SOS is formulated around the principles of oral rehydration therapy.
Hydration, in context
Choose a moment to see when rapid hydration can fit into real life.
Built for movement
Before, during or after
When sweat rises, water alone may not replace everything you lose. SOS helps replenish key electrolytes alongside fluid.
Hydration that travels
Carry-on hydration
Packets are easy to carry and simple to mix when travel disrupts your routine.
Ready for hot days
When temperatures climb
Hot conditions can raise sweat loss quickly. Start hydrated and replenish fluids and electrolytes as conditions demand.
Everyday format
Daily hydration habit
Busy schedules, early starts and everyday life can all make consistent hydration harder.
Hydration should be simple, effective and built for the moments that ask more of us.
The thinking behind SOS
Built from necessity
SOS was shaped by firsthand experience in elite sport and military service, then grounded in the established science of oral rehydration.
Our story →No complicated ritual
Open one packet when your day demands more.
Add to water and shake or stir until dissolved.
Drink before, during or after your demanding moment.
Turn the science into a habit
Take the quiz for a tailored starting point, or go deeper into the research behind SOS.
Shop all hydration →