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Rapid Rehydration
Tangerine
Get Monthly for $36
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Lightspeed Rapid Rehydration powder
Tangerine

Rapid Rehydration

30 stick packs

Isotonic powder mix designed for rapid hydration with a high concentration of electrolytes and zero sugar.1

Pre-, mid-, or
post-workout
In high
altitudes
While out
in the sun
After a
night out
When
traveling
If you're
feeling unwell
Starting off
your day
Anytime to
feel good!

Hydration at the speed of light.

WHAT YOU NEED TO KNOW
NASA-inspired hydration formula
1,860 mg of electrolytes
Zero sugar, zero carbs1
Isotonic osmolality
HOW IT TASTES
ISOTONIC SOLUTION WITH ZERO SUGAR

Based on NASA’s rehydration formula, Lightspeed is designed to match your blood’s osmolality so that it can be rapidly absorbed without modification in your stomach. 

Pre-, mid-, or
post-workout
In high
altitudes
While out
in the sun
After a
night out
When
traveling
If you're
feeling unwell
Starting off
your day
Anytime to
feel good!
Pre-, mid-, or post-workout
In high
altitudes
While out
in the sun
After a
night out
When
traveling
If you're
feeling unwell
Starting off
your day
Anytime to
feel good!
THE WAR ON SUGAR

The average American consumes about 66 pounds of sugar a year 🤯  We don’t need more sugar in our diets.

Electrolytes need water to do their job, and the recommended solution for years has been sugary sports drinks. This shouldn’t be shocking, but syrupy “hydrating” concoctions aren’t very hydrating. These products don’t have nearly enough electrolytes, and far too much sugar, ultimately doing more harm than good. That’s why we created Lightspeed. Our NASA-inspired formula has everything you need to be at peak performance, and nothing extra.

12 oz
Sugars: 21,000mg
Electrolytes: 160mg
Calories: 80

If you drank 1 every day for a year:

+ 16.9 lbs of sugar 
12 oz
Sugars: 9,000mg
Electrolytes: 370mg
Calories: 35

If you drank 1 every day for a year:

+ 7.2 lbs of sugar 
12 oz
Sugars: 11,000mg
Electrolytes: 500mg
Calories: 50

If you drank 1 every day for a year:

+ 8.9 lbs of sugar 
12 oz
Sugars: Zero.1
Electrolytes: 1,860mg
Calories: Zero.1

If you drank 1 every day for a year:

+ 0 lbs of sugar 1
HOW IT WORKS

Isotonic osmolality is key.

Your bloodstream maintains an osmolality that hovers between 275-295 Omol/L. Because of this, it can only absorb liquids within this range. Anything outside of that, your body must compensate to absorb it. The less water in your bloodstream, the greater the osmolality. More water results in lower osmolality.  The solution is to use an isotonic solution. Isotonic solutions match the osmolality in your bloodstream, allowing for maximum absorption. Our isotonic solution – based on NASA’s rehydration formula – is precisely designed to match your blood’s osmolality so that it can be rapidly absorbed without modification in your stomach. Learn More >