Your Cart

Close
looks like we're in a black hole 🔭
Let's fill up your cart with something stellar ✨
Rapid Rehydration
Tangerine
Get Monthly for $36
Buy Once for $45
Subtotal
$90 $81
Go to Checkout
EXPLORE THE NEW FRONTIER OF HYDRATION

The

fastest

healthiest

most effective

smartest

tastiest

way to hydrate

Sugar-free NASA-developed hydration designed to propel your everyday life.

Dissolves
easily
Made in
America
Only $1.20/day
Tastes great!
Zero sugar, zero carbs1
Lightspeed Rapid Rehydration powder
Science. Not sugar.
ASTRONAUT APPROVED

Our Story

After finding that astronauts were experiencing severe dehydration in space, NASA sought to fix the problem. They patented a powerful isotonic solution very high in electrolytes to keep astronauts well hydrated and at maximum performance during their missions. Utilizing the learnings from NASA's expired patent, we developed Lightspeed. Learn More >

Vegan
Zero Carbs 1
Keto-Friendly
Paleo-Friendly
Zero Calories 1
Zero Sugar 1
Isotonic Solution
Gluten Free
Vegan
Zero Carbs 1
Keto-Friendly
Paleo Friendly
Zero Calories 1
Zero Sugar 1
Isotonic Solution
Gluten Free
Vegan
Zero Carbs
Keto-Friendly
Paleo Friendly
Vegan
Zero Carbs
Keto-Friendly
Paleo Friendly
🚀
We're on a mission to keep America hydrated through healthy, effective, and affordable products.
👨‍🚀
Our Story
After finding that astronauts were experiencing severe dehydration in space, NASA sought to fix the problem. In 1992, they patented a powerful electrolyte formula very high in sodium to keep astronauts well hydrated and at maximum performance during their missions.
Tangerine

Rapid Rehydration

30 stick packs

Isotonic powder mix designed for rapid hydration with 1,860 mg of electrolytes and zero sugar.1 Learn More

Taste profile is more tart than sweet
Science. Not sugar.
🚀
We're on a mission to keep America hydrated through healthy, effective, and affordable products.
👨‍🚀
Our Story
After finding that astronauts were experiencing severe dehydration in space, NASA sought to fix the problem. In 1992, they patented a powerful electrolyte formula very high in sodium to keep astronauts well hydrated and at maximum performance during their missions.

OUR PRODUCTS

Bringing NASA-developed hydration down to Earth.

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.

HOW IT TASTES
Taste profile is more tart than sweet
Taste profile is more tart than sweet
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Science. Not sugar.

Shop Lightspeed starting at $1.20/day

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.  In order to hydrate most efficiently, use an isotonic solution. Isotonic solutions match the osmolality in your bloodstream, allowing for maximum absorption. Our isotonic solution – based off of 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 >