“Proving there was a market for high-end nutritional supplements for distance freaks, First Endurance has found success in becoming the Ferrari of sports-supplement companies.”
“First Endurance produces supplements that deliver on their promise, thanks to clinically proven dosages of endurance boosting ingredients.”
THIS IS WHAT GOING FAST TASTES LIKE
THIS IS WHAT GOING FAST TASTES LIKE
100% PERFORMANCE
GUARANTEE
If you’re not satisfied, we don’t expect you to pay. Return it within 30 days for a refund or credit. It’s that simple.
FUELING MADE SIMPLE
In the past, you had to mix and match your endurance nutrition. You’d get gels from one company, hydration mix from another, and your recovery mix from yet another. That created all kinds of problems.
First Endurance is a comprehensive performance system that eliminates guesswork. No overlap, no gaps, no confusion, no reason to DNF.
TOP PICKS
LATEST BLOG POSTS
“Why I KOM” with Phil Gaimon
Phil Gaimon's Q&A
Mythbusting Caffeine Habituation
Caffeine supplementation benefits daily users – at the right dosageIntroduction Q: If I regularly use caffeine, will it still work when taken before and/or during exercise? A: YES! You can keep your caffeine habit and still reap its benefits when you...
Caffeine and Endurance Performance
Why 25mg of caffeine is the sweet spot for Liquid ShotIntroduction The use of caffeine has become common practice among endurance athletes. It’s well accepted that caffeine can not only improve performance, but it can also reduce the perceived exertion...
YOU MAY ALSO LIKE
Cold & Flu Season Tips For Endurance Athletes
It’s that time of year again. After all the traveling, gathering, and celebrating of the holiday season means with Holiday Cheer comes post-Holiday Fear of illness
How Beta Glucan Strengthens Your Immune System
The latest research on how MultiV-PRO with Wellmune® beta glucan reduces time and performance losses to illness.
Dehydration & Muscle Cramps
Muscle cramping from dehydration is a major issue for many athletes. The latest research shows hydration & salt are not as effective as a specific key mineral.
Adaptogens & New Insights Hiding in Plain Sight
Introduction This is the first in a series of blogs on Optygen & OptygenHP, long-time staples in the First Endurance arsenal. In fact, Optygen was the First Endurance’s first product almost 20 years ago, and feedback has been overwhelmingly positive....
The Fourth Leg – A Professional Approach to Ironman Fueling & Hydration
Introduction We asked MHRacing’s Dr. Matt Hanson, a pro triathlete and coach with an impressive palmares (5 Ironman wins and 5 Ironman 70.3 wins are just the highlights), for his insight into fueling on race day. He was candid enough to share his exact...
Upgrade Your Performance
Clinically Shown to Increase Endurance
Ashley
I’m able to push myself harder
“Physically and psychologically, I’m able to push myself harder. I'm not hitting the weights or anything. Just hardcore cardio. Optygen is, by far, the best supplement that I’ve come across.”
Doug D.
Helps me get lean
“Every season, when I start taking OptygenHP on a regular basis, I always lose a few extra pounds. I lean out. This has happened for the last three years in a row. Once I start using OptygenHP, I lose about three pounds.”
Matt K.
Big difference
“The biggest difference I notice is when I stop using it.”
UNRIVALED.
INNOVATION.
We’re committed to pushing the limits of endurance nutrition so you can redefine your limits of endurance.
NEW
ARRIVALS
THE BEST FORMULA WE’VE EVER DEVELOPED
OPTYGENHP
ALL-IN-ONE CONVENIENT MEAL REPLACEMENT
EVO1
WHAT THE PROS ARE SAYING
“With First Endurance, I can train & race really hard and get up and do it again the next day.”
Tina Pic
6x US Criterium champion
“I’m able to train and race better with First Endurance.”
Matt Hanson
America’s Fastest IRONMAN
6x IRONMAN Champion
“I can rebound fast enough to make every run a strong one.”
Karl Meltzer
Winningest Ultra runner in history (38 Victories)
