Breakthrough Year!
“My heart rate dropped significantly and I was able to push harder at a lower heart rate.”
Game Changer
“Quite literally a game changer for endurance athletes looking to optimize their performance gains.”
Big Gains Fast
“I increased my Vo2 Max by 5 points in the first 10 weeks!

“The Ferrari of sports-supplement companies.”

“First Endurance produces supplements that deliver on their promise, thanks to clinically proven dosages of endurance boosting ingredients.”
“I'm surprised how good I feel everyday.”
Full Protection
"The only time I got sick was the month I ran out."
Highly Recommend!
"Took me through flu-season and marathon training, when I should have been most vulnerable."
Keeps me healthy
"I don't catch colds or get sick when I take MultiV regularly."
The best multivitamin out there
"I started noticing more constant energy within about 2 weeks."
Latest Posts
Training for the Time-Crunched Endurance Athlete
Coach and former XTERRA World Champion Josiah Middaugh teaches time-crunched athletes to train smart—targeted sessions, balanced disciplines, and non-negotiable recovery.
FIRST ENDURANCE TEAMS UP WITH HOT TUBES
Hot Tubes Development Team has been a standout presence in junior elite cycling races across the U.S. since the early ’90s, known for producing national champions and future pros. They're also helping grow the sport in North America—powered by First Endurance.
Warning Signs of Poor Gut Health in Endurance Athletes
By Jennifer A. Kurtz, PhD, CSCS, CISSN, EP-C
Endurance athletes focus on speed, strength, and fueling strategies, but gut health is often overlooked. Dr. Jennifer Kurtz reveals how digestion impacts performance, mood, and overall well-being.