HOME OF NATURAL ENDURANCE AND PERFORMANCE SUPPLEMENTS

Clinically inspired. Athlete approved.

You put in
the miles.
Now get more
out of them.

Running faster isn't always about running more. Discover three performance formulas designed to support oxygen delivery, oxygen utilization, and the fueling your training demands.

5K • 10K • Half Marathon • Marathon
4.8/5 ★★★★★ 9,763 reviews
10,000+ Endurance athletes
100% Drug-free formulas
90-day Money-back guarantee
Why progress plateaus

Training harder
isn't always
the answer.

You've built your aerobic base. You're consistent with your mileage. You've added intervals, tempo runs, and recovery days. But as you become a more experienced runner, improving your personal records gets harder.

Your body relies on several systems to sustain performance. That's why BRL Sports developed targeted nutritional formulas to support the systems behind endurance.

Meet your running performance stack

Three formulas.
One goal.

Each formula targets a different system behind your running. Use one where you need it most, or run all three together.

01Oxygen delivery
EPO Boost – The World’s #1 Endurance Supplement

EPO-Boost

Support your oxygen delivery. Go the extra mile.

Formulated to support the body's oxygen-delivery system, stamina, and endurance during demanding training.

Best forRunners focused on endurance and sustaining performance over longer distances.
$59.95★★★★★ 4.8 · 908 reviews
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02Oxygen utilization
VO2-Boost Sports Endurance Performance Enhancer

VO2-Boost

Support your VO₂ max. Chase your next PR.

Six-ingredient formula designed to support oxygen utilization, aerobic capacity, and endurance performance.

Best forRunners chasing faster race times and looking to get more from their training.
$59.95★★★★★ 4.8 · 146 reviews
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03Fuel + hydrate + recover
Trifuel Energy, Endurance & Recovery Sports Drink

TriFuel

Fuel every mile. Hydrate every session.

Three-in-one endurance drink with carbohydrates for energy, electrolytes for hydration, and BCAAs to support recovery.

Best forRunners fueling long runs, demanding workouts, and race-day efforts.
From $59.95★★★★★ 4.9 · 212 reviews
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Find your formula

What's your main
running goal?

Pick the goal that matters most this training cycle and we'll point you to the formula built for it.

Your match · Oxygen utilization

VO2-Boost

Support your VO₂ max. Chase your next PR.

Built for runners chasing faster race times. Six ingredients, including rhodiola, cordyceps and quercetin, to support oxygen utilization, aerobic capacity and endurance performance.

Take 30–60 min pre-runRhodiola + cordyceps4.8★ · 146 reviews
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Pairs with EPO-Boost and TriFuel in the Endurance Stack
VO2-Boost Sports Endurance Performance Enhancer
Why use all three?

Deliver.
Utilize. Fuel.

Complementary nutritional support for runners committed to getting more out of their training. One order, one price, all three systems covered.

Best value · Save 25% on subscription
EPO Boost – The World’s #1 Endurance Supplement
Trifuel Energy, Endurance & Recovery Sports Drink
VO2-Boost Sports Endurance Performance Enhancer
DeliverEPO-Boost · daily foundation
FuelTriFuel · before, during, after
UtilizeVO2-Boost · pre-training
The Endurance Stack

EPO-Boost + VO2-Boost + TriFuel

Three formulas for the whole effort. Includes EPO-Boost (60 servings), VO2-Boost (60 servings) and TriFuel (20 servings).

TriFuel flavor
$134.89$44.96 per formula
Save $44.96 every delivery
Subscribe to the Stack
90-day money-back guaranteeThird-party testedDrug-free
How runners use the stack

Your stack, by race distance

Every day

EPO-Boost

2 capsules twice daily with meals throughout your training block. The daily foundation.

30–60 min before

VO2-Boost

2 capsules with water before your session or race.

Before + after

TriFuel

One serving before you start, then one after as part of recovery.

Based on BRL label directions. Follow the label and speak with a healthcare professional before starting any supplement.

Trust & credibility

Built for athletes
who take performance
seriously.

Trusted by endurance athletes since 2008, with formulas third-party tested for banned substances, quality and label accuracy.

Drug-free formulas

Third-party tested for banned substances, quality and label accuracy.

Clinically inspired ingredients

Including rhodiola, cordyceps, quercetin, B-vitamins and chelated iron.

10,000+

Endurance athletes

Runners, cyclists and triathletes training with BRL.

4.8/5

Store rating

From 9,763 verified reviews.

TrackAdd a video
TriFuel

Julia Gradilla

Masters track athlete on the road to the World Masters Athletics Championships in Daegu, with TriFuel in her kit bag.

RunnerAdd a video
EPO-Boost

Will Morrell

Fresh off a run in his EPO-Boost singlet, Will talks through his favorite BRL formula.

Endurance athleteAdd a video
The Endurance Stack

Shane York

Shane breaks down the BRL lineup he trains with, including TriFuel, EPO-Boost and VO2-Boost.

The 90-day guarantee

Your next PR
starts here.

You've already committed to the training. Now give yourself 90 days of consistent nutritional support designed for endurance performance. If you're not satisfied, we'll refund your first order.

Applies to your first order, once per person, in the USA. Excludes purchases from international distributors or resellers. See full refund policy.
Try the Stack
Your next training cycle

Stop just putting in the miles. Start getting more out of them.

Explore BRL's three running performance formulas and find the right support for your next training cycle.

Clinically Inspired. Athlete Approved.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Consult a healthcare professional before starting any supplement. If you compete in a tested sport, check your governing body's rules.
© BRL Sports. Individual results vary. Prices shown in USD.
EPO Boost – The World’s #1 Endurance SupplementVO2-Boost Sports Endurance Performance EnhancerTrifuel Energy, Endurance & Recovery Sports Drink
The Endurance StackFrom $134.89 · Save 25%
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