Pre-Workout for Muscular Endurance | Fight Fuel – Bone Labs

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Kettlebell and jump rope on a black rubber gym floor

Muscular Endurance Pre-Workout

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Not sure yet? Try the $4.99 sample pack first →

Pre-Workout for Muscular Endurance

Muscular endurance is about how long your muscles keep working. Training builds it, and the right pre-workout helps you get more quality work out of each session. Fight Fuel is built around the ingredients that matter for long, demanding efforts.

283mg caffeine from three sustained-release sources, paired with 100mg L-theanine
1,100mg electrolytes for hydration through heavy sweat
Endurance Matrix: 6,000mg L-citrulline, 2,500mg beta-alanine, 2,500mg betaine anhydrous
Every dose disclosed. No proprietary blends.

Learn how to train it in our guide: What Is Muscular Endurance?

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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Bone Labs Fight Fuel Pre-Workout — Fruit Punch

Sale

Bone Labs Fight Fuel Pre-Workout — Fruit Punch

Bone Labs Fight Fuel Pre-Workout — Fruit Punch

$45.99 USD

Sale price $45.99 USD Regular price $54.99 USD
Bone Labs Fight Fuel - Sample pack - Fruit Punch, 2 servings

Bone Labs Fight Fuel - Sample pack - Fruit Punch, 2 servings

Bone Labs Fight Fuel - Sample pack - Fruit Punch, 2 servings

$4.99 USD

Sale price $4.99 USD Regular price

Comparison chart of Bone Labs Fight Fuel versus a standard pre-workout on energy delivery, hydration and formula transparency

Built in the USA

Made IN the USA

Formulated and manufactured by Pure Private Label, a U.S.-based production partner.

Independently Verified

Eurofins, one of the world's leading testing and certification groups, independently evaluated our manufacturing facility.

GMP Certified

Every batch is produced in a facility built and operated to GMP standards, the FDA-recognized benchmark for supplement quality and safety.

Transparent formula

Full-Disclosure Label
Every ingredient, every dose, printed in the open. Zero proprietary blends. Nothing to hide.

Formula Breakdown

Energy Complex — 283mg total caffeine

Three phase caffeine absorbtion for fast ignition and sustained output.

Caffeine Anhydrous (50mg) hits immediately.

Infinergy® Dicaffeine Malate (133mg) extends the energy without the drop.

Terracaf™ Natural Caffeine (100mg) supports long-term energy.

Paired with L-Theanine (100mg) to smooth the energy curve

Hydration & Electrolytes — 1,100mg

Designed for high-sweat environments and long training sessions where dehydration kills performance.

Sodium (600mg)

Potassium (200mg)

Magnesium (300mg)

Endurance Matrix

Delay fatigue

L-Citrulline (6,000mg) for maximum oxygen delivery and blood flow.

Beta-Alanine (2,500mg) to buffer lactic acid and delay the burn

Betaine Anhydrous (2,500mg) for cellular hydration and power output.

Focus & Resilience

Stay focused with Nootropics

L-Tyrosine (1,000mg) sharpens focus and reaction speed under fatigue.

Rhodiola Rosea (200mg) a nootropic that alleviates mental fatigue and stress.

Taurine (1,000mg) calms CNS overstimulation and supports neuromuscular function.

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Bone Labs Fight Fuel - Sample pack - Fruit Punch, 2 servings

Bone Labs Fight Fuel - Sample pack - Fruit Punch, 2 servings

$4.99 USD

Regular price Sale price $4.99 USD
Bone Labs Fight Fuel Pre-Workout — Fruit Punch

Bone Labs Fight Fuel Pre-Workout — Fruit Punch

$45.99 USD

Regular price $54.99 USD Sale price $45.99 USD

Cannot place order, conditions not met:

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Tarafying

I haven’t used a pre-workout in quite a while, so grabbing this honestly helped motivate me to ease back into my regular workout routine. I tried the fruit punch flavor and was pleasantly surprised by how good it tastes. A lot of pre-workouts have that overly tart, sour, or chemical taste, but this one was much smoother and easier to drink.It also mixed really well in my shaker bottle. After just a couple of shakes, it dissolved quickly without leaving a bunch of gritty powder at the bottom. I took it before my workout and felt it start kicking in around 15 minutes later. I did get the usual pre-workout tingles, but nothing that felt too intense or uncomfortable. Once it kicked in, I felt ready to get started and it helped keep me going throughout my workout.I also really appreciate that it includes electrolytes, especially since hydration support is always a nice bonus when working out. The formula feels well thought out, and I like that the label clearly lists everything instead of hiding behind a vague blend.For the amount you get, this is a really good value. The container is large, the price point is fair, and the quality seems excellent. This is definitely my new go-to pre-workout, and I’m excited to keep using it as I get back into my fitness routine.

Bone Labs Fight Fuel Pre-Workout — Fruit Punch

Polsvoice

I have taken a lot of pre workouts over the years but this is the first time I have come across one that is supposed to be formulated especially for fighters so I figured why not and picked it up.The tub is way larger than it needs to be for this amount. This could have been in a tub half the size but marketing big… I get it. The pre mixes well and goes down smooth. Taste I would say is a 9/10 but that’s not really important.It hits in about 20 minutes and I’d say it’s as good as any mid to high stim pre workout with no noticeable crash or bad side effects. I’ll continue using this one and might even try another flavor if it’s available. 5 stars!

Bone Labs Fight Fuel Pre-Workout — Fruit Punch

Amazon Customer

Great for sustained energy and focus without the jitters.I’ve tried a lot of pre-workouts over the years, and this one quickly became a favorite. I have used this product twice now prior to my workouts, and it takes a performance-focused approach built around endurance, hydration, and focus rather than just hitting you with excessive stimulants. It feels particularly well-suited for longer workouts, conditioning sessions, or combat sports.Energy & Performance:* Smooth Boost: It kicks in about 20–30 minutes after taking it. It’s a clean, alert energy that gets you locked in for drills and conditioning without making you feel shaky or overstimulated.* No Crash: The energy stays steady throughout the entire workout. I didn't experience the sudden drop-off or hard crash that usually comes with high-stimulant products.* Good Hydration: Thanks to the electrolytes, taurine, and citrulline, I felt less drained during intense, sweaty rounds and could keep my intensity up.Flavor & Mixability:The mixability is excellent with no clumping or chalky residue. The flavor is refreshing and easy to drink, completely avoiding that overly sweet, artificial taste. Just a heads up: if you mix it in 16 ounces of water, the flavor becomes extremely mild—almost unflavored—so you may want to use less water if you prefer a stronger taste.Packaging & Convenience:The product is securely sealed for safety and freshness, with a clear expiration date on the bottom. It also includes a large, accurate measuring scoop. This has been really convenient for my first two days, as it allows me to start with the smaller amount and ramp up the dose slowly to acclimate to the caffeine.Overall:It’s a well-designed product with a clear purpose. If you want sustained energy, hydration, and reliable performance over a cheap caffeine rush, this is definitely worth trying.

Bone Labs Fight Fuel Pre-Workout — Fruit Punch

Scott

I haven't tried a lot of pre-workout powders, so I don't have a huge number to compare this one to, but I was pleasantly surprised by it. It mixed easily with water and didn't leave any clumps behind. The flavor was also really enjoyable, which made it easy to drink before my workout. I drank it about 30 minutes before exercising so I had time to finish the 12 ounces of water and let it settle. By the time I started my workout, I felt more focused and found it easier to push myself through my usual routine. One thing I really appreciated was that I didn't experience the racing heartbeat or jittery feeling I've had with some other pre-workouts. The energy felt much smoother and more manageable. The only side effect I noticed was a tingling, itchy sensation that came and went during my workout and for a little while afterward. It felt like pins and needles across parts of my body and lasted for about two hours. It wasn't painful, but it was definitely noticeable. Aside from the tingling, I had a really positive experience. It tasted good, mixed well, gave me steady energy without the jitters, and helped me stay focused throughout my workout.

Bone Labs Fight Fuel Pre-Workout — Fruit Punch

Amazon Customer

Most pre-workouts hit like a sledgehammer, leaving your heart racing before you even finish warming up. Fight Fuel dials in a surprisingly steady, focused drive instead. The sustained-release caffeine gives you a clean ramp-up that lasts through heavy conditioning sets without the skin-crawling jitters or an awful post-workout crash. The electrolyte dose is noticeably effective for staying hydrated during long, sweat-heavy sessions.Pros:Clean Energy Curve: Delivers consistent stamina without feeling over-stimulated or hyperactive.Solid Hydration & Endurance: The 1,100mg electrolyte blend paired with L-Citrulline keeps muscle fatigue and cramps at bay.No Sudden Crash: Tapers off smoothly so you can go about your day normally afterward.Cons:Sweet Flavor Profile: The Fruit Punch is on the sweeter side; you’ll want to mix it with at least 14–16 oz of cold water to cut the intensity.Moisture Sensitive: Like most heavy-electrolyte powders, it can clump if the tub is left in a humid gym bag, so keep the seal tight.

Bone Labs Fight Fuel Pre-Workout — Fruit Punch