• Gnarly pre-workout supplement package with strawberry lemonade flavor on a white background
  • Depiction of new product design
  • Natural Pre Workout Gnarly Strawberry Lemonade Caffeine Free
  • Natural Pre Workout Gnarly Strawberry Lemonade Caffeine Free Back of Package
  • Back of a Gnarly sports nutrition package with supplement facts and branding.
  • Gnarly supplement package with nutritional information on a white background
  • Red Gnarly supplement package with 'Supplement Facts' label on a gray background
  • Two Gnarly pre-workout powder packets, one red and one beige, on a light gray background.
  • Gnarly Pre-Workout - Gnarly Nutrition
  • Gnarly Pre-Workout - Gnarly Nutrition
  • Gnarly Pre-Workout - Gnarly Nutrition
1 11
Rated 4.7 out of 5
Based on 142 reviews

Pre-Workout

Pre-Workout

$48.95
$48.95
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Shipping calculated at checkout.

Science-backed, stimulant-smart, NSF Certified — everything you need to show up ready and nothing you don’t.

Explosive Energy
Stamina & Focus
Endurance Boost
Flavor
Size
Free shipping on orders over $75
30-day money-back guarantee
Trusted by 55,000+ athletes
NSF Certified

Benefits

Gnarly Pre-Workout is the performance primer built for athletes who need to show up ready — whether it's a 5am gym session before work or a hard effort in the mountains. Science-backed ingredients at effective doses, no proprietary blends, no junk. Just a clean, focused energy formula that works as hard as you do and passes every test that matters.

  • Multi-ingredient performance formula — caffeine, citrulline, beta-alanine, creatine, and betaine at clinically relevant doses
  • NSF Certified for Sport — the only pre-workout certification trusted by USADA and pro sports leagues
  • Available caffeinated and caffeine-free — choose what fits your training and your schedule

Function

A great pre-workout isn't just about energy — it's about priming every system that determines performance. Gnarly Pre-Workout is formulated with a multi-ingredient approach because different ingredients target different physiological levers, and the best results come from addressing all of them together.

Caffeine (Natural) is the most well-researched ergogenic aid in sports nutrition. It reduces perceived effort, sharpens focus and reaction time, and directly improves endurance performance by blocking adenosine receptors in the brain. The natural caffeine in Gnarly Pre provides clean, sustained energy without the sharp crash associated with synthetic sources.

L-Citrulline / Citrulline Malate drives nitric oxide production, which dilates blood vessels and improves blood flow to working muscles. The result is better oxygen delivery, improved nutrient uptake, enhanced muscle pumps, and a meaningful impact on power output and endurance during high-intensity work.

Beta-Alanine buffers lactic acid accumulation in muscle tissue, extending the time before fatigue forces performance decline during high-intensity efforts. It's the ingredient responsible for the harmless tingling sensation (paresthesia) some athletes experience — a sign it's working. Beta-alanine benefits are cumulative, so consistent use is key.

Creatine Monohydrate supports ATP regeneration — the energy currency used in explosive, high-power efforts — and is one of the most extensively researched performance supplements in existence. Its inclusion in the pre-workout formula supports both immediate performance and long-term adaptation.

Betaine Anhydrous supports cellular hydration and osmolyte balance, improving power output and muscular endurance. Research consistently shows betaine improves both strength and endurance metrics when dosed appropriately.

B Vitamins support cellular energy metabolism — ensuring your body efficiently converts the fuel you eat into the ATP your muscles actually run on.

How to Use

Mix 1 scoop with 8–12 oz of cold water. Consume 20–30 minutes before training.

For caffeine sensitivity or evening training sessions, choose the Caffeine-Free option. Effects are active for 2–4 hours depending on individual metabolism; caffeine has a half-life of approximately 5 hours — plan timing accordingly.

Stack: Follow with Gnarly Hydrate during your session and Gnarly Whey or Vegan Protein post-workout for a complete pre-to-post training system.

Ingredients

Active Ingredients (Strawberry Lemonade Caffeinated, Mango): Citrulline Malate 2:1 (5g), Vegan BCAAs 2:1:1 — L-Leucine, L-Isoleucine, L-Valine (4g), CarnoSyn® Beta-Alanine (2.5g), Natural Caffeine from Green Tea (180mg), Panax Ginseng Root Extract (150mg)

Active Ingredients (Strawberry Lemonade Caffeine Free): Citrulline Malate 2:1 (5g), Vegan BCAAs 2:1:1 — L-Leucine, L-Isoleucine, L-Valine (4g), CarnoSyn® Beta-Alanine (2.5g),  Panax Ginseng Root Extract (150mg)

Other Ingredients (Strawberry Lemonade): Stevia Leaf Extract, Natural Flavors, Citric Acid, Malic Acid, Beet Juice Powder (for color), Calcium Silicate, Silicon Dioxide

Other Ingredients (Mango): Stevia Leaf Extract, Natural Flavors, Citric Acid, Malic Acid, Beet Juice Powder (for color), Beta Carotene (for color), Calcium Silicate, Silicon Dioxide

Other Ingredients (Strawberry Lemonade Caffeine Free): Stevia Leaf Extract, Natural Flavors, Citric Acid, Malic Acid, Beet Juice Powder (for color), Calcium Silicate, Silicon Dioxide

Gnarly Effect

Some benefits are immediate: caffeine's focus and energy effects are active within 30–45 minutes. Citrulline's pump and blood flow benefits are active within a similar window.

Beta-alanine and creatine are cumulative — consistent daily use for 3–4 weeks is required before the full performance benefits are realized. Betaine benefits also compound with consistent use over time.

Results vary based on training intensity, diet, sleep, and individual physiology, but may include improved training intensity and volume, faster warm-up times, extended time to fatigue during high-output efforts, and improved strength and power output over time with consistent use.

Return Policy

If you’re not 100% satisfied, return your product within 30 days (less than half used) for a full refund, and we’ll also replace any items that arrive damaged. Exchanges are available, and return shipping may apply.
Learn More >

FAQs View full details

Athlete Tested, Community Loved.

From mountain athletes to everyday grinders, we're trusted by people who demand more from their nutrition — and themselves.

Reviewer

“I’m a huge proponent for real food on the bike— sandwiches, pizza, burritos etc. Gnarly Nutrition Fuel20, Hydrate, protein & creatine really round out my nutrition. It’s easy to pack, all natural and tastes great too." —Lael Wilcox

Reviewer

“The mountains are where I want to spend my days, preferably on my bike with friends, the further out the better. Gnarly products keep me going so I can spend more time out there." —Eric Porter

Why Choose Us?

Because what you put in your body matters. We obsess over quality, transparency, and performance so you don’t have to.

Science-Backed, Fully Transparent

Science-Backed, Fully Transparent

No proprietary blends. No filler. Every ingredient is dosed with purpose and backed by research.

Built as a System

Built as a System

Everyday, before, during, and recovery nutrition designed to work together across your entire training cycle.

Clean Ingredients

Clean Ingredients

Vegan-friendly options, minimal allergens, no artificial colors or flavors. Fuel that works for more bodies.

Compare Us

Features Gnarly Other Brands
Non GMO
NSF Certified. Third-party Tested
Soy Free
Gluten Free
No Proprietary Blends
Science-back Formulas

*NSF Certified for selected products only

Frequently Asked Questions

No fine print, no confusion. These are the questions we hear most about our products, our standards, and how Gnarly fits into real training days.

Gnarly PRE contains BCAAs, do I still need to take Gnarly BCAAs?

We recommend taking Gnarly PRE 20-30 minutes before your workout, drinking Gnarly BCAAs during your workout and then following up with your favorite Gnarly protein. This keeps leucine levels (one of the branched chain amino acids critical to preventing muscle breakdown and promoting muscle growth) in your blood high and maximizes the benefit you get from your training while minimizing soreness and fatigue.

When I take Gnarly PRE my face and hands tingle, is this normal?

Tingling in your hands and face after taking Gnarly PRE is completely normal. Gnarly PRE includes Beta Alanine, an ingredient that increases muscular carnosine levels and helps buffer muscular acidity. Beta Alanine also causes “pins and needles” type tingling, the medical term for which is paresthesia. Paresthesia is a harmless side effect but can be reduced or avoided by taking a smaller dose of Gnarly PRE.

I'm sensitive to caffeine, can I still take Gnarly PRE?

If 180mg of caffeine is a bit too much for you, remember that Gnarly Preworkout comes in a caffeine free strawberry lemonade flavor. We also have a lot of athletes that end up mixing ½ scoop of the caffeinated Gnarly Preworkout with ½ scoop of the caffeine free Preworkout - this provides a much more moderate 90mg of caffeine/serving while providing full doses of BCAAs, Beta Alanine and Citrulline Malate.

When should I take Gnarly PRE?

We recommend taking Gnarly PRE 20-30 minutes before your workout/training session.

I lost my scoop!

1 Serving of Gnarly Preworkout is 14-15g.  14-15g of powder is approximately 1 Tablespoon.

Where’s the scoop?!

No, we didn’t forget yours. We’ve come to the hard decisions to ditch our scoops for the sake of Mother Nature.

Losing the scoops will save an estimated 28,000lbs (that’s a Freight Ship with Rocky Balboa as the Captain) of plastic per year. It’s a no brainer for our beloved Earth.

Now don’t just start pouring powder into your drinks willy-nilly. Have a regular spoon laying around? Good. Here’s the kitchen equivalent:

2 scoops with 10-12 oz of liquid, or 1/3 cup (50 grams) with 10-12 oz of liquid.

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average rating 4.7 out of 5
Based on 142 reviews
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93% of reviewers would recommend this product to a friend
142 Reviews
Reviewed by Jon L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

*****

The best!

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Reviewed by Albert C.
Verified Buyer
Rated 3 out of 5
Review posted

pretty good

Flavor is okay, not too strong or overly sweet. Definitely feel an energy boost at the gym. Does give me a stomach ache though, trying a smaller dose to see how that goes.

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Gnarly Nutrition

Hi Albert! Sorry to hear you weren't completely over the moon for the Mango Pre. I'm glad you felt an energy boost, but I'm sorry for the stomach ache! Beta alanine can be tough on your stomach if you haven't eaten, eaten very little, or if you're just not used to taking it. Trying a smaller dose could be helpful for you!

-Gnarly Team

Reviewed by Burke M.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Very Clean. Great Product.

I enjoy the non stim version of the pre workout. Its a much cleaner than the mainstream pre workouts and doesn't upset my stomach.

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Reviewed by Greg M.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Always reliable

When you want that great pump this mix doesn’t fail. Allows you to push harder during any exercise.

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Reviewed by Greg M.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great pump

This pre workout is very flavorful and does its job

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