High-Performance Carbohydrate

Karbolyn Fuel

(16 customer reviews)


  • Fast-Absorbing Carb With Complex Carb Sustainability
  • Glycogen Loading Fuel Source
  • Sugar-Free, Gluten-Free, Stimulant-Free
  • Invented By EFX Sports Scientist Dr. Jeff Golini
  • Informed Sport Certified, Banned-Substance Tested
  • Manufactured By Us – We Control ALL Production


  • Perfect Fuel Source: Use Pre, Intra, Post Training
  • Enhance Athletic Endurance
  • Intensify Muscle Pumps For Bodybuilders
  • Maintain High-Intensity Training Levels
  • Maximize Strength & Power Output


MSRP: $49.99 - $79.99

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You have up to one year to get your money back for any first-time purchase. You'll have until Jan 25, 2023 to get a full refund if you buy today.

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Estimated Shipping Date: January 26

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Made In The USA

We proudly make our own products at All American Pharmaceutical. "Trust The Source".



Karbolyn is a clinically studied (with peer-reviewed, published research) carbohydrate supplement powder sourced from potato, rice, and corn. It’s designed for elite athletes looking for a fast, safe, and high-performance way to quickly and easily load muscles with lasting energy and for faster recovery. “Carb load” with Karbolyn in minutes, not hours before your event or training session!



Karbolyn Fuel Benefits
Karbolyn Fuel Key Point


Absolutely nothing fuels your monster workouts like Karbolyn! It enters the bloodstream like a simple sugar, yet it still provides sustained energy without "crashing". Karbolyn is absorbed faster than dextrose, simple sugar, bread, pasta, rice, and other carbohydrate products sold in the marketplace - simple or complex. Pros worldwide use it for a reason!



Do you want to Outlast, Outmuscle, and Outperform anything in your way? Then stop messing around with overhyped copycat products that would never make it past our lab. Use Karbolyn to maximize and maintain high-intensity training levels, power output, for greater muscle hardness and fullness… and pumps like you’ve never experienced before!


Forget sugar-filled “sports” drinks that do very little to help fuel your game or workout. Karbolyn is 100% sugar-free, gluten-free, stimulant-free, and vegan-friendly. Ever use a carb powder that gels or clumps like cement? Most are shocked at how easily Karbolyn mixes and how delicious it tastes. The bottom line: Karbolyn ensures you are optimizing your glycogen stores before, during, and after training…without feeling bloated or cramping!



EFX Sports is part of a very small, elite group of brands that actually make their own products. That’s why we can unquestionably guarantee Karbolyn always meets label claims and is 100% banned-substance free (certified by Informed-Sport). When you use Karbolyn by EFX Sports, you have the purest, most potent carbohydrate product available anywhere!

Karbolyn Fuel How To Use

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Frequently Asked Questions

Blue Razz Watermelon

Supplement Facts

Serving Size 53g (One Scoop)

Servings Per Container 37 (4.4lbs), 18 (2.2lbs)

Amount Per Serving % Daily Value
Calories 200
Calories from fat 0
Total Fat 0g 0
Saturated Fat 0g 0
Cholesterol 0g 0
Trans Fat 0g 0
Sodium 0g 0
Total Carbs 50g 16.6
Dietary Fiber 0g 0
Sugars 0g 0
Protein 0g 0
Karbolyn (homopolysaccharide derived from potato, rice and corn) 50g **

Percent Daily Values are based on 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

**Daily Value (DV) not established.

Other Ingredients: Citric Acid, Sucralose, Natural & Artificial Blue Raspberry, Watermelon, & Vanilla Flavors, and FD&C Blue #1.

Blueberry Lemonade
Cherry Bomb
Cherry Limeade
Chocolate Overload
Fruit Punch
Kiwi Strawberry
Raspberry Lemonade
Rainbow Candy
Tropical Storm
SUGGESTED USE FOR INDIVIDUALS: As a dietary supplement, mix 1 scoop in a shaker cup with 16 ounces of water and drink 30 minutes before exercise. USAGE GUIDELINES FOR INTENSE TRAINING OR ATHLETIC EVENTS: BEFORE TRAINING - Drink 1 serving 30 minutes before exercise. DURING TRAINING - Sip on 1 serving during exercise. AFTER TRAINING - Drink 1 serving after exercise.

16 reviews for Karbolyn Fuel

  1. John Wertz (verified owner)

    Best tasting Karb drink out there. Tons of energy. Stamina for my entire workout. Seriously love this stuff!!!

  2. Luke Ciccone

    This is premium high octane fuel for your workout. Consistent energy, no sugar crash. Lasts for over an hour of weightlifting for me.

  3. Robert Ruf

    Gives me quick energy usually lasting about an hour on one serving. I mix in 1200mg of l-citrulline for a monster pump.

  4. Jeff

    I’ve been working in Barcelona for about a month now – here without my Karbolyn. I can tell a big difference, and miss the product greatly. You can’t beat the stuff – makes for a much better, and more productive workout.

  5. Eodney

    Excellent product to get you through your workout with a great pump!

  6. Curtis

    Karbolyn has always been a superior product and never disappoints.

  7. Antoine Lee

    Great stuff does what it says

  8. Bill

    Never start a workout without it! Add 10 grams of
    L Arginine for a monster pump!

  9. nemo

    This is one of the best carbohydrate sources ive ever used. I race mountain bikes and taking your hands off the bars to grab food can get dangerous. the flavor of the blue razz watermelon should be called “cotton candy” its pretty sweet with little bitter finish. that is the only reason i didnt give it 5 stars because the performance of this product is second to none!

  10. Tommy Burke

    Karbolyn is awesome!!! Great energy, great pumps, great taste!!!! I take it before, sip on it during & mix it with my isolate after. No workout is complete without Karbolyn!!!

  11. Jonathan Cotler

    Clean, amazing and refreshing absolutely no issues at all

  12. David

    Gives me major acid reflux can’t sleep at night!

    • EFX Sports

      Hi David, thanks for the feedback. We haven’t ever had anyone tell us that before. Is it the only product you are using that could cause this issue?

  13. Richard

    Great product. I purchased Blue Razz watermelon.

  14. Ron

    Great product. Fuel for the workout. A bit pricey so hopefully that comes down.

  15. Audra Cooper

    I got neutral to skip the sucralose and paired it with Nuun tabs to add flavor. I really liked it alot! Worked very well! I felt great energy through out a really tough workout.

  16. zoomdisi2.3

    Digests very fast,provides fantastic energy and creates a fantastic pump.

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