Karbolyn Fuel
EFX Sports

Karbolyn Fuel

High-Performance Carbohydrate Powder for Building Muscle*
Loads Muscle Tissue for Optimum Performance, Endurance, and Recovery*
9.5 out of 10 (164 Reviews)
2 Sizes
2.2 Lbs.
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7 Flavors
Blue Razz Watermelon
Choose a Flavor
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Price: $29.99 ($1.67 / Serving)
Flavor Rating: 9.5

Product Overview

EFX Sports Karbolyn Fuel. Designed to support Energy*, Endurance* and Recovery*
FUEL YOUR

MONSTER WORKOUTS

What is this “Performance Carbohydrate” Karbolyn?

Karbolyn® represents the dawn of a new era of carbohydrate supplementation. Derived from potato, rice and corn, this fast-acting, long-lasting, high-performance compound offers the best of both simple and complex carbohydrates.*

Karbolyn graph

Simple carbohydrates have the ability to enter the bloodstream quickly. However, they can also stimulate a strong “spike” due to a rapid rise and fall of insulin levels. This may be good for a quick burst of energy but not for sustained endurance.*

Complex carbohydrates do provide sustained endurance. But, they are slow to digest, and can leave you feeling bloated and lethargic.*

Karbolyn® Delivers The Best of Both Worlds
Karbolyn® is absorbed into the bloodstream like a simple sugar. It has also been shown to be absorbed as quickly as pure Dextrose (a simple carbohydrate). Yet, it still provides sustained energy.*

DON’T TAKE OUR WORD FOR IT...WHAT DOES THE STUDY SAY?

The Clinical Study sought to document whether or not Karbolyn® has a positive and sustainable impact on blood sugar levels in normal adults during aerobic activity. Data obtained from participants indicated that a simple sugar promoted a steep drop and subsequent “crash” at a predictable point in time. Karbolyn® gave an overall smoother decline in blood glucose level.*

Karbolyn® Study Data - Re: IRB No : 29443/1; KL-001 - Study: July 2014–March 2015

AVAILABLE IN 7 MUSCLE
FUELING FLAVORS

NEUTRAL
BLUE RAZZ WATERMELON
FRUIT PUNCH
CHERRY LIMEADE
ORANGE
KIWI STRAWBERRY
STRAWBERRY

NO ONE TESTS LIKE

Ingredients either Pass or Fail...and a 'Fail' is rejected and shipped back.

When you invest in EFX Sports products, you are putting your faith in the efficacy and purity of our ingredients, and the integrity of our brand. That's why we NEVER take that trust for granted.

From dock-to-dock, we own every phase and process to ensure that what's on the label is what's in the bottle...without question.

PHASE 1

INCOMING RAW MATERIAL TESTING
  • IDENTITY
    To confirm the ID of a given Raw Material and the accuracy of the Certificate of Analysis (COA) we use FTNIR (near infrared technology).
  • PURITY
    Vendor COA claims are checked for purity by HPLC, GC or ICP.
  • Heavy Metals
    We test for Arsenic, Cadmium, Lead and Mercury. Heavy Metals must be under the USP specified guidelines.
  • MICROBIAL
    We test for Total Plate count, Total Yeast and Mold count and Coliform bacteria to make sure that the Raw Material complies with the USP, AHPA and FDA guidelines.
  • PATHOGENS
    Raw Materials are tested for E. coli, Salmonella, and Staphylococcus aureus pathogens (as needed).
  • Drug Screen
    Raw Materials are tested for banned steroidal substances (as needed).

PHASE 2

DURING PRODUCTION TESTING
  • CLEANLINESS
    We perform ATP swab tests prior to batch production and allergen swab tests as needed to ensure equipment is free of potential contamination or microbes.
  • IDENTITY CHECK
    We use FTNIR to confirm the ID of a given in-process mix to ensure it contains the correct raw ingredients.
  • PURITY CHECK
    Purity is checked by using HPLC, GC, and/or ICP to ensure the in-process mix will create a final product that meets label claims.

PHASE 3

FINISHED PRODUCT TESTING
  • IDENTITY CHECK
    We use FTNIR to confirm the ID of a Finished Product.
  • Purity (label claim)
    We check the purity by HPLC, GC, and/or ICP if there is a label claim on the Finished Product COA.
  • MICROBIAL CHECK
    We test for Total plate count, Total Yeast and Mold count and Coliform bacteria to make sure that the Finished Product complies with specifications.
  • PATHOGENS CHECK
    We test again for the following pathogens, E. coli, Salmonella, and Staphylococcus aureus (as needed).
  • ALLERGENS
    We list the allergens, if present in the Finished Product.
  • HEAVY METALS CHECK
    We test the Finished Product for Heavy Metals contaminants (Arsenic, Cadmium, Lead and Mercury) and make sure they are under the USP specified guidelines.
  • DRUG SCREEN CHECK
    We use an outside 3rd party laboratory to conduct GC-MS/ HPLC-MS testing on finished products for banned steroidal substances, if needed.

Ratings & Reviews

Overall Rating
9.5
164 Ratings
Verified Buyer Rating
9.6
80 Ratings
Average Flavor Rating
9.5
7 Flavors
Top Rated Flavor
10
Laranja
By clicking the button above, you agree to entering the Bodybuilding.com Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
10
 
  • 9 Cherry Limeade
10
Verified Buyer
  • 10 Cherry Limeade

This Product is fantastic! I train Heavy and Hard everyday. Carb replacement is very important to me. Its Critical! Ive tried many different Carb supplements without much success until KARBOLYN. It replenishes my glycogen. I get a fantastic pump. My muscles stay full and hard. I have plenty of energy after training. It doesn't upset my stomach and it tastes great. Highly Recommend!!

10
 
  • 9 Strawberry
  • 10 Orange
  • 10 Neutral Flavor

Use: Protein + Karbolyn Before and After workouts Taste and Mixing: Amazing! Mix Orange or Strawberry with vanilla protein and it smooth and creamy “Orange Cream-Sicle”. The Neutral flavor is easily covered by any flavor no weird taste. If you let is sit for 5 to 10 mins it can “clump up” but it just settled, a quick shake “redistributes” it very easy. The clumping is not a mess of gu that can’t mix. This mixes easy from the start with any protein or BCAA I’ve use so far. The BreakDown Three days a week I am up at 5:00am straight to the kitchen for my shake (Protein + Karboltn) then in the gym by 6:15 to 6:30 and 50 mins of that is letting my pup out, driving, and walking to get to the gym. Needless to say I don’t have spare time in the morning. This shake fuels me through a 2 hour workout. (I normally only workout for and hour on these days in the morning) On the other four days a week I’m in the gym for an afternoon for at least 2 hours (Weight lifting and Cardio) and I never hit a wall. (keep in mind I am also using BCAA during this workout) I have used this for bulking, cutting and maintaining and it’s never failed to help promote energy throughout all my workouts. I have recently in addition to per and post started mixing this with my BCAA during and LOVE it! Seeing lot of progress over the last month of doing this. I feel at 100% on every exercise on every set! Supplements don’t make great workouts, they just help maximize the work you put in!

9
Verified Buyer
  • 7 Neutral Flavor

I mix Karbolyn with my morning shake. Nutrabio Java Whey (1 scoop), Nutrabio Chocolate Isolate (1 scoop), and Karbolyn (1 scoop). It is a good clean carb with no sugar (unlike most carbs). Another must have in the weight lifters arsenal from EFX. The neutral flavor adds a little bit of a different taste to the protein shake, but i have gotten used to it.

6
Verified Buyer
  • 8 Neutral Flavor

This product did have a neutral taste. I rated this product a 6 mainly due to its poor mixability. About 90% of it would mix but always someone leaving a small lump that would taste horrible when you get to it. I will be going back to Carbion from Allmax.

9
Verified Buyer
  • 10 Orange

This product is great! I've used Karbolyn for over two years now. What bothers me is the fact that the packaging changes without any notice, and in many cases, small adjustments are made to the nutritional composition of the product too. Considering many of those who take it count their calories and macros and pay close attention to what they consume, I don't find that okay with regards to loyal customers- not in the health and fitness industry!

9
Verified Buyer
  • 9 Blue Razz Watermelon

Since MusclePharm is reformulating their Recon which was my go-to. I had to find another source and this came to mind. If you are looking for a great taste, slushy like consistency with no crash, than give this a try. I was impressed!

9
Verified Buyer
  • 10 Blue Razz Watermelon

I am new to carb supplements, and this was recommended to me by my sister and coach. I LOVE IT! The flavor is AMAZING, and it mixes nicely, even without a blender ball or anything, you can just shake it up in a bottle with water, and you're good. The only thing I don't love about this product is the fact that it starts to settle a bit if you don't drink it fast enough. But it's no biggie, you can just shake it back up and you're back in business!

9
Verified Buyer
  • 7 Blue Razz Watermelon

I chose this flavor because it was very well reviewed but I didn't think it was anything great. Not bad but not that good either. The product works great though! I had to switch to a different intraworkout carb source since Glycofuse has been giving me tons of GI distress over the past 6 months (I had used it for 3-4 years with no problems). No GI distress with Karbolyn! I highly recommend this product but not this flavor in particular. I will be buying more Karbolyn soon.

10
Verified Buyer
  • 10 Neutral Flavor

Love this product, keeps my muscles feeling full and its a nice substitute in case I dont have any rice prepped for my post workout meal!

10
Verified Buyer
  • 10 Neutral Flavor

Mixes great, the flavor is non existent so it mixes well with my pre work out. I have this stuff for every work out, its really amazing and my body responds well to it.

10
Verified Buyer

I'm very grateful for this product if you need quick energy to burn Karbolyn is the ultimate drink trust me this thing is proven and tested. Thank you EFX and Dr.Jeff Golini.

10
Verified Buyer

This product was recommended to me from an Olympian winner at Bev Francis Powerhouse gym. I mix it with Xtend from Scivation and find I can blast thru my workouts. I do cardio before I lift and I know this product gives me the boost I need. I also mix it with my protein post workout shake. My dosage is that I take only half a scoop during training and half a scoop post and thats all I need. Thats only 50 grams of carb total. I always test a product by trying it then getting off it to see if there is any difference when going back on it. I know this product works and there is no digestive issues with it. I use the neutral flavor to mix with Xtend during my workout and with Dymatize Iso post workout. If I want to cut carbs I will not take it post but I always take it while doing my cardio. By the time I finish cardio and start lifting I have plenty of of fuel to blast thru my workout.

10
Verified Buyer

A staple for my pre & post workout & the orange flavor tastes great! If you're like me with a high metabolism you should try it, especially if you workout early in the morning when your energy and carbs are low.

10
Verified Buyer
  • 10 Neutral Flavor

I decided to go with the neutral flavor because I mix it with my protein shake. Great product!

What's in EFX Sports Karbolyn Fuel

2.2 Lbs. Blue Razz Watermelon
Serving Size 53g (One Scoop)
Servings Per Container18
Amount Per Serving % Daily Value
Calories 200       
Calories From Fat 0       
Total Fat 0 g 0%
Saturated Fat 0 g 0%
Cholesterol 0 g 0%
Sodium 0 g 0%
Total Carbohydrates 50 g 16.7%**
Dietary Fiber 0 g 0%
Sugars 0 g
Protein 0 g 0%
Karbolyn® 50 g
(homopolysaccharide derived from potato, rice and corn)       
** Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value (DV) not established
Other Ingredients:
Citric Acid, Sucralose, Natural & Artificial Blue Raspberry, Watermelon, & Vanilla Flavors, and FD&C Blue #1

Directions For Karbolyn Fuel:

Suggested Use for Individuals

As a dietary supplement, mix 1 scoop in a shaker cup with 16 oz of water and drink 30 minutes before exercise.

Usage Guidlines 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.

Warnings: Keep out of the reach of children. STORAGE: Protect from heat, light and moisture. Store at 59-86°F (15-30°C)

* 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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