---
product_id: 7397023
title: "EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 39 Servings (Neutral)"
brand: "efx sports"
price: "53704 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Efx Sports"
url: https://www.desertcart.hu/products/7397023-efx-sports-karbolyn-fuel-fast-absorbing-carbohydrate-powder-carb-load
store_origin: HU
region: Hungary
---

# Fast-acting absorption Vegan-friendly formula Peak performance boost EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 39 Servings (Neutral)

**Brand:** efx sports
**Price:** 53704 Ft
**Availability:** ✅ In Stock

## Summary

> Unleash Your Inner Athlete! 🏆

## Quick Answers

- **What is this?** EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 39 Servings (Neutral) by efx sports
- **How much does it cost?** 53704 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/7397023-efx-sports-karbolyn-fuel-fast-absorbing-carbohydrate-powder-carb-load)

## Best For

- efx sports enthusiasts

## Why This Product

- Trusted efx sports brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fuel Your Performance:** Experience rapid energy without the crash.
- • **No Bloating, No Crash:** Enjoy fast absorption without discomfort.
- • **Quality You Can Trust:** Manufactured in-house with rigorous testing.
- • **Elite Athlete Approved:** Clinically studied for optimal results.
- • **Sustained Energy Source:** Perfect for pre, intra, or post-workout.

## Overview

EFX Sports Karbolyn Fuel is a fast-absorbing carbohydrate powder designed for elite athletes. Sourced from potato, rice, and corn, it provides sustained energy without the crash, is sugar-free, gluten-free, and vegan-friendly, and is manufactured in-house with rigorous quality testing to ensure purity and potency.

## Description

Buy EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 39 Servings (Neutral) on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Game-Changing Energy for High-Intensity Training - I’ve been using EFX Sports Karbolyn Fuel for several weeks now, and I’m consistently impressed—this carbohydrate supplement truly delivers on its promises. What I Love: • Lightning-Fast Fuel with Staying Power Karbolyn absorbs quickly—like a simple sugar—but provides steady, sustained energy without the dreaded crash. It outperforms dextrose, rice, and other carb sources easily. • Clean & Athlete-Approved Formula The product is sugar-free, gluten-free, stimulant-free, and vegan-friendly. Plus, it’s made in-house and certified by Informed-Sport, so I know it’s safe and free of banned substances. • Versatile & Effective I use it before, during, or after my workouts for energy, endurance, and recovery. It also helps with muscle pumps and fullness—exactly what I need for lifting sessions. • Easy to Mix & Tasty No clumping or gritty textures. It blends easily and the flavored options (like Blue Razz Watermelon or Fruit Punch) are refreshing—not overly sweet. ￼ A Couple of Minor Drawbacks: • Pricey for a Carb Supplement At around $50 for the 4.4 lb tub (roughly $0.73 per ounce), it’s a premium option, but for the performance gains, it’s worth it. • Flavor Choices Might Be Hit or Miss While the variety is nice, some flavors may not suit everyone’s taste. I’d love to see a few more natural or lighter options. ⸻ Overall Impression: EFX Sports Karbolyn Fuel has become an essential part of my training regimen. For anyone looking for rapid-absorption carbs that support serious workouts—without crashes, bloating, or shady ingredients—this is a top-tier option. If it were any cleaner or more effective, I’d sign up immediately. Highly recommend for serious athletes and fitness enthusiasts aiming to push their limits.
Review: Fantastic Energy Source for Long Runs! - The EFX Sports Karbolyn Fuel (Blue Raspberry) has been a game-changer for my long-distance runs! It provides a steady, reliable source of energy without the crashes I’ve experienced with other carb-based supplements. I feel sustained endurance throughout my runs, and it helps keep my energy levels up without any stomach discomfort. The Blue Raspberry flavor is refreshing and easy to drink, not overly sweet or artificial-tasting. It mixes well with water and doesn’t leave any chalky residue. I’ve noticed a big difference in my performance and recovery since using Karbolyn, and it’s now a staple in my training routine. If you need a fast-absorbing, long-lasting energy source for endurance activities, EFX Sports Karbolyn Fuel is an excellent choice. Highly recommend!

## Features

- FAST-ACTING FUEL: Karbolyn is a clinically studied (with peer-reviewed, published research) carbohydrate supplement powder sourced from potato, rice, and corn. It’s specifically designed for elite athletes looking for a fast, safe, and effective way to quickly and easily load their muscles with lasting energy and promote faster recovery.
- PEAK PERFORMANCE: Karbolyn enters the bloodstream like a simple sugar, yet it still provides sustained energy without the crash. It's absorbed faster than dextrose, simple sugar, bread, rice, and other carbohydrate products. Enjoy pre, intra, or post training to maximize and maintain high-intensity training, power output, and increase muscle fullness & pumps.
- ALL CARBS AREN'T CREATED EQUAL: Unlike simple carbs that tend to cause a spike and crash or complex carbs that are slow to digest, leaving you feeling bloated and lethargic, Karbolyn combines the best of both by providing you with fast absorption and sustained energy without the bloating or crash. Plus, Karbolyn is 100% sugar-free, gluten-free, stimulant-free, and vegan-friendly.
- MANUFACTURED IN-HOUSE: EFX Sports is part of a very small, elite group of brands who actually make their own products. That’s why we guarantee Karbolyn always meets label claims and is 100% banned-substance free (certified by Informed Sport). With Karbolyn, you'll know you have a pure and potent carbohydrate product.
- 3X QUALITY TESTING: At EFX Sports, we proudly own every phase of the manufacturing process to ensure what's on the label is what's in the bottle...without question. In fact, every EFX Sports product must pass 3 critical quality checkpoints—before, during and after production.

## Product Details

- **Brand:** EFX Sports
- **Flavor:** Neutral
- **Primary Supplement Type:** Karbolyn
- **Unit Count:** 68.8 Ounce
- **Item Form:** Powder
- **Item Weight:** 4.6 Pounds
- **Item dimensions L x W x H:** 6 x 6 x 10 inches
- **Product Benefits:** Endurance
- **Age Range (Description):** Adult
- **Number of Items:** 1

## Images

![EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 39 Servings (Neutral) - Image 1](https://m.media-amazon.com/images/I/713yqRtgmIL.jpg)

## Questions & Answers

**Q: Has anyone tried this before a long run? How did it work?**
A: Yes,  I have tried this before a spartan beast approx 12 miles in the middle of July taking about 4 hrs to complete. It worked well.  I would suggest depending on the miles you are running, a gel pack during your run   I utilize this product before, during, and post workouts  I would strongly recommend this product for anyone who needs a quick absorbing carb.

**Q: Is this product vegan?**
A: Yes! I called the company and they said it has properties of potato, rice, and corn. No animal derivatives.

**Q: Is you product 3rd party tested for purity?**
A: Yes, All EFX Sports products are tested under the 3rd party Informed Sport. You can view all tests on their web site by the lot number on your product. On top of that we manufacture 100% of our own products and have a full service inhouse analytical lab. Please see our website for the video titled 'Dock to Dock" for a more in depth view of what we do.

**Q: How many years till it expires**
A: No way to tell for sure but most of their dates are not until 2021

## Customer Reviews

### ⭐⭐⭐⭐⭐ Game-Changing Energy for High-Intensity Training
*by B***A on August 9, 2025*

I’ve been using EFX Sports Karbolyn Fuel for several weeks now, and I’m consistently impressed—this carbohydrate supplement truly delivers on its promises. What I Love: • Lightning-Fast Fuel with Staying Power Karbolyn absorbs quickly—like a simple sugar—but provides steady, sustained energy without the dreaded crash. It outperforms dextrose, rice, and other carb sources easily. • Clean & Athlete-Approved Formula The product is sugar-free, gluten-free, stimulant-free, and vegan-friendly. Plus, it’s made in-house and certified by Informed-Sport, so I know it’s safe and free of banned substances. • Versatile & Effective I use it before, during, or after my workouts for energy, endurance, and recovery. It also helps with muscle pumps and fullness—exactly what I need for lifting sessions. • Easy to Mix & Tasty No clumping or gritty textures. It blends easily and the flavored options (like Blue Razz Watermelon or Fruit Punch) are refreshing—not overly sweet. ￼ A Couple of Minor Drawbacks: • Pricey for a Carb Supplement At around $50 for the 4.4 lb tub (roughly $0.73 per ounce), it’s a premium option, but for the performance gains, it’s worth it. • Flavor Choices Might Be Hit or Miss While the variety is nice, some flavors may not suit everyone’s taste. I’d love to see a few more natural or lighter options. ⸻ Overall Impression: EFX Sports Karbolyn Fuel has become an essential part of my training regimen. For anyone looking for rapid-absorption carbs that support serious workouts—without crashes, bloating, or shady ingredients—this is a top-tier option. If it were any cleaner or more effective, I’d sign up immediately. Highly recommend for serious athletes and fitness enthusiasts aiming to push their limits.

### ⭐⭐⭐⭐⭐ Fantastic Energy Source for Long Runs!
*by T***E on March 4, 2025*

The EFX Sports Karbolyn Fuel (Blue Raspberry) has been a game-changer for my long-distance runs! It provides a steady, reliable source of energy without the crashes I’ve experienced with other carb-based supplements. I feel sustained endurance throughout my runs, and it helps keep my energy levels up without any stomach discomfort. The Blue Raspberry flavor is refreshing and easy to drink, not overly sweet or artificial-tasting. It mixes well with water and doesn’t leave any chalky residue. I’ve noticed a big difference in my performance and recovery since using Karbolyn, and it’s now a staple in my training routine. If you need a fast-absorbing, long-lasting energy source for endurance activities, EFX Sports Karbolyn Fuel is an excellent choice. Highly recommend!

### ⭐⭐⭐⭐⭐ Good stuff
*by D***K on August 18, 2025*

Fantastic high performance carb powder for a good price. Mixes/dissolves great, no flavor. Will continue to buy.

## Frequently Bought Together

- EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 39 Servings (Neutral)
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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-28*