---
product_id: 142574868
title: "EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy)"
brand: "efx sports"
price: "€ 113.12"
currency: EUR
in_stock: true
reviews_count: 13
category: "Efx Sports"
url: https://www.desertcart.hr/products/142574868-efx-sports-karbolyn-fuel-fast-absorbing-carbohydrate-powder-carb-load
store_origin: HR
region: Croatia
---

# Sustained energy, no crash Fast absorption beats dextrose Triple quality-tested, pure formula EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy)

**Brand:** efx sports
**Price:** € 113.12
**Availability:** ✅ In Stock

## Summary

> ⚡ Fuel your grind with clean, crash-free energy that keeps you winning.

## Quick Answers

- **What is this?** EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy) by efx sports
- **How much does it cost?** € 113.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/142574868-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

- • **Clean & Certified:** 100% sugar-free, gluten-free, stimulant-free, vegan, and Informed-Sport certified for elite athlete trust.
- • **Crash-Free Endurance:** Delivers steady, sustained energy to keep you performing at peak without the dreaded sugar crash.
- • **Lightning-Fast Carb Fuel:** Clinically studied Karbolyn powers muscles faster than simple sugars for instant energy.
- • **Versatile Performance Boost:** Perfect pre, intra, or post-workout to maximize power output, muscle pumps, and recovery.
- • **Elite In-House Quality Control:** Manufactured and triple-tested by EFX Sports to guarantee purity, potency, and banned-substance free.

## Overview

EFX Sports Karbolyn Fuel is a fast-absorbing, clinically studied carbohydrate powder designed for elite athletes seeking rapid muscle carb loading, sustained energy, and quick recovery. It’s stimulant-free, sugar-free, vegan-friendly, and rigorously triple-tested in-house to ensure purity and banned-substance free certification. Ideal for pre, intra, or post-workout use, Karbolyn outperforms traditional carbs by delivering steady energy without bloating or crashes, making it a premium choice for serious fitness enthusiasts.

## Description

Buy EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy) 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B07NQMLYMQ |
| Best Sellers Rank | #7,743 in Health & Household ( See Top 100 in Health & Household ) #5 in Sports Nutrition Post Workout & Recovery Products |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,113) |
| Date First Available  | February 14, 2019 |
| Manufacturer  | All American Pharmaceutical |
| Package Dimensions  | 10.08 x 6.02 x 5.87 inches; 4.78 Pounds |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** EFX Sports
- **Flavor:** Rainbow Candy
- **Item Form:** Powder
- **Item Weight:** 2.17 Kilograms
- **Number of Items:** 1
- **Package Information:** Bottle
- **Primary Supplement Type:** Carbohydrates
- **Product Benefits:** Energy Management
- **Unit Count:** 68.8 Ounce

## Images

![EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy) - Image 1](https://m.media-amazon.com/images/I/61oBn5q2fAL.jpg)
![EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy) - Image 2](https://m.media-amazon.com/images/I/71-hAwC8MLL.jpg)
![EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy) - Image 3](https://m.media-amazon.com/images/I/712Ijdln0JL.jpg)
![EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy) - Image 4](https://m.media-amazon.com/images/I/71BppaPvrCL.jpg)
![EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 35 Servings (Rainbow Candy) - Image 5](https://m.media-amazon.com/images/I/71x5BAgeomL.jpg)

## 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.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-01-22*