









⚡ Fuel your grind with science-backed, crash-free energy!
EFX Sports Karbolyn Fuel is a clinically studied carbohydrate powder sourced from potato, rice, and corn designed for elite athletes. It absorbs 3x faster than dextrose, providing rapid yet sustained energy without sugar, gluten, or stimulants. Manufactured in-house with triple quality testing and certified banned-substance free, Karbolyn supports peak performance, muscle fullness, and faster recovery across pre, intra, and post-training phases.
| ASIN | B07MTNXLY8 |
| ASIN | B07MTNXLY8 |
| Additives | Gluten Free |
| Age Range Description | Adult |
| Best Sellers Rank | #19,809 in Health ( See Top 100 in Health ) #141 in Endurance & Energy Consumables |
| Brand | EFX Sports |
| Customer Reviews | 4.6 4.6 out of 5 stars (847) |
| Customer reviews | 4.6 4.6 out of 5 stars (847) |
| Date First Available | 13 September 2019 |
| Format | Powder |
| Is Discontinued By Manufacturer | No |
| Manufacturer | EFX Sports |
| Manufacturer reference | AAP113KB-2 |
| Package Dimensions | 25.5 x 15.29 x 14.81 cm; 2.16 kg |
| Serving Recommendation | One Scoop |
S**D
ممتاز
K**K
味がついてないから何にでも混ぜやすい
M**R
No llega a mexico, la regresaron en la aduana
サ**人
味はイマイチ
T**E
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!
D**.
Need to add the calories and carb up for those gains? This is the trick. Highly recommended.
Trustpilot
2 weeks ago
5 days ago