EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 36 Servings (Fruit Punch)

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 PowerKarbolyn 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 FormulaThe 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 & EffectiveI 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 & TastyNo 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 SupplementAt 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 MissWhile 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.

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!

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

I love this product. I have so much energy when I load with this before my workouts. I use it in several different aspects. I use this for long weightlifting workouts and before I take an Army Physical Fitness Test. It provides me with just enough more energy in the tank to destroy my 2-mile run and pass all the younger soldiers by on the last 1/2 mile. I also love it for my PM workouts along with a non-stimulant pre-workout after a long day at work. This product helps me pull the tail end of my workout off with a bang instead of barely getting through it and by not having to have a caffeine pumped pre-workout I can still get to bed and sleep well.Upon opening this bottle, the first thing I noticed is the texture, it reminded me of a finely ground instant mash potatoes so I was slightly worried about how it would mix. Turns out it mixes really well with cold water and a shaker cup and isn't chalky of gummy at all. I do notice it works best to mix and drink vs pre-mixing the night before and leaving it in the fridge for a morning workout. I got the Lemon Ice flavor and its very good and refreshing.I highly recommend adding this to your routine and your "must have on hand" supplement cabinet it is the real deal.

Great taste and easy to digest. I typically drink it pre-workout and intra-workout with long sessions.It keeps my blood sugar stable throughout long sessions and after I leave the gym.

I got the blue razz watermelon Karbolyn and it definitely delivers on performance. It gives me a solid boost of energy during my workouts and helps me push through longer training sessions without feeling drained.The flavor is strong and honestly a little too sweet for my taste, especially if I’m drinking it early in the morning or during a long workout. I usually dilute it with extra water and that helps a lot.Overall, it works great and I’ll keep using it for the energy and endurance benefits, just wish the flavor was a bit lighter.