--- product_id: 586368013 title: "Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 37 Servings (Grape)" brand: "efx sports" price: "¥29394" currency: JPY in_stock: true category: "Efx Sports" url: https://www.desertcart.jp/products/586368013-karbolyn-fuel-fast-absorbing-carbohydrate-powder-carb-load-sustained-energy store_origin: JP region: Japan --- # 3x faster absorption than dextrose 37 grape-flavored servings 100% stimulant & gluten-free, vegan-friendly Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 37 Servings (Grape) **Brand:** efx sports **Price:** ¥29394 **Availability:** ✅ In Stock ## Summary > 🍇 Fuel your grind with science-backed, crash-free energy! ## Quick Answers - **What is this?** Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 37 Servings (Grape) by efx sports - **How much does it cost?** ¥29394 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/586368013-karbolyn-fuel-fast-absorbing-carbohydrate-powder-carb-load-sustained-energy) ## 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 - • **Versatile Use:** Perfect pre, intra, or post-workout to maximize performance and recovery. - • **Rapid Carb Loading:** Clinically studied Karbolyn fuels muscles in minutes, not hours. - • **Clean & Pure Formula:** Sugar-free, gluten-free, stimulant-free, and vegan for guilt-free gains. - • **Elite Manufacturing Control:** In-house production with triple quality testing ensures purity and potency. - • **Sustained Energy Without the Crash:** Absorbs like simple sugar but delivers long-lasting power. ## Overview EFX Sports Karbolyn Fuel is a fast-absorbing, clinically studied carbohydrate powder sourced from potato, rice, and corn. Designed for elite athletes, it delivers rapid muscle carb loading and sustained energy without sugar crashes. With 37 grape-flavored servings per bottle, it’s stimulant-free, gluten-free, vegan, and manufactured under strict quality controls to guarantee purity and performance support pre, during, and post training. ## Description Karbolyn is a clinically studied (with peer-reviewed, published research) sugar-free carbohydrate supplement powder sourced from potato, rice, and corn. It’s designed for elite athletes looking for a fast, safe, and high-performance way to quickly and easily load muscles with lasting energy and for faster recovery. “Carb load” with Karbolyn in minutes, not hours before your event or training session! Absolutely nothing fuels your monster workouts like Karbolyn! It enters the bloodstream like a simple sugar, yet it still provides sustained energy without "crashing". Karbolyn is absorbed faster than dextrose, simple sugar, bread, pasta, rice, and other carbohydrate products sold in the marketplace - simple or complex. Pros worldwide use it for a reason! Use Karbolyn Pre/Intra/Post training to maximize and maintain high-intensity training levels, power output, for greater muscle hardness and fullness… and pumps like you’ve never experienced before! ## 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 | B081ZHSX5L | | ASIN | B081ZHSX5L | | Age Range Description | Adult | | Brand Name | EFX Sports | | Color | ice | | Container Type | Bottle | | Customer Reviews | 4.5 4.5 out of 5 stars (59) | | Customer reviews | 4.5 4.5 out of 5 stars (59) | | Dosage Form | Powder | | Flavor | Grape | | Item Form | Powder | | Manufacturer | All American Pharmaceutical | | Manufacturer | All American Pharmaceutical | | Manufacturer Part Number | AAP113F-2 | | Manufacturer reference | AAP113F-2 | | Material Features | Gluten Free, Sugar Free, Vegan | | Number of Items | 1 | | Package Dimensions | 25.4 x 15.01 x 14.91 cm; 2.16 kg | | Primary Supplement Type | Creatine | | Special Ingredients | Gluten Free | | Total Servings Per Container | 37 | | UPC | 737190004432 | ## Product Details - **Age range (description):** Adult - **Brand:** EFX Sports - **Dosage form:** Powder - **Flavour:** Grape - **Item form:** Powder - **Number of Items:** 1 - **Package information:** Bottle - **Primary supplement type:** Creatine - **Servings per container:** 37 - **Special ingredients:** Gluten Free ## Images ![Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 37 Servings (Grape) - Image 1](https://m.media-amazon.com/images/I/61FbbejBjPL.jpg) ## Frequently Bought Together - EFX Sports Karbolyn Fuel | Fast-Absorbing Carbohydrate Powder | Carb Load, Sustained Energy, Quick Recovery | Stimulant Free | 37 Servings (Grape) - Nutricost Creatine Monohydrate Micronized Powder 500G, 5000mg Per Serv (5g) - 100 Servings, 17.9 Oz - Nutricost L-Glutamine Powder - Gluten Free & Non-GMO (500 g, Unflavored) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/586368013-karbolyn-fuel-fast-absorbing-carbohydrate-powder-carb-load-sustained-energy](https://www.desertcart.jp/products/586368013-karbolyn-fuel-fast-absorbing-carbohydrate-powder-carb-load-sustained-energy) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-13*