EFX Sports, Pure Fuel, Karbolyn Fuel®, Blue Razz Watermelon, 4 lb 4.8 oz (1,950 g)
Available in stock Last updated June 13, 2026
Ingredients
Ingredients
Suggested Use
Suggested Use
Warning
Warning
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Product Details
- 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.
- Gluten-free, Sugar-free, and No artificial colors
Typically, US domestic orders are delivered within 5 to 8 business days from the day order is shipped unless the product is back ordered (Out of Stock).
Please note that we do not ship on Saturdays and Sundays. International customers please Click Here to find more about the international shipping policy.
The total delivery time for your order is the period of time from when you place your order until the time you receive it. It is comprised of two parts- the processing time and the shipping time.
A. Processing time- The time from when you submit your order to when the item leaves the warehouse. In most cases, this is 3 to 5 business days. Please keep in mind that these are estimates based on previous shipping times and may sometimes take a little longer based on stock availability and demand.
B. Standard Shipping- Standard Shipping typically takes 5 to 8 business days to arrive, within the continental 48 U.S. only, excluding Hawaii, Alaska, Virgin Islands & Puerto Rico.
C. Expedited Shipping- Currently we are not providing Expedited Shipping service(s).
D. Shipping Note- Extra shipping charges might apply for glass items, liquids, probiotics (ships along with ice packs) or heavy weight packages due to the dimensions of the shipping box. Please contact us for any concerns and inquiries.
We - MAPLE HERBS WORLDWIDE INC. are not the manufacturer of the products sold on our website - www.mapleherbs.shop, unless explicitly mentioned.
While we work to ensure that the product information and related details on this website are correct, manufacturers may alter their product labels or product information without any prior notice, which may result in the actual product packaging to look different than shown on our website.
Statements and product benefits mentioned on our website have not been evaluated by the Food and Drug Administration (FDA). For medicinal products, content on our website is not intended to be used to diagnose, treat, cure, or prevent any disease or health condition or to substitute advice given by medical practitioners, pharmacists or other licensed health care professionals. You should contact your health care provider immediately if you suspect any medical problem.
Please read the labels, warnings and instructions provided on packaging before consuming and do not rely solely on the information presented on our website.
Vitals
| Manufacturer | EFX Sports |
|---|---|
| UPC | 737190002575 |
| Package Quantity | 4.8 oz |
| Form | Powder |
| Flavor | Blue razz watermelon |
| Supplement Health Focus | Energy and metabolism |
| Dietary Preferences | Gluten-free , Sugar-free , No artificial colors |
| Certifications | Gluten-free, No artificial colors |
| Product Category | Vitamins & Supplements |
| Product Type | Energy Supplements |
| Age Group | Adults |
| Country of Origin | USA |
| Shipping Weight | 4.78 lb |