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Karbolyn Fuel- EFX Sports
Karbolyn® represents the dawn of a new era of carbohydrate supplementation. Derived from potato, rice and corn, this fast-acting, long-lasting, high-performance compound offers the best of both simple and complex carbohydrates.*
Simple carbohydrates have the ability to enter the bloodstream quickly. However, they can also stimulate a strong “spike” and subsequent “crash” due to a rapid rise and fall of insulin levels. This may be good for a quick burst of energy but not for sustained endurance.*
Complex carbohydrates do provide sustained endurance. But, they are slow to digest, and can leave you feeling bloated and lethargic.*
Karbolyn® Delivers The Best of Both Worlds
Karbolyn® is absorbed into the bloodstream like a simple sugar but without the typical crash caused when your muscles run out of fuel. It has also been shown to be absorbed as quickly as pure Dextrose (a simple carbohydrate). Yet, it still provides sustained energy without “crashing”.*
The Clinical Study sought to document whether or not Karbolyn® has a positive and sustainable impact on blood sugar levels in normal adults during aerobic activity. Data obtained from participants indicated that a simple sugar promoted a steep drop and subsequent “crash” at a predictable point in time. Karbolyn® gave an overall smoother decline in blood glucose level.*
Karbolyn® Study Data - Re: IRB No : 29443/1; KL-001 - Study: July 2014–March 2015
Ingredients either Pass or Fail...and a 'Fail' is rejected and shipped back.
When you invest in EFX Sports products, you are putting your faith in the efficacy and purity of our ingredients, and the integrity of our brand. That's why we NEVER take that trust for granted.
From dock-to-dock, we own every phase and process to ensure that what's on the label is what's in the bottle...without question.
Order by 3pm for Next Day Air Shipping, see pricing at checkout:
Our return/exchange policy is valid for only 30 days.
We offer free USPS ground shipping (5-day) orders $99+ and 2-day priority shipping for a $20 fee. In most cases, orders before 3pm PST ship the same day & all other orders are fulfilled within 24 hours. (excluding holidays & weekends)
Do you have a Subscription/reoccurring order - To manage click here
To see Return, Exchange, Cancel your order click here
Order Delay? If your purchase was made after the cutoff time (3pm PST) to ship the same day. That means your order will be shipping the next business day not including weekends or holidays.
If you would like to cancel your subscription, please see the link below. To avoid extra charges you must cancel your subscription 7 days prior to the next withdrawal. Disclosure: You can only cancel future orders and any processed payments are non refundable & the order will be fully processed.
If you attempted to place an order multiple times but did not receive an order confirmation email with a 6-digit order number, this means your order did not go through. These transactions shown on your account will clear & fall off or self-cancel within 24-48 hours. Please do not contact customer service unless it's already been 3 business days and the charges have still not reversed. If you need to resubmit your order please call our customer service line at 833-399-3799.
Next Day Air deliveries are done Monday through Saturday. Orders placed before 4 pm Monday through Friday are guaranteed to ship the same day and be delivered the following day. Orders placed on Saturday before or after 4 pm won’t ship until Monday morning and will be delivered on Tuesday.
Please note that Prime Sports Nutrition is not responsible for any delays with deliveries caused by UPS. Prime Sports Nutrition is only responsible for delivering your package within the cut off times disclosed above. Any delay with a Next Day Delivery package caused by UPS must be disputed directly with the carrier. In other words, Prime Sports Nutrition cannot issue a refund for any Next Day Air package that was dispatched to UPS within the cut off time but delayed by UPS.
We thank you for your understanding and look forward to continuing providing you with exceptional customer service.
To be eligible for a return, the product/s must be unused and sealed. The products must also be in the original packaging. Prior to returning a package you are required to get an approval from our customer fulfillment department via email (info@shopteamprime.com) Any packages sent without approval will not be refunded. A 20% restocking fee is applicable to order cancellations regardless of whether the package has shipped or not.
Do not send packages without prior approval to any Prime Sports Nutrition location as it will not be processed.
ALL muscle builder/sarms products are final sale. Regardless if item hasn't left our shipping department.
For any damaged shipments, please submit images of damaged goods & package to our customer service email: info@PrimeSportsNutrition.com
We are not responsible for lost or stolen packages. You may purchase Aftership or Shipping Protection during checkout to protect yourself from porch piracy. Alternatively, you can open a claim with the responsible carrier.
We do not provide free returns unless the incorrect product was delivered.
Upon receipt of the package, one of our team members will contact you to proceed with the exchange/return.
Click here to start your return
Customer Service Hours: Open Daily 11am-5pm PST. We typically respond to inquires within 24hrs. Please email: Info@PrimeSportsNutrition.com or call us by phone at (833) 399-3799.
We do not store credit card details nor have access to your credit card information.