Science in Sport Beta Fuel Gels
When your long efforts demand high-octane fuel, Science in Sport Beta Fuel gels deliver the carbs without the gut drama. Each 60 mL gel packs 40 grams of carbohydrates in an optimized 1:0.8 maltodextrin-to-fructose ratio, giving you about 74% absorption efficiency—far better than standard gels. This means fewer gels, less GI stress, and steadier energy during your marathons, ultras, or epic bike rides.
Designed specifically for endurance athletes pushing past the two-hour mark, these gels help you nail those crucial 80-120 grams/hour fueling targets. They’re vegan-friendly, Informed-Sport tested, and allergen-free, so you can trust what you're putting in your body, mile after mile.
Available in Orange, Strawberry & Lime, Neutral, plus caffeinated variants for an extra kick, Beta Fuel gels taste clean and neutral enough even when you're deep into the pain cave. Some athletes find them a touch thicker, but that’s the price of carb superiority—just rip carefully mid-race.
Bottom line? These gels provide double the carbs per pack, reducing the need to juggle multiple gels. It's your ticket to smoother digestion, sustained energy, and peak performance when it matters most.
Returns and Exchanges
We accept returns on eligible items within 15 days of delivery, provided the product is in like-new condition.
Footwear may be tried indoors only (home or treadmill). All returned items must be unworn beyond fit testing, include original manufacturer packaging and hang tags (fees may apply if damaged) and have been purchased from SkiUphill-RunUphill within the 15-day window. Apparel must be completely unworn.
Final Sale / Non-Returnable Items
All sale items are final sale. The following items are not eligible for return: carbon-plated running shoes, avalanche safety equipment (transceivers, shovels, probes, airbags), climbing equipment (ropes, harnesses, carabiners, belay devices, slings), ski crampons, helmets and gift cards.
Return Process & Fees
International returns are not accepted. A 10% deduction applies to all refunds to cover credit card processing and administrative fees.
For more information on returns and exchanges, click here.