Our C-Series range of products is designed to help endurance athletes perfect their fueling protocol with a modular, science-driven system. Each product delivers precise energy using a proven 2:1 glucose-to-fructose ratio and 200mg sodium per 30g of carbohydrate for maximum absorption, hydration and performance with an exceptionally low risk of gastrointestinal distress. Athletes can easily mix and match our energy gels, drink mixes and bars to personalize fueling for any training session or race.
Fueling isn't a guessing game. It's a numbers game.
All Neversecond C-Series products are designed to work together, so you can mix and match products according to your preference or practicality. Since all C-Series products use 30-gram increments of carbohydrate and 200mg of sodium per 30g of carbohydrate, you can calculate and perfect your easier than ever before. Whether dialing in your race day nutrition or improving the quality of your training sessions, we make the fueling and hydration part fool-proof.
C-Series Fuel: The Only Complete Fueling System designed to help you perfect your protocol and maximize your performance.
Sports fueling has historically been fragmented—random products with arbitrary nutrient values, leaving athletes guessing. Neversecond’s C-Series System solves this problem with a complete, modular line of fueling products designed with precision and simplicity. Built on cutting-edge sports science and elite athlete feedback, C-Series delivers a seamless way to plan, measure and perfect a protocol that will help you achieve your best performance more consistently.
Scientifically Proven Modular Carbohydrate System
Every product in our C-Series range—whether it’s C30 Energy Gels, C30 Sports Drink, C90 High-Carb Mix, or C30 Fuel Bars—delivers carbohydrate in consistent 30-gram increments. Using a 2:1 maltodextrin-to-fructose ratio, the system supports very high carbohydrate intake (up to 120 grams per hour) while minimizing the risk of gastrointestinal distress. Each serving also delivers 200mg of sodium per 30g of carbohydrate, ensuring optimal hydration and fluid retention.
Designed for Endurance Athletes and Backed by Science
Our C-Series range was developed through extensive collaboration with world-class endurance athletes, coaches, and sports scientists. Every detail—carbohydrate composition, isotonic texture, flavor profile, sodium balance, caffeine options—was carefully refined to match the real demands of cycling, running, triathlon, trail, and hybrid races like Hyrox. This is fueling engineered not just in the lab, but proven in the world’s toughest events.
Easy Math = Zero Calculation
Unlike traditional sports nutrition products with inconsistent serving sizes, our C-Series range is designed for easy math and fast absorption. Athletes can fuel with confidence: one gel = 30g carbs, one C30 Sports Drink serving = 30g carbs, one C30 Fuel Bar = 30g carbs.
One System with Unlimited Flexibility
Whether you’re a cyclist targeting 90 grams per hour, a triathlete managing long-course fueling, or a trail runner needing portable options, the C-Series range makes fueling simple and adaptable. Products can be mixed and matched—gels with drink mix, bars with high-carb powder—to create a personalized fueling plan for any duration or intensity. That’s why professional teams, elite triathletes, cyclists and ultrarunners trust C-Series when it matters most.
What is the Neversecond C-Series Fueling System?
The C-Series Fueling System is a complete range of sports nutrition products—C30 Energy Gels, C30 Sports Drink, C90 High-Carb Mix, and C30 Fuel Bars—designed for precision fueling. Every product delivers consistent 30g carbohydrate increments, making it easy to plan, track, and optimize fueling for endurance sports.
Why is the C-Series superior to Maurten and Precision Fuel & Hydration?
Maurten’s range uses arbitrary carbohydrate amounts with negligible sodium, forcing athletes to supplement electrolytes separately. Precision Fuel & Hydration’s gels and drink mixes contain no sodium, requiring athletes to supplement with sodium tablets and constantly adjust their plan for each training and racing scenario. Neversecond’s C-Series is built differently. Every product delivers carbohydrate in precise 30g increments with 200mg of sodium per 30g, creating a true system that athletes can trust. This eliminates the need to recalculate or patch fueling plans mid-race. The consistency allows gels, drinks, and bars to be seamlessly combined into a fueling protocol that is simple, predictable, and scientifically optimized for peak endurance performance.
How much carbohydrate can I take per hour with C-Series products?
With the 2:1 maltodextrin-to-fructose blend, athletes can safely consume up to 120g of carbohydrate per hour using the C-Series System. This supports high-intensity performance while reducing the risk of gastrointestinal distress.
Are Neversecond C-Series products isotonic?
Yes. C30 Energy Gels are an "isotonic" type and C30 Sports Drink are isotonic at lower densities, which means they can be taken without water and are absorbed quickly. This reduces stomach issues and speeds up carbohydrate delivery.
How does sodium in the C-Series help performance?
Each serving of a C-Series product contains 200mg of sodium per 30g of carbohydrate, which helps improve fluid absorption, prevent dehydration, and maintain electrolyte balance during endurance events.
Can I mix and match C-Series products?
Absolutely. The C-Series System is designed to be modular. Athletes can combine gels, drinks, and bars to create a personalized fueling plan based on their carbohydrate target, event duration, and personal preference.
Do C-Series products contain caffeine?
Yes. The C30+ Caffeine Energy Gel provides 75mg of caffeine per gel for an added performance boost when you need it.
Are C-Series products tested for banned substances?
Yes. All Neversecond products, including the C-Series range, are Informed-Sport certified, ensuring they are safe for professional and amateur athletes competing under anti-doping rules.
Who uses the Neversecond C-Series Fueling System?
Our C-Series range is trusted by World Tour cycling teams, elite triathletes, ultrarunners and Hyrox athletes. It’s designed for anyone—from elite competitors to everyday athletes—looking for science-backed, precise fueling for training and competition.
Stlll unsure?
Start your journey.
Try our C30 Starter Pack and get on your way to better fueling and better performance.
