The Science of Styrkr

Styrkr (pronounced “stir-kuh”, meaning ‘strength’ in Old Norse) was built for performance, scientifically formulated to meet the unique demands of endurance athletes.

Whether you're pushing through a long training ride, racing a marathon, or tackling your next ultra, the Styrkr range supports you every step, sip, and chew of the way.

At the core of Styrkr’s range is dual-carb technology, smart electrolyte blends, and precision dosing, all backed by real-world results and peer-reviewed research.

Dual-Carb Gels: Quick, Efficient Fuelling

Styrkr’s energy gels are more than just sugar in a sachet. These are dual-carb powerhouses combining maltodextrin and fructose in optimal 1:0.8. This ratio has been scientifically proven to improve carbohydrate oxidation rate, allowing for maximum energy release without causing undue stress on the stomach. The result? More energy delivered, less gut discomfort.

• GEL30: 30g carbs per gel with added amino acids to improve blood flow and reduce fatigue.
• GEL30 Nitro+: Same 30g carb base, but includes dietary nitrate to enhance oxygen efficiency, ideal for time trials or hard sessions.
• GEL30 Caffeine+: Boosts mental clarity and reduces perceived effort with 150mg caffeine.
• GEL50: A high-carb option with 50g carbs in one gel, giving it an industry-leading price-to-weight ratio, allowing athletes to hit PBs without hitting your pockets.

Dual-Carb Drinks: Smooth Energy, Smart Delivery

Styrkr’s MIX range mirrors the same dual-carb ratio, delivering 60–90g of carbs per serving, along with sodium for hydration. The drinks are low-acidity, light on the stomach, and available with or without caffeine.

• MIX60: Provides 60g dual-source carbohydrates for maximum energy delivery, without causing bloating.
• MIX90: Provides 90g dual-source carbs for sustained energy and strength, ideal for activities over 60 minutes long.
• MIX90 Caffeine+: Supplies 90g carbs for maximum energy, and a 150mg caffeine boost to sharpen focus.

Electrolytes: Science-Backed Hydration

Electrolytes play a critical role in muscle function, cramp prevention, and fluid retention. Styrkr’s SLT range delivers a smart sodium blend that replaces what’s lost in sweat, not just salt for the sake of it.

• SLT05 Quad-Blend: Formulated with 360mg sodium, 280mg potassium, 20mg calcium, and 11mg magnesium to optimise hydration.
• SLT07 Tablets: These ultra-convenient rehydration tablet offers a powerful electrolyte formula to counteract dehydration and improve water absorption.

Solid Fuel: Energy That Goes The Distance

Nutritionally complete bars that deliver a measured hit of carbs, protein, or both, crafted for athletes, adventurers, or anyone seeking sustained energy throughout the day.

• BAR50: Contains over 50g of fast-acting carbohydrates for quick, sustained energy in a soft, chewy bar.
• BAR+: Paced with 45g of carbs and 15g protein per bar in a 3:1 carbohydrate-to-protein ratio for optimal muscle recovery.
• STYRKRTHON: Designed to rejuvenate you with an impressive 22g of vegan, gluten-free protein.

Why It Works

The Styrkr sports fuel range is the culmination of many months of research and development with one clear focus: to help everyday athletes reach their next endurance goal.

They are committed to innovation, and aim to improve performance by introducing supplements that are specifically designed to give athletes more energy and combat fatigue, whatever their diet.

All Styrkr products are Vegan Society-approved and made with natural ingredients. You’ll not find any colourants or preservatives in their products either. Why? Because your body doesn’t need them. With Styrkr, it’s natural ingredients all the way to the finish line.

Whether you’re chasing a PB or pushing personal limits, the Styrkr system gives you the tools to fuel smarter, hydrate better, and recover faster. Explore the full range HERE.