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Home / Shop / Hydrate & Fuel / SiS BETA + Nootropics Energy Gel

A single squeeze pouch of SIS Beta Fuel dual source energy gel in Apple flavor, shown vertically against a light gray background.

Display of Science in Sport Beta Fuel packets on a white background

SiS

SiS BETA + Nootropics Energy Gel

~~£2.50~~ £1.99 / Sale

40g of dual-source carbohydrate with 200mg caffeine and added nootropic ingredients for demanding endurance events.

Quantity Size: Single Serve

Single Serve Box of 6 Gels Box of 30 Gels

Flavour: Apple

Apple Lemon & Lime

Product variants

In stock

Quantity

In stock. Delivery 3-5 Days. Free UK delivery over £50

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30-day returnsView policy

Key Benefits

40g Carbohydrate Per Gel — Concentrated endurance fuelling.
1:0.8 Carb Ratio — Maltodextrin and fructose sources.
200mg Caffeine — A high-caffeine serving for targeted use.
Nootropic Blend — Includes taurine, citicoline and L-theanine.
Single-Serve Gel — Portable 60ml sachet for endurance racing.

SiS BETA Fuel + Nootropics Energy Gel combines a 40g dual-source carbohydrate serving with a targeted blend of added ingredients. It is designed for experienced endurance athletes using a structured fuelling and caffeine plan during long or demanding events.

The 1:0.8 maltodextrin-to-fructose formula is paired with 200mg caffeine, 1g L-taurine, 250mg Cognizin® citicoline and 200mg L-theanine per gel. Available in Apple and Lemon & Lime, it provides a compact option for planned use when both carbohydrate availability and alertness are priorities.

Nutrition & Ingredients

High caffeine content: 200mg per gel. Not recommended for children or pregnant or breastfeeding women.

Apple – 60ml gel

Per gel: 677kJ / 159kcal; carbohydrate 40g (sugars 19g); fat 0g; protein 0g; salt 0.04g; taurine 1,000mg; citicoline 250mg; L-theanine 200mg; caffeine 200mg.

Ingredients: Water, Maltodextrin (30%), Fructose (24%), L-Taurine, Flavourings, Cognizin® Citicoline, Caffeine Anhydrous, L-Theanine, Acidity Regulators (Citric Acid, Sodium Citrate), Gelling Agents (Gellan Gum, Xanthan Gum), Preservatives (Sodium Benzoate, Potassium Sorbate), Sodium Chloride.

Lemon & Lime – 60ml gel

Per gel: 677kJ / 159kcal; carbohydrate 40g (sugars 19g); fat 0g; protein 0g; salt 0.04g; taurine 1,000mg; citicoline 250mg; L-theanine 200mg; caffeine 200mg.

Nutritional information is based on the manufacturer's published formulation. Check the packaging for the latest flavour-specific ingredients, allergens and values.

Suggested Use & Compatibility

Suggested Use

Consume directly from the sachet during prolonged exercise when appropriate for your caffeine strategy. Maximum one gel per day, as specified by SiS.

Caffeine & Compatibility

Contains 200mg caffeine per gel. Do not combine casually with other caffeine products. Not recommended for children or pregnant/breastfeeding people. Check the manufacturer warning and your individual tolerance before use.

Why We Choose SiS

We choose SiS - Science in Sport because they create trusted sports nutrition products designed to help athletes fuel, hydrate and recover with confidence. From isotonic energy gels and electrolyte tablets to recovery drinks and advanced endurance fuelling, SiS supports runners, cyclists, triathletes and active individuals before, during and after training and racing.

Science-Led – Developed with a clear focus on sports science, performance nutrition and real-world athlete needs.

Easy to Use – Practical fuelling solutions such as isotonic energy gels that are simple to take during exercise, with no unnecessary complexity.

Endurance Focused – Designed to support sustained energy, hydration and recovery across running, cycling, triathlon and high-intensity training.

Trusted by Athletes – Used by everyday athletes and elite performers who need reliable nutrition when performance matters.

That’s why SiS is part of the North Sports collection — giving you proven sports nutrition to fuel harder sessions, support recovery and perform at your best.