FREE UK SHIPPING ON ORDERS £50+

£25 OFF SELECTED TREADMILLS. Use code TREADMILL25

OCTOBER OFFER: £50 OFF CARGO BIKES. use code: CARGO50

Best Sellers
Bundles
Brands
Offers
North Pulse

Train
Fuel
Recover

Best Sellers
Bundles
Brands
Offers
North Pulse

Train
Fuel
Recover

Search for anything

Home / Shop / Energy Gels / 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

Free UK delivery over £50
Secure Checkout
30-day returns
Need help choosing? Contact our team

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.

Product Specifications

Product: SiS BETA Fuel + Nootropics Energy Gel
Product Type: Dual-source energy gel with added nootropics
Format: Single-serve gel sachet
Serving Size: 1 gel
Calories Per Gel: 158 kcal
Carbohydrate Per Gel: 40g
Sugars Per Gel: 19g
Fat: 0g
Protein: 0g
Salt: 0.03g
Carbohydrate Ratio: 1:0.8 maltodextrin-to-fructose ratio
Caffeine Per Gel: 200mg
Cognizin® Citicoline Per Gel: 250mg
L-Taurine Per Gel: 1g / 1000mg
L-Theanine Per Gel: 200mg
Formula: Dual-source carbohydrate with added nootropics
Water Required: No additional water required
Primary Use: High-carb fuelling with cognitive support during endurance exercise
Best For: Running, cycling, triathlon, marathons, sportives, ultra-distance events and long training sessions
Recommended Session Length: Designed for endurance exercise lasting over 2 hours
Carbohydrate Target Guidance: Can be combined with other BETA Fuel products to support 80–120g carbohydrate intake per hour
Suggested Use: Consume directly from the sachet during endurance activity
Maximum Use: Maximum of one serving per day
Available Sizes: Single Serve, Pack of 6 and Box of 30
Available Flavours: Apple, Lemon & Lime and Mixed
Dietary / Certification Notes: Vegan, gluten free and Informed Sport certified
Key Features: 40g carbs per gel, 200mg caffeine, nootropic blend, 1:0.8 carb ratio, no water needed and endurance-focused race-day fuelling

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.