Beta Fuel + Nootropics Energy Gel by Science in Sport (SiS)
Science in Sport (SiS) Beta Fuel + Nootropics Energy Gel
SiS Beta Fuel + Nootropics Energy Gel is a high-carbohydrate endurance gel designed for athletes who need convenient energy alongside ingredients selected to support mental alertness during demanding training and competition. Each 60ml gel provides 40g of carbohydrate from a dual-source blend of maltodextrin and fructose in a 1:0.8 ratio, making it a practical option for longer endurance sessions where carbohydrate intake becomes increasingly important. The formula is enhanced with caffeine, L-theanine, taurine and Cognizin® Citicoline, combining physical fuelling with ingredients that support focus and alertness.
- Provides 40g of carbohydrate per 60ml gel to support endurance fuelling.
- Features a 1:0.8 maltodextrin-to-fructose dual-source carbohydrate blend.
- Contains 200mg caffeine to support alertness, concentration and endurance performance.
- Includes Cognizin® Citicoline, L-theanine and taurine alongside the carbohydrate and caffeine formula.
The key ingredients in SiS Beta Fuel + Nootropics have been carefully combined to provide both carbohydrate fuel and cognitive support during exercise. Maltodextrin and fructose provide 40g of carbohydrate per gel, helping supply working muscles with an accessible source of energy during prolonged activity. Each serving also delivers 200mg of caffeine, which can assist with alertness and concentration while supporting endurance exercise performance. This is complemented by 200mg of L-theanine, an amino acid commonly paired with caffeine in focus-oriented formulas. Each gel also contains 250mg of Cognizin® Citicoline, a source of citicoline included to support cognitive performance, along with 1,000mg of L-taurine. With 159 calories per serving and a convenient, portable format, SiS Beta Fuel + Nootropics Energy Gel is suited to endurance athletes looking to combine high-carbohydrate fuelling with added ingredients for mental focus during longer or particularly demanding sessions.
Nutritional information

Directions of use
- Consume 1 gel during exercise as required to support carbohydrate intake and energy needs.
- For endurance exercise, use as part of your individual fuelling strategy and ensure adequate fluid intake.
- Contains 200mg of caffeine per 60ml serving, so consider your total daily caffeine intake when using this product.

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