SiS GO Isotonic Energy + Caffeine Gels (60ml x 30 Pack)
Dual-Action Endurance Fuel | 22g Fast Carbs | 75mg Alertness Boosting Caffeine
Science in Sport (SiS) GO Energy + Caffeine Gels build on the groundbreaking science of the world’s first truly isotonic energy gel. Engineered specifically for high-intensity races, grueling endurance events, and long days on the road, each gel delivers 22g of rapid-release carbohydrates combined with a performance-tested 75mg dose of caffeine. This synergistic matrix floods your working muscles with immediate glycogen while centrally targeting the brain to reduce your perception of effort, sharpening your mental focus and delaying physical fatigue when you need it most.

Key Performance & Wellness Benefits
- Isotonic Carbohydrate Matrix: Delivers 22g of fast-acting carbohydrates from maltodextrin. The isotonic formulation matches the fluid balance of your body, allowing it to empty from the stomach rapidly without requiring additional water.
- Ergogenic Caffeine Kick: Packed with 75mg of pure caffeine (Cola/Citrus profile standard) to dramatically improve mental alertness, enhance focus, and lower the psychological barrier of physical exhaustion during long-distance training.
- Zero Gastrointestinal Distress: A clean, light-tasting gel consistency that is exceptionally gentle on the stomach, completely eliminating the bloating, cramping, or heavy digestive strains common to thicker, un-isotonic concentrates.
- Compact, Mess-Free Architecture: Features a sleek, pocket-friendly design with an easy-tear tab. Perfect for cycling jerseys, running vests, and triathlete gear setups for effortless, single-handed fueling at high speeds.
- Informed-Sport Registered: Meticulously monitored and verified under a world-class anti-doping testing framework, ensuring complete safety and assurance for competitive and professional athletes.
- Clean & Inclusive Formula: Naturally structured to be 100% Vegan, Vegetarian, Lactose-Free, Gluten-Free, Wheat-Free, Nut-Free, and Soya-Free.

What Is In SiS GO Isotonic Energy + Caffeine Gels?
Serving Size: 1 Gel (60ml) | Servings Per Box: 30
Note: Analytical macro values remain highly uniform across available flavor profiles.
| Typical Values | Per 60ml Gel Serving | Per 100ml |
| Energy | 356 kJ / 85 kcal | 594 kJ / 142 kcal |
| Carbohydrate | 21 g (22g for Citrus/Berry variations) | 35 g |
| — of which Sugars | 0.7 g | 1.2 g |
| Caffeine | 75 mg | 125 mg |
| Salt | 0.04 g | 0.1 g |
| Fat | 0 g | 0 g |
| — of which Saturates | 0 g | 0 g |
| Protein | 0 g | 0 g |
Usage & Strategy Directions
- Pre-Workout Stimulation: Consume 1 gel roughly 30 minutes before starting short, intense physical exercise to prime your central nervous system with mental focus and fast-acting carbohydrates.
- Intra-Workout Performance Strategy: During prolonged endurance events lasting over 90 minutes, take 1 to 2 gels per hour.
- Application Protocol: Simply tear off the top tab of the packaging and squeeze the gel directly into your mouth. Because it features a precisely balanced isotonic formula, there is no need to consume water alongside it to facilitate absorption.

Flavours & Ingredients
- Available Flavor Selection: Berry, Cola, Double Espresso
- Ingredients (Cola Flavour): Water, Maltodextrin (from Maize) (33%), Natural Flavouring, Gelling Agents (Gellan Gum, Xanthan Gum), Acidity Regulators (Citric Acid, Sodium Citrate), Caffeine (75mg), Preservatives (Sodium Benzoate, Potassium Sorbate), Sweetener (Acesulfame K, Sucralose), Sodium Chloride, Antioxidant (Ascorbic Acid).
Important Safety Note: High caffeine content. Not recommended for children, individuals sensitive to caffeine, or pregnant and nursing women. Food supplements must not be used to replace a rich, varied diet and a healthy, active lifestyle.
- Stock: In Stock
- Brand: Science in Sport