Ideal for riders, runners and triathletes who want an easy-on-the-stomach gel with added caffeine for race efforts, hard training, or the closing stages of long endurance sessions.
The Science in Sport Go Isotonic Energy + Caffeine Gel is built for riders and endurance athletes who want quick energy plus a noticeable caffeine boost in one sachet. What makes it stand out is the isotonic format, which is designed to be taken without extra water. That’s a real advantage when you’re on the limit, your bottles are running low, or you simply want fuelling to be as straightforward as possible.
In use, this style of gel is well suited to high-intensity efforts, races, hard bunch rides, long climbs, and the later stages of endurance sessions when focus can fade. The texture is generally regarded as easy to get down, with a milder flavour profile than many thicker, sweeter gels, so it’s a practical option if you struggle with heavy, sticky gels or flavour fatigue.
Because each gel carries 75 mg of caffeine, we’d treat it as a strategic fuelling tool rather than an all-day, every-20-minutes gel. It works best when you want a mental lift, sharper alertness, and a late-session boost, whether that’s before the start of a short, intense event or in the final part of a longer ride. If you already know caffeine sits well with you, this is a very convenient way to keep your fuelling simple when the pace is on.
Isotonic format
The 60 ml gel is designed to go down easily and can be taken without extra water, which keeps fuelling simpler when intensity is high.
Useful caffeine hit
With 75 mg of caffeine per gel, it’s a strong option for the part of a ride or race where you want more alertness, focus, and drive.
22 g of carbohydrate per sachet
A practical amount of quick energy for topping up during training, racing, or before a hard effort.
Easy to use on the move
Tear the top and squeeze it straight in, with no mixing, measuring, or flask prep needed.
Milder taste profile
Compared with many thick or overly sweet gels, this style is easier to keep taking when your stomach or palate is getting fussy late in a session.
Best used strategically
This is a smart choice for pre-race, key intervals, decisive climbs, or the final hour of a long event rather than constant use all day.
Informed Sport certified
Batch-tested sports nutrition gives extra confidence for competitive riders and athletes who care about supplement screening.
General
Nutritional information
Ingredients
Features
Certifications
Isotonic gel format
We give you quick, convenient energy in a format designed to be taken without extra water, so fuelling is simpler when the pace is on.
Caffeine
We add caffeine to help sharpen focus, lift alertness and reduce perceived effort when fatigue starts to build.
Informed Sport
We give you extra confidence with batch-tested sports nutrition that is screened for banned substances.
Great for
Maybe not for
Sold as a 60 ml single-serve gel in a 6-pack. There’s no bike compatibility issue here, but the key fit point is caffeine tolerance: each sachet contains 75 mg of caffeine, so it’s best planned into your overall intake from coffee, drink mix, cola, pre-workout, or other gels. A practical starting point is to trial it in training before race day, especially in Australian summer conditions or long events where you may already be using multiple fuelling products.
vs Maurten Gel 100 Caf 100
Maurten is the more concentrated option, with 25 g of carbohydrate and 100 mg of caffeine per gel, built around hydrogel technology. It suits athletes chasing a firmer texture and a bigger caffeine hit per serving.
vs Precision Fuel & Hydration PF 30 Caffeine Gel
Precision’s PF 30 Caffeine Gel gives 30 g of carbohydrate and 100 mg of caffeine per gel, so it targets athletes who want a bigger fuelling dose in each serve.
vs PowerBar PowerGel Original Espresso
PowerBar’s caffeinated PowerGel uses a 2:1 glucose-to-fructose carbohydrate blend and adds 53 mg of caffeine in the Espresso version. It’s a classic concentrated gel format.
Use it for key moments, not automatically every feed
Because 75 mg of caffeine is a solid hit, most riders will get the best result by saving this gel for a planned moment: 30 minutes before a hard start, before a decisive climb, or late in a long event when concentration starts to drift.
Count all your caffeine, not just your gels
If you’ve already had coffee, cola, pre-workout, caffeinated drink mix or other caffeine gels, total intake can climb quickly. Plan your day’s fuelling so this gel adds to your strategy rather than accidentally overdoing it.
A good option if thick gels don’t work for you
Some riders simply get on better with a more fluid gel. If concentrated gels feel too sticky, too sweet, or hard to swallow at race pace, the isotonic format here is one of the main reasons to choose it.
Trial it in training first
Even if you tolerate standard gels well, caffeine response varies a lot from rider to rider. We’d always suggest testing timing and tolerance in training before using it in an A-event.
Fuelled by science.
Science in Sport is a British performance nutrition company founded in 1992. The brand develops sports nutrition products across energy, hydration, and recovery, with a strong focus on endurance sport and practical race-day fuelling.
Science in Sport is widely used across elite and amateur sport, with partnerships spanning cycling, football, athletics and triathlon. The company highlights its research-led approach and batch testing, and its products carry Informed Sport certification for banned-substance screening.
