Heard an anecdote on a podcast that the nootropics gels have shedloads of caffeine in them but that the writing on the packet that indicates this is rather small and that someone nailed half a dozen of them resulting in no sleep and having to poo in the bushes.
that will have been Ronan McLaughlin of the Escape Collective,
theres 200mg per 60ml Gel, 3-6mg per kg bodyweight is advised for performance, so do the math,
other than that it’s L-Taurine, Cognizin(R) Citicoline and L-Theanine,
I wouldn’t use them for short XCO though I think you’d get any benefit other than the carbs.
I’d say much of the perceived benefit is coming from the high dose of caffeine if you have a low tolerance