I'm an extensive energy/nootropics drink user. I stumbled across Neubria cognifuel, read through the ingredients, came to the conclusion it could have an edge on competitors (Gfuel, redbull, monster etc). I would start by saying that the taste is not as good as those products, but the cognitive effects most definitely are. I can go from feeling groggy, slow, unaware and just generally 'switched off' to becoming hyper aware, alert, concentrated and 'in the zone' just 30 mins after drinking one dose. While the other products do also do this, cognifuel is by far the best and most effective at achieving this and absolutely worth buying if thats what you're looking for. It's perfect for the cognitive boost you're looking for while gaming, studying or working. It's a well made product with an edge on it's competitors - give it a shot.