Basically, too much of any ingredient can cause unwanted side effects, so it’s better to know the exact dosages of what you’re putting into your body – so we never recommend you to buy products that contain large proprietary blend.

USN Sport are an established supplements company that market a range of products – from protein powders, to fat burners. It was founded in 1999, so they’ve been around for a while. Creatine can increase performance, but only after your body has built up a reserve of this stuff. Which takes time. 5grams is the recommended dosage, everyday. Which is why I usually see it as pointless to have in a pre workout, because you shouldn't be smashing your favourite preworkout, everyday. Percent Daily Values are based on a 2,000 or 2,500 calorie diet. Your daily values may be higher or lower depending on your calorie needs. † Daily Value not established.Straight off the bat, nothing is really jumping out here as amazing or different. Though Bacowize and Zynamite stand out, and not something I have come across while reviewing pre workouts before. Though they may just be brand names for other ingredients or extracts. An ingredient we have come across in the past, and of course, another plant extract. This time more focused on fatigue and potentially help with anxiety. But here’s the problem: it’s part of a proprietary blend, meaning there might be a tiny amount inside B4-Bomb – which would result in this being ineffective. B4 Bomb Extreme is USN’s newest most powerful pre-workout formula. Part of the Hardcore series, it is exactly that, hardcore. Scientifically formulated with top quality ingredients, in a precise combination of synergistic quantities, B4 Bomb Extreme is certain give you the edge you need to optimize your performance and reach your targets.

Also, this pre-workout contains Bitter Orange Extract, which has been banned in the UK and other countries, after causing harmful side effects – it’s also strongly recommended not to consume with Caffeine (B4-Bomb contains both caffeine and Bitter Orange Extract). This molecule is a popular ingredient in pre-workouts on the market – but that doesn’t make it good. Blue Raspberry) flavour food supplement with amino acids, plant extracts and vitamins with sweeteners (180g) USB has done their research by adding L-Theanine in here. Basically, this nutrient works in synergy with Caffeine to form a ‘smart-caffeine’.Basically, proprietary blends are mixtures of numerous ingredients that are shown to you under one quantity. As you can see from this pre workout’s ingredient list below, all of it’s ingredients are part of the “ USN B4-Bomb Explosive Blend“.