What is Guarana? Guarana is perhaps best known for its energising properties; primarily due to its caffeine content. BULK POWDERS™ Guarana Capsules are a market leading 400mg size & contain a massive 22% naturally occurring caffeine content, directly from guarana seeds. Importantly, these seeds are crushed without any heavy manufacturing processes or synthetic materials being used, ensuring the highest quality guarana available. In addition to being an excellent energy booster and