It's actually very interesting because guarana is a plant, and, as you can guess, the plant can grow in different ways. It can be big, it can be small, it can contain a lot of caffeine or less caffeine, whether you actually take the seeds or the roots or any part of the plant. In fact, guarana, the guarana seed, usually contains more caffeine than coffee beans. It's actually been known for centuries in South America to be an energizing substance. They say it's guarana extract, so it's natural, and so there is no problem. We put it in a drink, but, in fact, we haven't run any tests.
On April 30th, 2018. See this statement in context.