Our Brain Boost Plus contains Green tea extract, blueberry extract, ginkgo biloba extract. It can improve blood circulation, lower cholesterol levels, increase energy levels and endurance, improve memory and cognitive function, and boost metabolism. The way to use it is very simple: shake it well before serving, 1-2 drops at a time. It gives your brain the nutrients it needs to think and process quickly, making it easier for you to engage in conversation, learn, and remember new things.