So I started with the red bottle first. This supplement helps with endurance, mental focus, energy, for working out in the weight loss process. After 1 month, I found out they came out with Black Onyx, the black bottle. Its the sake as the red bottle but stronger for energy and focus. Its also doesn’t make your heart rate go ridiculously fast and shaky or jittery like other caffeine stimulants. Its the best product available but you do need to exercise and kept active to get the full benefits of it. I recommend you to start with the red bottle and move up to the black after a month only if you can handle and need the extra boost of energy. Both bottle contain 7 different never before combined ingredients to make the maximum sensory formula that has changed my life.