It does not contain caffeine as a standalone ingredient. However, it does contain a small amount of green tea extract, which naturally contains caffeine. The amount of caffeine in AG1 can vary depending on the specific formulation and serving size, but it is generally considered to be a low amount. According to their website, a single serving of the product contains approximately 20 milligrams of caffeine, which is roughly equivalent to the amount in a quarter cup of coffee.