Which stimulant compound is often used in the production of energy drinks?

I love caffeine! love my caffeinated drinks! but. I don't do energy drinks! but i would like to try! love my lattes! I do! whenever I have the chance to drink a caffeinated drink I will like come on y'all! should know! yo girl! like I have a lot of say about almost everything on here! so u can find my comments! probably in every level on multiple questions! so! come on! like duh!