A: yes, in the form of green tea.

A: Yes, it does. Not only does the label/brand claim that it's caffeinated, but it has green tea in it. While green tea doesn't have the amount of caffeine as a traditional cup of coffee, it still has caffeine. Hope this helps!

A: I don't think so. At least, I can't find anything on the bottle that says so.

A: idk that seems weird but i guess you could warm it up in the microwave. it taste really good cold though