I came here not hungover, my boyfriend had a bad cold and I couldn't let him have all the fun so I got a treatment, too. I got the mega boost plus extra vitamin c. I was nervous at first but the profession staff put me right at ease, it's spotless, beautiful, and the staff know exactly what they're giving you and the effects. You relax in a massage chair for about an hour and I left feeling awesome- clear headed, alert, ready to take on the night. 24 hours later (including a lot of drinks and very little sleep) i still feel great. My boyfriend's cold improved significantly as well. The only "side effect" I had was a little burning in my arm. I'll absolutely be back next time I'm in Vegas!