First off, this hotel is a must see. It's absolutely stunning. After stumbling across this place, I decided to try out a oxygen bar for the first time. $22 for 15 minutes and a free massage. Who doesn't want a free massage? In total this experience lasted about 30-40 minutes. The girls working at the bar where very knowledgeable and were an all around pleasure to deal with. They do offer additional products for purchase such as the massagers, and some liquid oxygen to take with you. They don't pressure you in any way, they just inform you on what is available and what the cost is. They did sell us on these little shots that tasted like cinnamon, which were supposed to enhance your mood and settle your stomach. Whether it was all in my head or not, to me they actually work. Once my time was complete, I felt like a million bucks. It's worth a try.