Just had to put in my two cents about NO JET LAG. It is great stuff. It is a homeopathic remedy from New Zealand, as Peggy said. We flew from Bermuda to LAX and then down to Tahiti. We should have been totally shattered after all that time flying!! You chew these tiny mint flavored tablets every 2 hours you are awake while flying, and the difference is unbelievable! We were able to check into the hotel and we were good to go. Did it on the way home, arrived Christmas Eve, and hosted Christmas dinner as if I had been home all week!! It is used by Air New Zealand staff, and you can purchase from Magellans online or Wholefoods in the US. I DO not leave home without it. Plus it does not interfere with any medications!!!! Know this sounds like a commercial, but it really is that good. There are reviews on Magellans online site. Check it out.