I'm in my late 20s and generally suffer from horrendou jetlag that lasts weeks and profoundly disrupts my sleep and wake patterns. I used these pills on a 12 hour trans-Atlantic flight, and I will use them again on the return trip. At roughly $7 and even with addtional s/h, these pills as sold by this seller are noticeably cheaper than if you buy them in the store. I had a pleasant flight and recovered from jetlag faster than usual, and they at the very least, do not hurt you or mess up your rhythm when you follow the instructions. I recommend them to anyone who wants an edge up during long flights.
I do have to add though, that my flight was unusually comfortable since it was half full I got my own middle row on a newly outfitted Singapore Airlines plane. I also was using an anti-germ/virus spray as well as anti-sickness vitamin pills (the effervescent kind created by a teacher), and I also brought and drank 2 liters of my own water onto the plane, in addition to the many cups of water I was served.
I slept VERY well on the flight, I thought the pills gave me more energy while also making me more relaxed. I forgot my last dosage when I landed, but again, my jet lag did not feel nearly half as bad as usual and I recovered from it much faster than usual.
If you are truly serious about beating jet lag, you will probably want to incorporate these pills into a larger program (like I did) but the pills on their own do give you a noticeable effect.
I found these in my local luggage store for almost twice as much as this Amazon seller. I used it on a 12 hour flight across several time zone. Usually my jet lag on this flight is horrible, so I went a little overboard by using this 'No Jet Lag' as well as a 'No Germs/Viruses' spray (sold in a convenient security approved tiny spray bottle) as well as those 'No Sickness' effervescent tablets created by a teacher I additionally brought and drank 2 liters of my own bottled water in addition to the many cups of water on the flight.
The flight itself was Singapore Airlines on one of ther newly outfitted planes