This device is WONDERFUL! Gives you a gentle, refreshing massage for under the eyes after a long day of staring into the computer screen. Safe for people with contact lenses, too!
i didn't use this device for a long time, however i find that the size and that one can recharge it via USB port is pretty convenient. this device can easily fit into your purse.
it helped my skin with absorbing serum and my eyes felt really relaxed afterwards. im not a person who has to deal with under eye circles so im not sure how effective this gadget is for that, but it felt relaxing none the less.