One should not experience any side effects while taking Rejuvii. If you do, please contact us via the phone number on the back of the box. One thing that users do report is increased dreaming. Some people really like it and others don’t. There seems to be little correlation between dreaming and sleep quality, so it shouldn’t keep you from getting the benefits from Rejuvii. If the dreams bother you we suggest not eating after 6pm and possibly taking a half dose of Rejuvii.