I opened the Amazon box and I found that the original circular seal on the top of the Goal Zero product box had been cut, then a new circular seal was put over it. I returned it and was offered a replacement by Amazon.

I will admit I was extremely doubtful when I started taking this product. If coffee couldn't get me up and going in the morning, I was sure there wasn't much else that would. But I started taking MasterBrain about a month ago before I would go into work and let me just say I have not had any better days at work! I also like that it not only has the morning version but a night version too. I also struggled with getting restful sleep due to my mind going a mile a minute. After taking MasterBrain PM I've gotten the most restful sleep. I would definitely recommend MasterBrain for anyone and everyone!

Don't let the size of this book fool you. It's hundreds of pages long and the font seemed big to me, but it's packed full of information. Definitely plan to take your time with this one, but it's well worth it.