Check your inventory!
I was so excited to get this product in the mail. I checked everyday for it. Once it was received, I had planned on using it that evening before I went to sleep. Once I opened the package, I wanted to be sure that all the items were there before I started. They were all there! The light however was dead. This was shipped to me with batteries that did not work. I have no problem purchasing my own batteries but I wish I would have known ahead of time. I'm thinking that the power button to the light was somehow clicked on in transit and ran out of juice upon delivery.  This is just a review to be sure everyone knows to check their items before beginning the process. I'm glad I did so before starting or I'd be stuck with a mouthful of goop and no way to activate it.
Rating: 3 stars