HOWEVER, after that, I decided to use less gel and haven't had the drooling or the intense burning (just a little burn, as expected).
I have noticed that my teeth are whiter after using this. I just hope that the company will see this and update their instructions, because the product itself is not bad. It is such a simple and easy fix! So I'd give this 3.5 or 4/5 stars. :)
*I received this product complimentary to test and give my honest and unbiased opinion*