It takes too long for the product to arrive. I have completed about two bottles of this product, I do not see any difference in my memory. I do things to see if there are differences but nothing. I have one more a third bottle which I will complete, but if there are no major changes with the two bottles how will there be with the third? Oh, there is a little growth on the top of my head about the size of a green pea since I have taken your product which was never there before, but I am not saying it is your product but now I must go to the doctor.