The first time I did 500 before reading the instruction, I was itching all over.
I figured better read up on it again, so I started out with 100 mg 3 x a day and I am up now to 400mg and I hardly can feel it, so almost ready to go up again.
I thought when you go out and you want a nice glow I should take some with me and keep taking them so I will look healthy :)