It is not adviseable to use such shampoo's on them. And if you do use the Advantage, be sure to put it on the back of the neck area so that the kitten can not lick it off. My kitten still found a way to get near the spot we applied it so I took a large coffee filter and cut a hole out of the middle. Then I put it over his head to act as an E-collar. We had one from my previous cat but no collar and it would have been way too large anyway. But the coffee filter worked just fine! Also, since my cats have always been very sensative to the smell, they suggested only applying half of the dose one day and then the rest the next day.
*my old cat used to go and roll in his litter box (that had clumping sand!) after a bath. We gave us since he them smelled of urine and had sticky sand all over.