Supposedly it's possible to purge when you start on AA because it increases cell turnover.

I say supposedly because I haven't heard people talk about it happening much. I have heard people say it can take a few weeks to start doing its job though. The purge, if that's what it is, should go away within the next couple weeks to a month or so. AA is a good ingredient, so overall, in my opinion, it's a good option to use.