More questions about preservatives! Is citric acid a preservative? And how much preservative should I use?

There are loads of you with loads of questions about preservatives, so let’s take a look at some of those comments now!HOW MUCH PRESERVATIVE SHOULD I USE?In this post, Question: Why would you leave preservatives out for sensitive skin?, Mariena asks: I use Phenonip in my lotions and emulsified scrubs and was wondering about the…