Q&A: Do we need to add extra preservative to an exfoliating scrub to cover the extra exfoliants?
In the monthly Q&A, JimmieTF asked, Hi Susan, I’ve made 2 sugar scrub bases, one with sodium cocoyl isethionate or SCI (it’s thick like syrup, so it does not separate) and one with SCS (sodium coco sulfate), and both of course have a preservative in them. Optiphen Plus (INCI: Phenoxyethanol (and) Caprylyl Glycol (and) Sorbic...