THENFour years ago today, I wrote a post about a product I had come across at a Pixi blogger event. It was called Glow Tonic and it was the first time in a while I'd seen any kind of 'liquid acid' or 'acid toner' (wish I'd trademarked that one at the time) that looked like it would actually work, outside of Biologique Recherche's P50. Four yea...
