I apply acids (AHA or BHA) first and then pat on any vitamin c or antioxidant serums after.
I am not a skin-care professional. But I do have lots of experience with retinol, glycolics, and topical C. I suggest using Vit C during the day. I would not use glycolic with it. Some professionals say it's ok and others say not. If nothing else, it's too irritating. I use a moisurizing glycolic acid at night, alternating with Renova every third night. Works for me.
answered 2 years, 10 months ago