the liquidity of the vit c seems to have glued down some of the flaking for now. i will wait for it to settle before adding the spf. apparently despite what social media suggests, you should use face products on dry skin not damp for better absorption and fewer possible side effects. and let each layer dry before adding the next. so that is now what i try to do. putting in on damp skin reduces the effeicay and can cause more irritation - who knew? not the influencers that's for sure. i generally have always done it on dry skin, but didn't wait between layers as much. but then again i don't really have that many layers either. max three. typically two. sometimes one.