In any event, I picked up the Boots serum about a year ago at Target. To be perfectly honest, I'm still not sure why serums exist. There are deeper-treating or more nutrient-infused moisturizers on the market, if that's what you're looking for, and frankly I still suspect that serums are mostly a way for skincare companies to convince you that you need another product in your growing three-ring circus of a routine.
