I can say that the serum actually works, slowly, but it is true) I plan to continue using it, by the way I still have a couple of times, but I do not think that 2 days will be radically changed. I think if you use the course in a month, for prevention, then about the appearance of some kind of goose paws you can not worry) And who already has problems, I think with regular use the situation will get better)