could be a really great product [SEP] this seems to be in general a nice face serumwhich moisturise my skin very wellit is a day serum set so one ampulla for each day and it seems to be a little expensive for a one week setbut i actually can notice the improvements so you can use it from time to time to keep the resultsbut the biggest problem is the glass packagingyou can actually cut yourself or get some glass inside of the ampulla and apply it to your face if you are not very careful with it