MeiMeiReview review for Ultimate Collagen Ampule Serum

I have been using it for 5 days and make the following comments: good moisturizing, in the northern summer I only use this toner and serum, not a moisturizing cream. But still feel that it has enough moisture, the skin is plump. My skin is oily, so morning oil is inevitable, but not too much. About the wrinkle reduction effect, of course, it can't be seen immediately, but basically the skin of a 19-year-old like me has no wrinkles so I can't comment.