I am 22 and have dry and dehydrated skin. For some while I have been suffering from Seborrheic dermatatis which means I should avoid all oils. This serum has been the perfect solution for me to hydrate and reduce my skin issues. I have been using for a month and can confidently say that it contains everything, from niacinamide, vitamin c…and other beneficial ingredients in one. There is a reason it is expensive but totally worth it!