I have seen on YouTube that we can make our own Serum, you need vegetable glycerine + water + Vitamin C powder but if you don't have the time and patience to do all this. You can try the product that I tried recently, the Triple Action Vitamin C Serum by VoilaVe from Amazon. I decided to try this product because I have wrinkle problems and dry skin. I found this on Amazon and was impressed of the customers positive reviews. I'm so glad that I tried this serum, just after a few weeks of using it I felt that my skin is clearer, healthier and refreshed. Give it a try.