I have been using a $350 “big name” product for years that I purchased at a high-end department store. I have tried Proof Skin Solutions, Porcelain Youth Restoring Nectar and I absolutely love it! It has several forms of Vitamin C, peptides, growth factor and antioxidants, just to name a few. It is every bit as good, if not better than the $350 jar of face cream that I have used in the past and this serum completely nourishes my skin. And it’s a fraction of the price of the big name product.