Rejuvenation Serum contains high molecular weight Hyaluronic acid, a naturally occuring substance present in our body that keeps connective tissue together. Rejuvenation serum further enhances its action by using Pro-Vitamin B5. 91% users noted visible difference to their skin. 74% Organic contents. 85% Plant-based contents. Dermatologically tested. Fragrance free. Made in California, USA. Luxury American Skin care.