If you're not familiar with retinoids, they are a derivative of vitamin A and are one of the few clinically proven ingredients to address skin rejuvenation including helping with age spots, acne and wrinkles.  You'll see them listed as retinal, retinol, retinal palmate, and many others. Bottom line is that if you were born prior … Continue reading Product Review: Peter Thomas Roth Professional 3% Retinoid Plus