Obagi Professional-C Serum 20%

WHY SYDNEY LOVES IT: Vitamin C serum is the first place to spend money in your routine. Medical-grade vitamin C serum can't be replicated at the drugstore. I prefer Obagi Vitamin C Serums to other medical-grade brands due to the texture and price. It's antioxidant of the morning skincare routine. If you can tolerate 15% you can most likely tolerate 20% but I recommend increasing to 20% after using 1 bottle (6 month supply) of 15%. From here try adding the 30% ascorbic acid Obagi Microdermabrasion Polish+Mask 1-2 times weekly.DETAILS: Supercharge your skin’s glow with vitamin C. Made from the industry’s gold standard of vitamin C, L-ascorbic Acid, our vitamin C serums are formulated at pH levels shown to optimize stability, permeability, and efficacy -- instantly absorbing into the skin for lasting results. Formulation mastery, harnessing the power of L-ascorbic acid A powerful antioxidant that fortifies the skin barrier defenses to help brighten, renew, and reduce signs of previous vi