Obagi Professional-C Serum 10% L-Ascorbic Acid Vitamin C Serum, 1 fl oz / 30 mL. Brand new in original packaging. A professional-strength vitamin C serum from Obagi Medical, formulated with 10% L-ascorbic acid. Great addition to a skincare routine focused on brightening and maintaining a smooth, refreshed-looking complexion. Condition: New, unopened\ Size: 30 mL / 1 fl oz\ Strength: 10% L-Ascorbic Acid\ Brand: Obagi Medical Please review photos for packaging and product details. Stored carefully. #obagi #vitamincserum #skincare #obagimedical #skincareroutine