Obagi Professional-C Serum 10% delivers concentrated vitamin C protection in every application. Formulated with 10% L-Ascorbic Acid, the gold standard in skincare, this lightweight serum works hard to defend against fine lines, wrinkles, and environmental damage while brightening your complexion. Perfect for dry or sensitive skin, it neutralizes free radicals and strengthens your skin barrier without heaviness. Experience visibly renewed, radiant skin as this fast-absorbing serum becomes your daily antioxidant essential.