Obagi Professional-C Serum 20%, 1.0 oz / 30ml

Obagi Professional-C Serum 20% is Obagi's bestselling and highest-concentration Vitamin C serum — an award-winning antioxidant treatment formulated with L-ascorbic acid and sodium hyaluronate. Winner of Allure's Best of Beauty Award and Oprah Daily's Editor's Choice Award for Dermatologist Favorite Vitamin-C Serum, it's a genuine skincare staple among dermatologists and longtime users alike.

Fast-absorbing and lightweight, this serum brightens and evens skin tone, reduces the appearance of dark spots, and strengthens the skin's antioxidant defenses against blue light and infrared-induced oxidative stress. L-ascorbic acid — known as the purest, most bioavailable form of Vitamin C — neutralizes free radicals while helping minimize the look of fine lines and wrinkles. Sodium hyaluronate binds moisture to the skin, delivering a supercharged, hydrated glow.

In consumer testing, 91% of users reported skin appeared brighter and more hydrated. Ideal for normal to oily skin types, Professional-C Serum 20% is designed for daily morning use before sunscreen and makeup — the earlier it's added to a routine, the longer skin stays youthful and radiant.

Key Ingredients

• L-Ascorbic Acid (Vitamin C) — the purest form of Vitamin C; neutralizes free radicals and brightens skin tone
• Sodium Hyaluronate — binds moisture to prevent dryness
• Citrus Extracts — support antioxidant defense

Details

• Size: 1.0 FL OZ / 30ml
• Skin type: Normal to oily, combination
• Usage: Apply 5-7 drops in the morning after cleansing, before moisturizer and sunscreen
• 100% authentic, brand new, sealed