PROFESSIONAL-C® SERUM 20% 30ml

Discover Obagi’s bestselling Professional C® Serum 20%, formulated with L-Ascorbic Acid and Sodium Hyaluronate. Fast-absorbing serum helps to brighten and even skin tone, reduce the appearance of dark spots, strengthen antioxidant defenses, and improve the appearance of fine lines and wrinkles. For a supercharged, hydrated glow and more youthful-looking skin. Ideal for normal to oily skin types.

• 91% of users reported skin appeared bright and more hydrated*
• Combats oxidative stress induced by blue light and infrared radiation** that cause early signs of skin aging
• Formulated with L-Ascorbic Acid to brighten skin
• Helps to neutralize free radicals

*Obagi survey analysis, Vitamin C products: April 28, 2010. Data on file at Obagi Cosmeceuticals LLC.

**2023 In-Vitro Antioxidant Potential Assay. Data on file at Obagi Cosmeceuticals LLC.

Best of Beauty - SKIN - Best Antioxidant Facial Serum by Allure, 2025

Editor's Choice Awards - Dermatologist Favorite Vitamin-C Serum by Oprah Daily, 2025

How To Use

• Step 1: Apply 5-7 drops in the morning after cleansing and toning, before moisturizer.
• Step 2: Follow-up with SPF before makeup application.
• Note: Use within 3-6 months of first opening.

Ingredients

L-ascorbic Acid

Known as the purest form of Vitamin C, L-ascorbic Acid helps neutralize free radicals, minimize the look of fine lines and wrinkles, and brighten skin tone.

Full Ingredients

Propylene glycol, aqua/water/eau, ascorbic acid, alcohol denat., ascorbyl glucoside, ethoxydiglycol, sorbitol, sodium hyaluronate, fragrance (parfum), citrus aurantium dulcis (orange) peel extract, citrus paradisi (grapefruit) fruit extract, phenoxyethanol, calcium hydroxide, zinc chloride, citric acid, caprylyl/capryl glucoside, amyl cinnamal, limonene, hexyl cinnamal, benzyl benzoate.