The Obagi Professional-C Serum range is a collection of medical-grade antioxidant serums formulated with different strengths of L-ascorbic acid (pure Vitamin C) to help brighten the skin, improve uneven tone, and reduce visible signs of aging. Available in 10%, 15%, and 20% concentrations, these serums are designed to provide targeted antioxidant protection while supporting collagen production and overall skin radiance. (obagi.com)

The lightweight formulas absorb quickly into the skin and help defend against environmental stressors such as pollution and UV-related free radical damage. They are also formulated with hydrating ingredients like sodium hyaluronate to help maintain skin moisture while improving smoothness and elasticity over time. Regular use helps promote a clearer, firmer, and more youthful-looking complexion. (obagi-professional.com)

Strength Guide

• 10% Vitamin C Serum – Best suited for beginners, dry skin, or sensitive skin types looking for gentle antioxidant protection and brightness support.
• 15% Vitamin C Serum – A balanced mid-strength option ideal for normal to combination skin types wanting noticeable brightening and anti-aging benefits.
• 20% Vitamin C Serum – The strongest concentration, recommended for experienced Vitamin C users or oily skin types targeting deeper discoloration, dullness, and visible aging concerns.

Because these are potent L-ascorbic acid formulas, some tingling may occur during early use, especially with the 15% and 20% versions. Daily sunscreen use is strongly recommended when incorporating high-strength Vitamin C products into a skincare routine.

With consistent use, the Obagi Professional-C Serums help improve skin clarity, glow, firmness, and overall texture while providing powerful antioxidant support for healthier-looking skin.