Obagi Medical Professional-C 10% Vitamin C Serum, 0.42 oz — Brightening Antioxidant for Sensitive Skin & Fine Lines

Obagi Professional-C 10% Vitamin C Serum is a daily antioxidant serum formulated to brighten dull skin and help reduce the visible appearance of fine lines and wrinkles while being suitable for sensitive skin types.

This concentrated 0.42 oz serum uses L-ascorbic acid in a medical-grade formula to deliver antioxidant protection, support moisture retention, and even skin tone. The lightweight liquid absorbs quickly, making it an easy step to add to morning or evening routines for those seeking a clearer, fresher-looking complexion without heavy residue.

How quickly will I notice brighter skin?

Many users observe improved radiance soon after introducing a stable Vitamin C serum into their routine, with clearer, more even tone developing over several weeks. Results vary by individual skin condition and consistency of use.

• Apply daily to clean, dry skin for cumulative improvement.
• Initial surface brightening can occur within days; deeper tone changes often take 4–8 weeks.
• Complement with sunscreen to preserve brightness gains.

Is this serum appropriate for sensitive or normal-to-oily skin?

This 10% Vitamin C concentration was created to balance potency with tolerability, making it a common choice for sensitive complexions and those with normal to oily skin. If you have very reactive skin, patch testing and gradual introduction are recommended.

• Lower 10% L-ascorbic acid concentration reduces irritation risk compared with higher strengths.
• Lightweight texture suits oilier skin that dislikes heavy moisturizers.
• For sensitive skin, start every other day and increase frequency as tolerated.

How does this serum help with fine lines and hydration?

Vitamin C supports the skin’s natural repair pathways and can make lines appear less noticeable over time when used consistently. The formula also aids in moisture retention, improving skin texture and plumpness that visually softens fine lines.

• Antioxidant activity helps protect against environmental stressors that accelerate visible aging.
• Improved hydration reduces the appearance of crepey or fine-lined areas.
• Regular use promotes a smoother, more even surface that reflects light more uniformly.

How should I incorporate it into my skincare routine?

Use the serum after cleansing and toning, before heavier moisturizers or sunscreen. Apply a few drops to face and neck, then follow with moisturizer; use SPF during daytime to protect treated skin.

• Apply in the morning under sunscreen for daytime antioxidant defense.
• Can also be used at night to support overnight renewal.
• Start gradually if combining with strong actives (retinoids, exfoliants).

Who this is for: Obagi Professional-C 10% Vitamin C Serum is suited for individuals seeking a medically formulated antioxidant serum to brighten skin tone, support hydration, and reduce the appearance of fine lines. It appeals to users with normal to oily skin and those with sensitive skin who prefer a moderate Vitamin C concentration; it also works well for anyone wanting a lightweight, fast-absorbing product to add antioxidant protection to their daily regimen.