OBAGI - Professional-C® Serum 15%

Mid-Strength Vitamin C Defence for Radiant, Resilient Skin

Obagi Professional-C® Serum 15% is a powerful antioxidant serum formulated with 15% L-Ascorbic Acid to provide advanced environmental protection while visibly brightening and firming the skin. This medium-strength Vitamin C treatment penetrates deeply to help neutralise free radical damage, support collagen synthesis, and improve skin tone. Ideal for normal to combination skin types, it promotes a clearer, more youthful-looking complexion with continued daily use.

Key Benefits

• 15% Pure Vitamin C Power
  Delivers a potent dose of L-Ascorbic Acid to shield skin from environmental damage and oxidative stress.
• Visibly Brightens and Smooths
  Targets uneven pigmentation and dullness to enhance clarity and luminosity.
• Boosts Skin Elasticity
  Encourages natural collagen formation to support firmer, smoother skin texture.
• Protects Against Premature Ageing
  Strengthens skin’s defences to reduce the visible effects of sun exposure and pollution.

How to Apply

Apply 5–7 drops onto clean fingertips and gently smooth over the face, neck, and décolleté each morning. Always follow with a broad-spectrum SPF during the day.

Key Ingredients

• 15% L-Ascorbic Acid (Vitamin C) — A powerful antioxidant that protects, brightens, and firms the skin.
• Ascorbyl Glucoside — A stable form of Vitamin C that works to fade dark spots and even skin tone.
• Propylene Glycol & Water — Lightweight carriers that aid ingredient penetration.

Full Ingredients

Propylene Glycol, Water (Aqua), L-Ascorbic Acid, Alcohol, Ascorbyl Glucoside, Fragrance.

Ingredient formulations may vary by location and batch. Always refer to your product packaging for the most accurate information.

Frequently Asked Questions

What is the difference between Obagi Professional-C 10%, 15%, and 20%?

The 10% is best for sensitive or first-time Vitamin C users. The 15% is ideal for normal to combination skin with some Vitamin C experience, offering a stronger brightening and antioxidant effect. The 20% is the most potent, suited to oily or resilient skin seeking maximum results.

When should I apply Obagi Professional-C Serum 15%?

Apply every morning to clean, dry skin before moisturiser and SPF. Vitamin C works synergistically with sunscreen to provide enhanced antioxidant protection throughout the day.

How long does it take to see results?

Most users notice improvements in brightness and skin tone within 4–6 weeks of consistent daily use. Firming and fine line reduction typically develop over 8–12 weeks.

Is 15% Vitamin C suitable for sensitive skin?

The 15% concentration is best suited to normal to combination skin. If you have sensitive or reactive skin, the 10% concentration is recommended as a gentler starting point.

Can I use this serum with retinol or niacinamide?

Yes — apply Vitamin C in the morning and retinol in the evening. Niacinamide can be used in the same routine without issue.