Obagi Professional-C® Serum 15% is a professional-grade antioxidant serum formulated with 15% L-ascorbic acid, the purest form of vitamin C. Ideal for normal skin, it helps brighten the complexion, improve the appearance of fine lines and protect against environmental damage.
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Every day your skin faces environmental stressors including UV exposure and pollution, both of which contribute to premature skin ageing through the production of free radicals.
Obagi Professional-C® Serum 15% contains 15% pure L-ascorbic acid, the gold standard form of vitamin C. This high-performance antioxidant serum helps defend the skin against free radical damage while improving the appearance of fine lines, uneven skin tone and dullness.
Developed primarily for normal skin, it provides an excellent balance between potency and tolerability, making it the ideal choice for those who want stronger antioxidant protection than the 10% serum without moving to the highest concentration.
Contains 15% pure L-ascorbic acid
Helps brighten dull skin
Improves the appearance of uneven skin tone
Helps reduce the appearance of fine lines and wrinkles
Provides antioxidant protection against environmental damage
Supports collagen production
Suitable for normal skin
Fast-absorbing daily formula
Vitamin C is one of the most evidence-backed ingredients in skincare, but choosing the right strength is important.
At Dr Ed Robinson Clinics, we often recommend the 15% Professional-C® Serum for patients with normal skin who are looking to elevate their antioxidant routine. It offers an ideal middle ground between the gentle 10% formulation and the more intensive 20% serum, delivering excellent antioxidant protection while remaining suitable for daily use.
15% L-Ascorbic Acid
The purest and most biologically active form of vitamin C. Helps defend against free radical damage while improving the appearance of fine lines, uneven skin tone and skin radiance.
Ascorbyl Glucoside
A stable vitamin C derivative that complements pure L-ascorbic acid and helps support brighter, healthier-looking skin.
Propylene Glycol
Helps deliver vitamin C effectively into the skin while supporting hydration and ingredient penetration.
Ideal for anyone with:
Normal skin
Dull complexion
Uneven skin tone
Early signs of skin ageing
Fine lines
Environmental skin damage
Anyone wanting a stronger vitamin C serum than 10%
Apply 5–7 drops to clean, dry skin every morning after cleansing.
Massage evenly over the face, neck and décolletage before applying moisturiser and broad spectrum SPF. Allow the serum to absorb fully before applying makeup.
Store in a cool, dark place and replace the cap immediately after use to help maintain the stability of the vitamin C.
If your skin comfortably tolerates the 10% serum and you're looking for greater antioxidant support, the 15% formulation is the natural next step. It delivers increased vitamin C activity while remaining well tolerated by most normal skin types. Patients wanting the highest concentration may later progress to the 20% serum under professional guidance.
More more general enquiries, please take a look at some of our frequently asked questions.
It's designed primarily for normal skin and is ideal for patients looking for stronger antioxidant protection than the 10% formulation.
The main difference is the concentration of pure L-ascorbic acid. The 10% serum is best for sensitive skin, the 15% serum suits most normal skin types, while the 20% formulation is intended for skin that is already accustomed to higher-strength vitamin C.
Yes. Professional-C® Serum 15% is designed for daily morning use as part of your skincare routine.
Absolutely. Vitamin C complements sunscreen by helping defend against free radical damage, but it doesn't replace SPF. Daily sun protection remains essential.
Yes. Many people use vitamin C in the morning and retinol in the evening, allowing both ingredients to work effectively within the same skincare routine.
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