Description
Reviews
Obagi Professional-C Serum 15% delivers pure L-Ascorbic Acid in a fast-absorbing formula suited to normal to combination skin. This antioxidant serum helps brighten the look of skin, even tone, and support daily defenses against free radicals. It also improves the appearance of fine lines and wrinkles with consistent morning use. Apply after cleansing as the first treatment step, then follow with moisturizer and SPF. Explore more options in our Skin Care collection.
PRODUCT OVERVIEW
Obagi Professional-C Serum 15% is a high-performance antioxidant facial serum formulated with 15% L-Ascorbic Acid, the pure form of vitamin C. It is designed for normal to combination skin that wants visible brightening and stronger protection against environmental stress.
The lightweight texture absorbs rapidly so it layers cleanly under moisturizer and sunscreen. Regular morning use helps support a brighter, more even-looking complexion while improving the appearance of fine lines and wrinkles.
This serum fits a straightforward morning routine: cleanse, tone if desired, apply the serum, follow with moisturizer, and finish with broad-spectrum SPF. At 15% it offers a balanced strength that many users find effective for daily use without the higher intensity of the 20% formula.
KEY FEATURES
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15% L-Ascorbic Acid, a widely preferred concentration for daily antioxidant support.
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Lightweight, fast-absorbing serum texture.
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Includes ascorbyl glucoside as a complementary stabilized vitamin C derivative.
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Oil-free formula that does not leave a greasy residue.
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Glass bottle with precision dropper for controlled application. Available in 1 fl oz and 0.42 fl oz sizes.
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Formulated for normal to combination skin types.
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Designed for consistent morning application as part of an antioxidant routine.
HOW IT WORKS
L-Ascorbic Acid is the pure, active form of vitamin C. At 15%, it helps neutralize free radicals that contribute to a dull, uneven skin tone. The formula supports a brighter, more even complexion and can improve the appearance of fine lines and wrinkles with regular use.
The serum absorbs quickly into the skin so the active ingredients remain available. Antioxidant support works best when paired with daily broad-spectrum sunscreen. Always apply SPF after the serum and moisturizer in the morning.
WHO IT'S FOR
This serum is intended for adults with normal to combination skin who want a reliable daily vitamin C treatment. It suits people concerned with the appearance of uneven tone, dullness, or early fine lines and who prefer a balanced strength.
It is often a good choice for those who have already used lower-strength vitamin C or who find the 20% formula too intense. Very dry or highly sensitive skin may prefer the 10% option first. Patch testing is recommended. This product is for external cosmetic use only and is not a treatment for medical skin conditions.
WHY CHOOSE THIS PRODUCT
Obagi Professional-C Serum 15% offers a well-balanced concentration of pure L-Ascorbic Acid that many users find effective for everyday antioxidant support. The formula is lightweight and absorbs quickly, making it easy to layer under daytime products.
It is positioned for normal to combination skin, reducing the chance of a heavy feel. Clear usage instructions and consistent packaging with a precision dropper make daily application straightforward. Customers looking for a professional-grade vitamin C serum at a mid-range strength will find this option practical and focused.

