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Professional-C Serum 20%
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Nothing in this product works against any of your four letters, so it is safe for your skin type.
Not recommended for your sensitivity
Obagi Professional-C Serum 20% infuses your skin with L-ascorbic acid, the only form of vitamin C suitable for topical application.
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Approved for Baumann Skin Types
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Approved for 13 of the 16 Baumann Skin Types. Dr. Baumann reviews every product against all 16 types before it goes on the site.
What it is and what it does
Obagi Professional-C Serum 20% infuses your skin with L-ascorbic acid, the only form of vitamin C suitable for topical application. Designed to penetrate deep into your skin, this formula provides effective antioxidant protection from UV damage as it brightens away hyperpigmentation and encourages the growth of collagen and elastin fibers. Hyaluronic acid binds moisture to your skin to prevent dryness.
Who it is for
Approved for 13 of the 16 Baumann Skin Types.
Key ingredients

Attracts water, giving cells and skin volume. Plays a key role in cell signals and other vital processes. It cushions the skin, providing resilience and firmness. This moisturizing humectant temporarily plumps fine lines and wrinkles. HA makes skin feel dewy and look radiant and glowing. Great for oily skin because it feels lightweight and non-greasy on the skin. Safe for all skin types. HA helps other skincare products get into the skin. This antiaging and hydrating ingredient can radically alter how your skin routine works by affecting penetration and absorption of other ingredients- so make sure you use it in the correct step of your skin care routine.
Full ingredient list
Product type and skin type data
| Brand | Obagi |
|---|---|
| Product type | Facial Treatment |
| Size | 1 fl. oz. |
| Item number | OB-OMD50539 |
| Approved Baumann Skin Types | ORPW, ORPT, ORNW, DRNW, DRPT, DRPW, DSPT, DSPW, DSNW, OSPT, OSNT, OSPW, OSNW |
| Recommended for these sensitivities | Acne, Redness |
Frequently bought together
Dr. Baumann pairs these together.
Reviews
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