Professional-C® Serum 20% 5ml (travel size)

Professional-C® Serum 20% 5ml (travel size)

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Formulated with 20% L-Ascorbic Acid and Sodium Hyaluronate, this rapidly absorbed serum aids in brightening and evening skin tone, diminishing the look of dark spots, bolstering antioxidant protection, and enhancing the appearance of fine lines and wrinkles. Achieve a revitalized, hydrated radiance and a more youthful complexion. Perfect for those with normal to oily skin.

Skin Type

Oily SkinNormal Skin, Combination skin

Key Benefits

  • Helps counteract the effects of oxidative stress triggered by blue light and infrared radiation*, which contribute to premature skin aging.

  • Helps neutralize free radicals

*2023 In-Vitro Antioxidant Potential Assay. Data on file at Obagi Cosmeceuticals LLC.


Dispense 5-7 drops and apply evenly to freshly cleansed and toned skin in the morning. Follow up with SPF before makeup application.

Key Ingredient

L-Ascorbic Acid 20%

The industry’s gold standard of vitamin C to help defend from free radicals and works to brighten skin tone and reduce signs of past skin damage.

All ingredients:

Propylene glycol, aqua/water/eau, L-ascorbic acid, alcohol, ascorbyl glucoside, ethoxydiglycol, phenoxyethanol, sorbitol, sodium hyaluronate, zinc chloride, calcium hydroxide, fragrance (parfum).


1. What percentage should I get?
The Obagi Professional-C Serum 20% is a potent and concentrated serum made with 20% L-Ascorbic acid and is suitable for normal, oily, and combination skin types. If you’re looking for a gentler option, you can opt for the Obagi Professional-C Serum 10%.

2. Is this product safe for pregnant women or nursing moms?
Check with your physician regarding any topical products you wish to use during pregnancy or while you are nursing.

3. Can I use Professional-C Serum 20% with Daily Hydro-drops or a moisturizer?

Yes, Daily Hydro-Drops or your moisturizer goes after the Professional-C Serum in terms of product layering. 

4. How long will it take to see results?
Give your skin time to adjust to the product, adjustment period usually takes about 4 to 6 weeks. Results may vary per individual. Your prescribed protocol and directions of use should be determined by your board-certified dermatologist.