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Obagi Medical Professional-C Serum 20% (1 fl. oz.)
A concentrated anti-aging serum enriched with vitamin C that is suitable for all skin types.
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4 installments of $34.75 with Klarna Learn more
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4 installments of $34.75 with afterpay Learn more
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 vitamin C serum 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.
Apply 5 to 7 drops of Obagi Professional-C Serum to the face, neck and chest using fingertips. Apply to cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.
Application Area: Face
Ideal for these Concerns: Free Radical Damage, Hyperpigmentation, Sun Damage
Ingredient: Antioxidants, Hyaluronic Acid, Vitamin C
Preferences: Clean
Skin Care: Skin Care Treatments
Skin Care Treatments: Face Serums
Skin Type: Acne-Prone Skin, Combination Skin, Dry Skin, Mature Skin, Normal Skin, Oily Skin, Sensitive Skin
Wellness | External Factors: Pollution Defenders and Treatments, UV Ray Protectors and Treatments
Propylene Glycol, Water, L-Ascorbic Acid, Alcohol, Ascorbyl Glucoside, Ethoxydiglycol, Phenoxyethanol, Sorbitol, Sodium Hyaluronate, Zinc Chloride, Calcium Hydroxide, Fragrance.
- Professional-C
- Obagi Medical
- 1 fl. oz
Frequently Bought Together



Total Price: $214.00
Add both to cart
Obagi Medical Professional-C Serum 20% (1 fl. oz.)
A concentrated anti-aging serum enriched with vitamin C that is suitable for all skin types.
Earn 695 reward points when purchasing this product as a rewards member*
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Free delivery after your first order
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You control the frequency
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No commitment. Cancel or delay
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Payment will be taken every month. months.
$139.00
20% off Obagi with code SUN + $75 Gift

Obagi Medical Professional-C Serum 15% (1 fl. oz.)
20% off Obagi with code SUN + $75 Gift

Obagi Medical Hydrate Facial Moisturizer (1.7 oz.)
20% off Obagi with code SUN + $75 Gift
In stock
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4 installments of $34.75 with Klarna Learn more
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4 installments of $34.75 with afterpay Learn more
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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 vitamin C serum 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.
Apply 5 to 7 drops of Obagi Professional-C Serum to the face, neck and chest using fingertips. Apply to cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.
Application Area: Face
Ideal for these Concerns: Free Radical Damage, Hyperpigmentation, Sun Damage
Ingredient: Antioxidants, Hyaluronic Acid, Vitamin C
Preferences: Clean
Skin Care: Skin Care Treatments
Skin Care Treatments: Face Serums
Skin Type: Acne-Prone Skin, Combination Skin, Dry Skin, Mature Skin, Normal Skin, Oily Skin, Sensitive Skin
Wellness | External Factors: Pollution Defenders and Treatments, UV Ray Protectors and Treatments
Propylene Glycol, Water, L-Ascorbic Acid, Alcohol, Ascorbyl Glucoside, Ethoxydiglycol, Phenoxyethanol, Sorbitol, Sodium Hyaluronate, Zinc Chloride, Calcium Hydroxide, Fragrance.
- Professional-C
- Obagi Medical
- 1 fl. oz
Frequently Bought Together



Total Price: $214.00
Add both to cart
Customer Reviews
Top Customer Reviews
Where reviews refer to beauty products or supplements, results may vary from person to person. Customer reviews are independent and do not represent the views of Dermstore.
Reward members earn 50 points for every review written on verified purchases.
The best Vit C serum
Love this serum. It is not sticky and nourishes my skin. It lasts a long time. Would buy again.
Report this reviewI enjoy this Vitamin C serum OK, but…
I like the Obagi Vitamin C Serum 20%, but it’s not my favorite vitamin C serum! I think it works pretty nicely and I think Dermstore was running a 20% off sale on this serum, and I decided to give it a try for the savings It doesn’t necessarily sit as nicely and sink into my skin as nicely as another Vitamin C serum I love that’s very popular and very expensive! This is a top 3 vitamin c serum for me though. Give it a try! It’s a solid 4/5 stars and at a better price point.
Report this reviewVit C serum
Love this serum! I’ve tried numerous different brands and I feel like I notice a difference with this one, when used regularly! Will buy again for my aging skin!
Report this reviewlovely product
A lovely vitamin C product I've been using daily for about a year. This product is lightweight, soaks in quickly, and has a light, pleasant scent.
Report this reviewThe best C serum
Goes on evenly, not to sticky. Dries smooth and help boost sunscreen effectiveness.
Report this reviewVit c
This vit c is by far the best smelling. I was using skin c but it smelt like hotdog water.
Report this reviewMy tried & true
I have been using Obagi Vit C for about 4 years , it’s my can not be without part of my morning routine. I notice decrease discoloration , great texture , and a nice glow.
Report this reviewGlowing skin!
I get so many compliments on my glowing skin. I love this Vitamin C serum. I saw results in about 7 days. I use this morning and evening.
Report this reviewI truly saw an improvement!!
I’ve used the skinceuticals vit Cs ( 3 diff ones) but the changes I saw with this were so far the most pronounced and visible. I stopped because I believed all the marketing about skinceuticals and abt. This being too high in alcohol denat. And %age, but for my hyper oily skin it worked I got a very slight tingling sensation only for the first week no breakouts and a slight but noticeable improvement in my melasma. I’d recommend this specially if you don’t have dry sensitive skin and don’t want to spend big bucks on the skinceuticals stuff!
Report this reviewNo difference
I regret buying this. It did nothing for me and was way to expensive. Splurge on skin cuticles if you are comfortable spending this much. Oxidizes quickly despite proper storage
Report this review