20% off SkinMedica + an Extra 20% off Auto-Replenishment. SHOP NOW
FREE US Shipping $50+ Auto-Replenishment 15% off First App Order Dermstore Rewards
Obagi Medical

Obagi Medical Professional-C Serum 20% (1 oz.)

A concentrated anti-aging serum enriched with vitamin C that is suitable for all skin types.

Rewards members earn 750 points on this order. Register & opt in at checkout.

Join Dermstore Rewards

$150.00

Or 4 interest free payments of $37.50 with


In stock | Usually dispatched within 24 hours


Delivery & Returns
Free delivery is available on all orders over $50. Please see our shipping information page for all available delivery options.
If I'm not completely happy with my item?
Please see our returns policy.
*points earned on final checkout price, after any applied discounts.

Frequently Bought Together

Obagi Medical Professional-C Serum 20% (1 oz.)

This item

Obagi Medical Professional-C Serum 20% (1 oz.)

$150.00

Total Price:

$275.00

Other Customers Bought

Customer Reviews

4.72 stars out of a maximum of 5

5 stars rating 855 reviews

4 stars rating 87 reviews

3 stars rating 33 reviews

2 stars rating 18 reviews

1 stars rating 18 reviews

Top Customer Reviews

Reviews and results may vary from person to person. Customer reviews are and do not represent the views of The Hut Group.

Bad seal on lid but good product otherwise

4 stars out of a maximum of 5

I'd been using this for almost 3 weeks and didn't really see a difference. I figured I either needed more time to see results or needed something more potent since I've been using vit c for years. The smell was fine and the texture is a bit more oily than I expected, but I could've dealt with that. The main issue was that the bottle seemed to be defective and didn't close properly; when I twisted the cap on tight the dropper extended, causing a gap for air to get in and quick oxidation. I'm not sure if this is the reason why I didn't see stellar results but either way thanks to Dermstore's excellent customer service I still have faith in the brand and am excited to try another Obagi product in the future. I put in a return request in within 30 days of receiving and they refunded me in full. Thanks Dermstore!

by Anonymous Verified Purchase

Was this helpful?

Excellent C serum

5 stars out of a maximum of 5

This is one of my favorite vitamin C serums.. I just use a little bit in the morning. It's very gentle on my skin. Highly recommended.

by Anonymous Verified Purchase

Was this helpful?

Worth every penny. So good!

5 stars out of a maximum of 5

I love this serum. It's make my face feel great & It smells good too which is nice.

by Anonymous Verified Purchase

Was this helpful?

So far so good

5 stars out of a maximum of 5

I've been using an Obagi vitamin C serum for about 9 months. I started with the 10%, then the 15% and now the 20%. I've only been using it for a few weeks so I can't speak to long term results but my sensitive skin likes it so far!

by Anonymous Verified Purchase

Was this helpful?

Love this product!

5 stars out of a maximum of 5

I have been a longtime user of Skinceuticals CE Ferulic but decided to try this product given its higher C concentration as well as the slightly lower price point. I have loved it thus far and have not experienced increased irritation. The smell is really nice also. I am slowly becoming an Obagi convert!

by Anonymous Verified Purchase

Was this helpful?

Game changer

5 stars out of a maximum of 5

Using this Vitamin C serum has made the biggest difference in my skin! It gives such a great glow and doesn't have an odor like other Vitamin C serums I have tried. I use it morning and night!

by Anonymous Verified Purchase

Was this helpful?

A great go-to

5 stars out of a maximum of 5

Love this vitamin C - a great go-to and no noticeable fragrance. Bonus when I can buy it on sale!

by Jessica Verified Purchase

Was this helpful?

Holy grail

5 stars out of a maximum of 5

I won't use any other vitamin c serum! Absorbs well, smells divine, not sticky, no added colors, and very stable. Lasts exactly three months before any visible oxidation.

by Anonymous

Was this helpful?

One of the best

5 stars out of a maximum of 5

I use vitamin C serum routinely and this is one of the best formulas. No breakouts, dries quickly, and feels great on skin.

by Anonymous Verified Purchase

Was this helpful?

Definite Difference!

4 stars out of a maximum of 5

I've been using this product for about a month and a half and I've definitely noticed a significant difference in the dark spots and hyperpigmentation (including reduction in freckle darkness). I still have some problem areas though. I'm upgrading to the 15% serum because I don't think this product was strong enough for my skin. So, the only reason I gave it 4 stars was because it may not be strong enough for some. I say less is more when you're starting out, but if you've used brightening serums before without any trouble than I'd go with a higher %.

by Jennifer

Was this helpful?