Return to Product Details
Obagi Professional-C Serum 20%

Reviews For Obagi Professional-C 20% Vitamin C Antioxidant Serum

$85.00

Filtered by: Star Rating: 5 stars Clear Filters

1,280 Reviews
November 02, 2026

Love this vitamin C serum!

Love this vitamin C serum! It feels lightweight, absorbs quickly, and leaves my skin looking brighter, smoother, and more radiant. A great addition to my daily skincare routine!

Profile Photo

LovelySkin Customer

from South Carolina

Age Group: 40-49

Wavy, Color treated hair

Normal Skin

Verified Purchase

0 people found this helpful

November 01, 2026

A keeper in my routine

I've been using this for a few weeks, and feel I'm seeing a clearer, firmer, and more radiant complexion. I have sensitive skin and tried the 20% after a LovelySkin customer rep suggested it (after using the 15% for quite a while). Appreciated the advice, and yes - my skin is loving the 20% C.

Profile Photo

LovelySkin Customer

from Oregon

Age Group: 70-79

Verified Purchase

0 people found this helpful

October 30, 2026

Skin like glass!

Love this new Vitamin C product I bought. My skin does look less blotchy in places, and is as smooth as glass!

Profile Photo

AWL

from Pennsylvania

Age Group: 70-79

Mature Skin

Verified Purchase

0 people found this helpful

October 29, 2026

Love Obagi C serum

I have been using this serum for more than 7-10 years. I am 80 yrs old and still get compliments on the brightness and youthfulness of my face. It also makes my tinted sunscreen go on very smoothly. I highly recommend it !

Profile Photo

LovelySkin Customer

from Virginia

Age Group: 80+

Wavy, Color treated hair

Combination Skin

Verified Purchase

0 people found this helpful

October 29, 2026

Answer to Dry Skin

It’s the perfect answer for dry skin, especially in winter months. I use it every morning under makeup and my face stays dewy all day. I love this product and stock up when on sale. I was advised by my esthetician to keep it store in the refrigerator to maintain its quality.

Profile Photo

LovelySkin Customer

from Oregon

Age Group: 70-79

Dry Skin

Verified Purchase

0 people found this helpful

October 27, 2026

Obagi vitamin c

Great product, I get complements on my skin

Profile Photo

LovelySkin Customer

from Iowa

Age Group: 70-79

Verified Purchase

0 people found this helpful

October 22, 2026

Game Changer

This is one product everyone needs. I have used it for over ten years and it keeps my skin tone even and wrinkles at bay. I even put a few drops on my hands to keep the brown spots away.

Profile Photo

LovelySkin Customer

from Ohio

Age Group: 50-59

Curly Hair

Combination Skin

Verified Purchase

0 people found this helpful

September 28, 2026

Vitamin C

The only brand of Vitamin C that brightens and doesn’t cause irritation.

Profile Photo

LovelySkin Customer

from Louisiana

Age Group: 60-69

Straight, Dry Hair

Normal Skin

Verified Purchase

0 people found this helpful

September 27, 2026

Obagi Professional C 20%

I’ve been trying several Vitamin C serums over the past few years…I think I’ve found THE ONE!!! This seems to be doing what a vitamin C should do without the irritation…I have sensitive skin and use this daily now for about 3 weeks — a winner imo!!!

Profile Photo

SBaum

from Colorado

Age Group: 60-69

Straight, Color treated hair

Mature Skin

Verified Purchase

1 person found this helpful

September 05, 2026

Simply the best

I love how light this feels on my skin. It leaves my skin looking so fresh and so clean. It’s a must have!

Profile Photo

LovelySkin Customer

Verified Purchase

1 person found this helpful

August 24, 2026

So far so good

Its light and goes a long way. Has not irritated my skin but I haven't noticed a huge difference yet either.

Profile Photo

LovelySkin Customer

from Nebraska

Age Group: 40-49

Combination Skin

Verified Purchase

1 person found this helpful

August 21, 2026

Best vitamin c serum

I have tried several and always come back to the Obagi 20%. You can tell the difference. It costs more but worth it.

Profile Photo

LovelySkin Customer

from California

Age Group: 50-59

Combination Skin

Verified Purchase

1 person found this helpful

August 01, 2026

Good formula

This is my 2nd best fav C serum and a go-to when price is a factor. Obagi definitely nailed one of the top C serums on the market. Feels like it's working from the moment you pat it in.

Profile Photo

LovelySkin Customer

from Georgia

Age Group: 60-69

Straight, Color treated hair

Mature Skin

Verified Purchase

1 person found this helpful

July 30, 2026

It's a must in your daily routine!

A doctor recommended Obagi years ago and I have been using the C serum 20% for years now and am so happy with the results!

Profile Photo

LovelySkin Customer

from Virginia

Age Group: 60-69

Wavy, Color treated hair

Combination Skin

Verified Purchase

3 people found this helpful

July 24, 2026

Vitamin C + great for my mature skin

I'm in the high desert of the Southwest. I use a few drops each morning and evening before moisturizer.

Profile Photo

Bevdog

Age Group: 60-69

Combination Skin

Verified Purchase

2 people found this helpful

June 27, 2026

Cannot Be Without It!

Every time I stray from this product to try something new – typically a high-end new release – I come back to this one. And to be honest, I’m usually nervous while using something else. That’s because this one has been such a reliable, effective, integral part of my routine. I’ve used it daily under sunscreen for about five years now. It absorbs quickly and cleanly. It has a slight green apple scent. The other plus for me with this product is that it does not contain Ferulic Acid, which can trigger rosacea. This is just straight up vitamin C as the acid, which is all that’s needed. It’s one of three products that I credit with keeping my skin in exceptional condition. I seriously get compliments a few times each week.

Profile Photo

SBinLA

from California

Normal Skin

Verified Purchase

4 people found this helpful

June 19, 2026

Great product!

I’ve been using this for about a month now! I love it! I’ve had comments on my skin. It blends in well and layers perfectly under my sunscreen and makeup! I will definitely buy again!

Profile Photo

kmb2382

from Arkansas

Combination Skin

Verified Purchase

3 people found this helpful

June 17, 2026

It’s Working!

I had been buying a lower percentage of Vitamin C and wanted to up my regimen. The first few tries, my skin felt irritated and red but after 2 solid weeks of using it, everything is going perfectly.

Profile Photo

LovelySkin Customer

from Texas

Verified Purchase

5 people found this helpful

May 28, 2026

Great Product

Have used Obagi 20% C-Serum for many years and love it. Keeps my skin even and protected. My skin gets lots of sun (use hat and sun screen always) here in AZ plus I walk several miles a day. This products really helps my skin. People think I am 20 years younger than my age. Using good products (like Obagi 20% C-Serum) keeps my skin in great condition. Would not be without it.

Profile Photo

FunAtHome

from Arizona

Age Group: 70-79

Straight Hair

Mature Skin

Verified Purchase

4 people found this helpful

May 12, 2026

Incomparable

Obagi Pro-C Serum 20% is the only brand of Vitamin C I'll use. I've experimented with others, but nothing compares. I'm constantly asked what I use to make my skin look so great and this is the product that does it.

Profile Photo

Tandy

from Georgia

Verified Purchase

6 people found this helpful


Loading
Return to the top