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The earlier you add a vitamin C serum to your routine, the longer your complexion will remain youthful and radiant. Obagi Professional-C Serum 20 is a concentrated serum with 20% vitamin C that provides multiple benefits for the complexion. This ingredient neutralizes free radicals that break down collagen and elastin causing damage and leading to fine lines, wrinkles and dark spots. Vitamin C also promotes collagen production which plumps skin and reduces the look of wrinkles. The formula is ideal for normal, combination and oily skin types, and it absorbs quickly without leaving the complexion greasy or oily.
Key Features:
Please note: Due to a raw material change in the formula, the scent of the Obagi Professional-C Serum 20% has changed slightly. The fragrance notes, the fragrance percentage, and the functionality and results remain the same.
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1430 Reviews
LovelySkin Customer
from Colorado
Verified Purchase
This is my favorite C serum. I have been using this product for a few months. I use it before moisturizer. I like the way it softens my skin.
0 people found this helpful
LovelySkin Customer
from Alabama
Age Group: 70-79
Straight Hair
Combination Skin
Verified Purchase
OBAGI PROFESSONIAL 20% IS VERY SMOOTH AND SILKEY. AFTER CLEANING THE FACE AND APPLYING THIS PRODUCT ON YOUR FACE IT IS LIKE A SILK COVERING THAT GIVES YOU THE GLOW THAT IS LASTING AND GET THE COMPLIMENTS THAT IS SO DESERVING OF THIS FINE AND AWESOME SYRIAN. IT A MUST HAVE . IF YOU WANT YOUR SKIN TO LOOK AND FEEL SMOOTH THEN YOU MUST TRY THIS PROFESSIONAL C .
0 people found this helpful
LovelySkin Customer
from Maryland
Age Group: 40-49
Verified Purchase
I love this product. Well worth the money
0 people found this helpful
CharleneM
from South Carolina
Age Group: 70-79
Straight, Color treated hair
Combination Skin
Verified Purchase
I do love this product and have used it for years. I'm 73 and most folks guess that I'm in my early 60's. I use this almost daily. I like that you are offering it in a smaller container, which is perfect for travel. I've used Obagi products for many years now because my dermatologist recommended it. It leaves your skin feeling smooth and brightens over time.
0 people found this helpful
LovelySkin Customer
Verified Purchase
The Obagi Professional-C Serum 20% works wonderfully! Helps with acne scars and really brightens my skin. I have also gifted my mother, who really notices a difference in the clarity and brightness of her skin. I love that Obagi has sales on their amazing products.
0 people found this helpful
KristiJean
from Florida
Age Group: 50-59
Straight, Color treated hair
Combination Skin
Verified Purchase
This vitamin C is one of my favorites. It’s been a part of my skin care ritual now for fifteen years and my skin has reaped the benefits.
0 people found this helpful
LovelySkin Customer
from Nevada
Verified Purchase
I have been using the Obagi Professional-C Serum 20% for a few weeks now. The 20% is higher than the previous C product I used. I am noticing a difference in my skin clarity and a reduction in the fine lines and wrinkles, especially around my mouth and eyes. If I'd known how great this product is, I would have switched a long time ago!
0 people found this helpful
LovelySkin Customer
from Massachusetts
Verified Purchase
I had been using another VitC serum for over 25 years and was gifted by a friend the Obagi Pro-C 20 this past year. To my surprise, this is a really, really super product. I even purchased it instead of my tried and true. Thanks!
2 people found this helpful
Lsmyth
from Wyoming
Age Group: 60-69
Normal Skin
Verified Purchase
I've been using this product for several years now. I am 64 and try to use the best products available. I think this serum is wonderful. I definitely have noticed improvement in my skin over the years. It really helps with fine lines and pours! Highly recommend!
2 people found this helpful
connieb
from Minnesota
Age Group: 70-79
Straight, Color treated hair
Normal Skin
this is my second bottle of this product so that in itself should say something about it, i do like the feel of it and it is nice under my serum and sunscreen
2 people found this helpful
ALAJ
I have been using vitamin C for years and I thought my brand was good until I tried Obagi. This is a game changer. I have had more compliments on my skin then I have ever had.
0 people found this helpful
LovelySkin Customer
from South Carolina
Age Group: 60-69
Mature Skin
Verified Purchase
I have been using Obagi products for over 20 years. The professional C-serum 20% is the absolute best C-serum.
1 person found this helpful
ARGTX
from Texas
Age Group: 40-49
Curly Hair
Combination Skin
Verified Purchase
I’ve been using different brands to test the quality and results of the. The first time I tried this one was about 6 years ago, from there I have been changing or trying others, the ones on trend, cheaper, more expensive, easy to find on Amazon… you named it. But every time I come back to obagi C serum 20%. My skin feels smoother and looks brighter. I don’t know if I’m going to keep testing other brands but for sure I will always come back to obagi.
0 people found this helpful
DPL
from Pennsylvania
Age Group: 50-59
Wavy Hair
Dry Skin
Verified Purchase
I e been using this serum for a couple years and wish I started sooner. It keeps my skin more protected from the sun and I feel like my complexion is brighter from This product .
1 person found this helpful
LovelySkin Customer
from Georgia
Verified Purchase
This serum brightens my skin and improves texture. My skin is glowing. I absolutely love the serum would highly recommend it.
0 people found this helpful
LovelySkin Customer
Age Group: 40-49
Combination Skin
Verified Purchase
Constantly go back to this Vitamin C
0 people found this helpful
CLynn
from California
Age Group: 40-49
Straight hair, Damage & split ends
Normal Skin
Verified Purchase
I’ve been using this product for at least 10 years. It’s the absolute best product!! Makes your skin look and feel amazing- i will not be without it, i always have a full bottle stocked in my drawer. I get a ton of compliments on my skin and give the credit to this product- i have a lot of people thank me for recommending this amazing stuff to them! Get it!!
0 people found this helpful
AnnainMD
from Maryland
Age Group: 50-59
Straight Hair
Combination Skin
Verified Purchase
Within 3 days I had breakouts all over my face and I do not normally have breakouts. Texture of the serum was oily, which I was not expecting. Relegated it to my neck, décolleté, back of neck and forearms to use it up. Took a couple of weeks for my face to recover. Also, it was perfumed. Very pricey for such a result, NOT a fan.
0 people found this helpful
Jude03
Verified Purchase
This product gives my skin a healthy glow. I use it every morning.
0 people found this helpful
LovelySkin Customer
from Illinois
Verified Purchase
I've been using the Obaji serum for about two years and have noticed a difference in evening out my skin tone. It's very easy to order from Lovely Skin and the orders come promptly and in excellent condition.
0 people found this helpful
Free $14 SkinMedica Travel-Size Firm & Tone Body Lotion! 
