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Powerful-Strength Vitamin C Serum

All Skin Types, including Sensitive Skin

A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.

Powerful-Strength Vitamin C Serum is rated 4.4 out of 5 by 518.
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Powerful-Strength Vitamin C Serum

Powerful-Strength Vitamin C Serum

A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid.

or 4 installments of $17.50 by Afterpay Learn more
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How to Use Our Vitamin C Serum

  • Cleanse and tone skin thoroughly prior to application of vitamin C face serum for day and night
  • As it blends into skin, you may experience a feeling of warmth as the formula activates
  • Follow with your favorite moisturizer and SPF in the day time
  • Avoid the eye area; in case of contact with eyes, rinse them immediately
  • Discover our other anti-aging formulas like our anti-aging face and neck cream, moisturizing facial oil, and our dark circle eye cream.

What It Is

An antioxidant-rich Vitamin C serum that instantly boosts radiance, helps firm skin and visibly diminishes fine lines, wrinkles and pores for smoother-looking skin. Formulated with 10.5% L-Ascorbic Acid and 2% Ascorbyl Glucoside plus Hyaluronic Acid, this patented, water-free, stabilized Vitamin C concentrate is a Kiehl’s customer favorite for glowing skin.

Paraben-free, alcohol-free, mineral oil-free, and dye-free.

What It’s Good For

  • Instantly boosts radiance
  • Helps visibly reduce lines and wrinkles in just 2 weeks, while helping firm skin over time
  • Smoothes skin’s texture and helps visibly minimize the appearance of enlarged pores
  • Stabilized Vitamin C penetrates skin’s deeper surface layers and remains effective in skin for up to 6 days
  • Dermatologist-tested for safety
  • Made with recyclable packaging

Key Ingredients

Did You Know?

Kiehl’s History with Vitamin C Serums

Did You Know?
Kiehl’s became pioneers in Vitamin C skincare when we first stabilized Vitamin C in our efficacious, water-free concentrate. Our patented Vitamin C serum is highly stable ensuring that our formula is concentrated with an efficacious amount of Vitamin C while still being suitable for sensitive skin. Within our hyaluronic acid and vitamin C formula, our Vitamin C penetrates skin’s deeper surface layers—up to 10 layers deep!

Our Vitamin C Serum Results

Before and after

How quickly can I expect to see results from Kiehl’s Vitamin C Face Serum?

  • Immediately: Vitamin C Serum Visibly Improves Skin Texture and Boosts Radiance

  • In 2 weeks: Vitamin C Serum Reduces Lines and Wrinkles

  • In 4 weeks: Vitamin C Serum Visibly Reduces Deep-Set Wrinkles


*Results from an 8-week clinical study. Photos not retouched. Individual results may vary.


Frequently Asked Questions

Answers to Your Frequently Asked Questions

Future Made Better

Future Made Better

True to our founding family’s mission, we strive to improve the quality of the communities we serve by reducing our
environmental impact, formulating responsibly, and supporting charitable causes. This formula is made with:
Responsible Formulation
Responsible Formulation
Commitment to Recycling
Commitment to Recycling

Complete Your Routine

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Rated 5 out of 5 by from It really works! I don't often write reviews, but felt compelled to write this one after using the Kiehl's Vitamin C Serum for 6 months. I have seen serious improvements in the fine lines on my forehead and the vertical lines in between my eye brows. Honestly, it smoothed out the ones between my eyebrows and for that reason I am hooked! It really worked for me so if you are on the fence I would recommend giving it a try. The bottle lasts pretty long. I use one pump of serum nightly and the bottle has lasted me more than 6 m already.
Date published: 2020-10-17
Rated 5 out of 5 by from 2 for one! This product is a must have in your skincare routine! I initially purchased the smallest bottle to try, then I upgraded to the larger size when I was out. I have never found a product with such a high percentage of vitamin C, plus this formula includes hydraulic acid to seal in moisture so you're really getting 2 products in one! Your skin feels amazing right after you put on and really boosts brightness.
Date published: 2020-09-21
Rated 5 out of 5 by from Promising Vitamin C serum! Good for your skin! Once you use it you will feel the serum reacting to your skin, there will be a little heat but it will subside after few seconds. It’s easy to put on and the serum is rich. It smells ascorbic acid as well or citrusy. Love this product!
Date published: 2020-09-21
Rated 4 out of 5 by from Amazing! I purchased this two years ago while on a work trip. There was a Kiehls store nearby and so I made a stop to see about purchasing this product I read so much about. I hated it! It didn’t seem to be working for me so I ended up giving it away to my mother when she came to visit. Fast forward to today, I’m quarantined at my parents house, misplaced another serum I was using to fade dark marks and decided to retry this serum which was just sitting in my parents bathroom vanity. Y’all, it’s amazing! It fades the dark marks I get on my chin so quickly! Nothing else has been able to do that. Anyway, I find the whole thing funny and just wanted to let everyone know about my results even though for whatever reason it didn’t seem to work in the past. Great product.
Date published: 2020-09-21
Rated 5 out of 5 by from Great product I’ve been using this product for years, and it really worked.
Date published: 2020-09-06
Rated 1 out of 5 by from Do NOT BUY ONLINE I bought the large size of this product this last May for a Mother’s Day sale and I am STILL waiting. I’ve called multiple times for them to send out the product. I’ve been patient a cool about it. Every person said they would send it out, they said it was in stock but then nothing would happen, no emails, no tracking numbers, no call backs. BUT IN STORES ONLY. Which is soooo sad because we’re in a pandemic, buying online should be reliable. Especially from a company like Kiehls their online service is COMPLETELY unreliable. It was my first online purchase with Kiehls and I will never do it again. This product is way too expensive to not get the product you want, especially when you buy the BIG size like I did.
Date published: 2020-08-31
Rated 1 out of 5 by from Thick and Goopy I always use a serum and was anxious to use this one based on what it is purports to do. When I think of a serum I think of a luxurious feeling oil or liquid that goes on smoothly and penetrates my skin feeling deeply moisturizing and comforting. This is none of those things. It is a very thick, goopy cream that doesn't feel at all moisturizing and doesn't seem to soak in. It is also so thick that I have to drag it across my skin which is not the least bit luxurious or comforting. I don't ever find that any skin products make that much difference in the inevitable aging of my skin, so I want what I use to at least feel good. I don't find that anything about this product feels good on my skin. I wish they would change the formula so this serum goes on smoothly and soaks into the skin.
Date published: 2020-08-29
Rated 5 out of 5 by from I love this product! I have been using PSVCS for well over a year and many mornings after I wash my face it is my only "go to" (along with some sun screen) before I hurry outside. I am 70 years old and have been told my skin looks great. I know it is specifically for fine lines but I use it sparingly all over my face and the way it feels and absorbs. Thank you, Kiehls!
Date published: 2020-08-21
Rated 5 out of 5 by from Feels great, satin finish I bought this a month or so ago and have been using it every AM/PM under my PCV Copper creams. I love the satin finish and feel like it has done a great job keeping my skin moistured.
Date published: 2020-08-13
Rated 1 out of 5 by from No improvement I have been using this serum on daily basis for about an year, I don’t see any difference in my forehead fine lines.
Date published: 2020-07-31
Rated 5 out of 5 by from Amazing Been using since 12/2019, within weeks saw a difference. Just turned 34, experiencing fine lines and texture imperfections. This worked wonders. I know it's suggested NOT to apply near eyes, however my eye lid skin texture has enough, meaning fine lines that gave a "rough" appearance. However applying small amounts of this has fixed that issue.
Date published: 2020-07-09
Rated 4 out of 5 by from Delivers the Goods as Advertised Bought this during the BOGO special. I stored the 2nd bottle in the fridge. I do like this product. It goes on smoothly and is not greasy. I do see some improvement in my overall skin appearance. Without tether special, I would find this pricey. I will have to stock up during sales.
Date published: 2020-07-06
Rated 4 out of 5 by from Caution I like the facial effect of this serum, and a small amount goes a long way. I have very sensitive skin and found this to be too strong for use on my neck. I developed a burn-like rash after trying it on my neck. No problem using it on just my face.
Date published: 2020-07-02
Rated 3 out of 5 by from Not a miracle I purchased this product during a 40% off sale. I was so excited. The ratings and reviews had been glowing on this product. I received it on 05/15/20 and began to use it immediately. I've been using it every night since, for a little over 6 weeks now. I have not noticed a difference in my skin. There is a nice chart in the product description/results, and my skin has not experienced any of the results. I will continue to use it, but as of now I think it's just a bit of an overpriced moisturizer and not anything special.
Date published: 2020-07-01
Rated 5 out of 5 by from My face looks smoother than ever I have struggled with acne and large pores for my whole life. I have never had smoother looking skin since using this product. I don’t know what kind of magic is in this bottle, but I am never going back. I still get occasional pimples, but my overall skin texture looks so much smoother, my pores look smaller, and my scarring has decreased a ton. I love the results.
Date published: 2020-07-01
Rated 5 out of 5 by from Great Product! Reduces the magnitude and appearance of small superficial blemishes. Certainly it has yielded an improved appearance of my facial skin texture and also produces a brightening/healthy look. Very easy to apply, nonirritating, and does not impart a greasy feeling. This is an excellent product which I have used for years and it continues to offer pleasing/beneficial results.
Date published: 2020-06-08
Rated 5 out of 5 by from great features It's really a great deal that buy one get one free. And I use it daliy, and keep a few to use in the future.
Date published: 2020-05-24
Rated 5 out of 5 by from Visible difference right away Ive been using a free sample for about a week now. Since the very first night there was a visible difference in my dark/tired under eyes! After just one week my face looks a lot brighter as a whole because of it! I don’t even feel the need to wear as much concealer, such a nice feeling! I will be purchasing and I highly recommend.
Date published: 2020-05-22
Rated 5 out of 5 by from Instant results! I'm 30 years old, I don't have fine lines or wrinkles yet, but I purchased this product to help refine my pores and rejuvenate my skin. I apply it only in the morning (I use the Midnight Recovery Oil at night and don't want to pack my skin with layers of products) and have used it for only a week, and I've already noticed a HUGE difference! The product is doing exactly what I hoped for. My pores are more refined, and my skin looks so much healthier and youthful! My skin doesn't look dull anymore, but looks refreshed everytime I look in the mirror. I LOVE this product and will continue to use it in my daily routine!
Date published: 2020-05-19
Rated 1 out of 5 by from Bad Batch? I have been using the Powerful-Strength Line-Reducing Concentrate for a few years and usually love the product. Bought a new bottle at the end of February and the serum has already oxidized with only a quarter of the bottle being used and kept away from direct sun and heat in my bedroom. This is the first time the product will not absorb into my skin and pills with layering moisturizers no matter what cleanser, toner or scrub combination I use. Highly disappointed and hoping this is a one off bad batch/bottle.
Date published: 2020-04-12
Rated 2 out of 5 by from Penetrated my wallet not my skin This was very topical in the sense that I didn’t find that it soaked into the layers of my skin whatsoever. It was very mask like and so that’s the way I chose to apply it at night as a sleeping mask. In the morning, my skin was left uneven, patchy and a tad dry. I think this is because of the (lack of) stability of vitamin C in general and not necessarily the formulation. Overall I didn’t find the product to brighten my skin and I won’t repurchase or recommend.
Date published: 2020-04-11
Rated 4 out of 5 by from Amazing one of my favorite vitamin C serum. non comedon and not make my skin yellow)
Date published: 2020-03-27
Rated 5 out of 5 by from Absolutely amazing I rarely write reviews but I have never experienced such a difference with a beauty product. I didn't have too many skin issues to start with. I'd say my skin is "normal", although it can look dull and tired. I've also got some post pregnancy spots and uneven skintone. I've been using this for about two months and I'm thrilled with the results. My skin is even in tone, my pores are minimized, and I've got this incredible youthful glow!! I couldn't be happier! Highly recommend this product and I'm looking forward to using it for many years to come.
Date published: 2020-03-23
Rated 4 out of 5 by from Seems to work I replenished this after using a sample I felt was working for my deeper can sometimes feel greasy but if you get the amount right for your skin it’s smooth and works in nicely to your skin. Note: I decided to buy this because Kiehl’s kept pestering me to use my rewards points - which I know exist. But when I log in to my account I get a blank screen while looking for “my rewards”...and can not access this “expiring” coupon. Why?
Date published: 2020-03-16
Rated 5 out of 5 by from Love this one SO much I have normal skin without any particular problems. I just want something to keep my skin as nice as it is. This product did more then that. I saw visual improvement in my skin. My skin jot brighter and smoother. It felt weird the first time I applied it on the skin because it warms right away. You get used to it. One pump goes a long way. Would definitely recommend this.
Date published: 2020-03-15
Rated 5 out of 5 by from Amazing!! After using it for 12 days, yesterday, I received a comment from someone surprised by how good my skin looked! It's really amazing how effective it is. My question is: How long can it be used? After eight weeks of treatment, can you continue or is it advisable to rest for a while?
Date published: 2020-03-04
Rated 3 out of 5 by from Formula changed I bought my first bottle a few months ago. LOVED it. Within a couple days my face looked better. Moisturized, better texture. THEN I bought a 2nd bottle. The color was different (white, 1st bottle yellow) and it smelled different and felt different on my skin. Returned to store for exchange. Same thing with a new bottle. Just ordered 3rd bottle direct from Kiehl's so will see how this is. Very expensive but was willing to use as I loved results. Not so much anymore.
Date published: 2020-02-29
Rated 3 out of 5 by from No Improvement in fine lines I have fine lines in forehead. I use this serum after toner every morning. It’s been an year and not a bit of improvement in the fine lines. I am very disappointed that it’s working for many people and not for me.
Date published: 2020-02-07
Rated 2 out of 5 by from no visible effects I purchased this at the recommendation of a Kiehls employee who said I should consider it for help managing fine lines and large pores. I've used it with the other Kiehl's products in my normal regimen (ultra facial cleanser and ultra facial moisturizer for oily skin) for the last six weeks and have not seen any impact of using this product.
Date published: 2020-02-06
Rated 1 out of 5 by from Weird!!! I have to join the slew of bad reviews of this product. I bought this serum after receiving a sample. It seemed good but then I noticed my hands smelling really bad. It wouldn't wash off and it lasted for days. The smell was of metal. I went to the doctor. They ran tests and said it has to be something topical. I never in a million years thought it would be this serum. Once I discontinued the use my hands stopped smelling. I started again two weeks later and the smell returned. I know it sounds funny but as I was sitting in my office I could smell my hands and it was driving me nuts!
Date published: 2020-01-28
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This product evens out my skin tone and even cuts the oil. My skin looks great after 2 weeks. —Eric717,
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