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 471.
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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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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.

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

Key Ingredients in Our Vitamin C Serum

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.
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 Serum?

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

  • In 2 weeks: Hyaluronic acid and Vitamin C serum Reduces Lines and Wrinkles

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


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



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
Commitment to Recycling

Complete Your Routine

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Frequently Asked Questions

Answers to Your Frequently Asked Questions

This product evens out my skin tone and even cuts the oil. My skin looks great after 2 weeks. —Eric717, kiehls.com
Rated 5 out of 5 by from No more turkey neck I am a 52 year old woman and was starting to get serious lines and sagging in/on my neck area. I went into the Kiehls store to inquire what product they had that would help with this problem. The guy that assisted me recommended this product and I have been using it for about a year now. After the first month or less I noticed an improvement. I no longer have lines or sagging in my neck area and I love this product! I'm not sure if it was originally made for "turkey neck" but it sure helps. I would recommend this product to anyone that is just starting to sag in the neck area. Not sure how it will work if you are already seriously there.
Date published: 2015-03-05
Rated 5 out of 5 by from Impressed!! I heard good things about Kiehl's products so I gave this serum a try based on raving reviews, albeit with some hesitation. I've spent a lot of money on some high-end products before but never really SAW results. This product, however, I saw a difference after one application! And then another, then another. My skin tone evened out. My pores seemed to minimize and the skin looked noticeably SOFT. Oh, and the lines (forehead, eyes) have become softer as well. I am so excited!! This product just made me a huge Kiehl's fan and I just ordered more products to see what kind of magic other Kiehl's products can make happen.
Date published: 2010-11-11
Rated 5 out of 5 by from Try it! I'm very excited about this product. Over the last several years I have tried numerous creams and serums, some much more expensive, some less. Many did nothing for my skin, some worked for short periods. But this product has both hydrated my skin and reduced the appearance of lines on my face more than any of the products I've tried. I use it at night with the Midnight Recovery cream followed the Rosa Arctica moisturizer. When I wake up in the morning my skin is softer and looks clearer. Over the course of a week or two the lines around my forehead and mouth have diminished . Even my 20 year old daughter said I'm looking younger.
Date published: 2014-02-19
Rated 5 out of 5 by from IMO Kiehl's Greatest Skincare Product! Hands down my personal favorite Kiehl's product! It's silky texture glides across skin, penetrates quickly, immediately erases signs of fatigue, heals past acne scaring, and overall has made the texture and tone of my skin improve drastically! I use 2 pumps (face & neck) under my moisturizer every day and LOVE the results! At last, Vitamin C that doesn't sting or irritate oily, acne-prone & sensitive skin! Also, the fine lines around my eyes and mouth have begun to vanish after only a month of continued use, and the deeper lines on forehead have softened...if you have a chance to sample it, take it! You'll be hooked!
Date published: 2010-10-14
Rated 5 out of 5 by from Can't Live Without It ... Number 1 Disciple I can't say enough about the Powerful-Strength Line-Reducing Concentrate. In fact, there aren't enough superlatives for it. But in the end the only thing that is important to know is that this product works. It does amazing things and I credit it as the thing that makes me look younger than my three younger siblings. I have found that it sometimes tingles when I apply it but not always. The larger bottle will last at least six months (full disclosure, I only use this in the mornings ... I have other Kiehl's products for the evening), so it is worth every penny. For my best girlfriends, this is my go-to gift ... in the end, they always repurchase.
Date published: 2012-09-13
Rated 4 out of 5 by from Great Serum PSLRC is an awesome serum. I've been using it for a little over 3 months now. I can't honestly say that it's made that much of a difference in reducing fine lines, etc., but my skin is definitely more radiant after application, especially if applied after any sort of microdermoblasion. I don't want to sound uncouth, but the texture - at least in the bottle I received - dangerously resembles curdled milk -- kind of non homogenous in appearance. In any case, it feels velvety, absorbs quickly, and doesn't smell. The best part about using this serum is how healthy your skin feels. It's great. would totally recommend.
Date published: 2016-12-30
Rated 5 out of 5 by from This is a great product with a terrible pump dispenser Line-Reducing Concentrate does just that... I am 48 and have small lines on forehead, crows feet, and around my lips (even though I NEVER smoked)... since I started using this product a few months ago I definitely see improvement in all of these areas. My only complaint is the pump dispenser on the bottle stopped working after only a few days. My first bottle, I struggled through it... my second bottle I returned... my third bottle, I'm struggling again... I read another reviewer who said she removed the dispenser and poured the product out of the bottle... I think that is a mistake as air getting to the active ingredients could render them useless. I hope Kiehl's remedies this situation soon.
Date published: 2011-07-13
Rated 5 out of 5 by from Accused of getting a facial after two applications. I added this item to my Kiehl's routine last night and this morning my flawless and gorgeous coworker asked me if I got a facial. She said, "I don't want this to sound like a back-handed compliment, but your skin looks so much better. It looks dewy." She said my skin looks dewy. I was concerned with purchasing a $60 product without having sampled it first but the results are in. I also use the Midnight Recovery, Ultra Facial Oil-Free Cleanser and Moisturizer. I also recently started using the Facial Fuel scrub. (also a prime product to have in your regimen.) I found the perfect cocktail for my combination skin with an oily T-zone. I like this stuff so much I sound like a commercial.
Date published: 2015-03-27
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