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Powerful-Strength Line-Reducing Concentrate

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

Powerful-Strength Line-Reducing Concentrate

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

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Total: $22.00 - $104.00

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Product details

Now formulated with even more Vitamin C, Dermatologist Solutions™ Powerful-Strength Line-Reducing Concentrate is infused with 10.5% L-Ascorbic Acid and 2% Ascorbyl Glucoside along with Hyaluronic Acid. Our new and improved formula helps reduce fine lines and wrinkles while improving skin’s texture and radiance.

  • Visibly reduces the appearance of fine lines and wrinkles, boosts skin radiance and improves texture
  • Helps visibly minimize pores over time for smoother skin
  • Formulated with a powerful 10.5% L-Ascorbic Acid, 2% Ascorbyl Glucoside along with Hyaluronic Acid
  • Demonstrated in a clinical study to decrease the appearance of fine lines and wrinkles and visibly improve skin radiance and texture
  • Demonstrated in a clinical study to decrease the appearance of deep-set wrinkles, forehead wrinkles and marionette lines after 4 weeks
  • Dermatologist-tested for safety
  • Carefully-formulated for all skin types, even sensitive skin
  • A customer favorite

*Results from an 8-week clinical study.

Key Ingredients
Vitamin C

Pure Vitamin C

L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.

Vitamin C Glucoside

Vitamin Cg

Vitamin Cg, or Ascorbyl Glucoside, is a Vitamin C derivative. With antioxidant benefits, this form of Vitamin C is known to help boost radiance and smooth skin texture.

Fragmented Hyaluronic Acid

Fragmented Hyaluronic Acid

Hyaluronic Acid acts like a sponge to draw moisture into skin’s surface layers and then expands as it absorbs. Hyaluronic Acid is known to help smooth and plump skin and is commonly used in products formulated to help reduce the appearance of facial lines and refine texture.

See Full List
Print

Now formulated with even more Vitamin C, Dermatologist Solutions™ Powerful-Strength Line-Reducing Concentrate is infused with 10.5% L-Ascorbic Acid and 2% Ascorbyl Glucoside along with Hyaluronic Acid. Our new and improved formula helps reduce fine lines and wrinkles while improving skin’s texture and radiance.

  • Visibly reduces the appearance of fine lines and wrinkles, boosts skin radiance and improves texture
  • Helps visibly minimize pores over time for smoother skin
  • Formulated with a powerful 10.5% L-Ascorbic Acid, 2% Ascorbyl Glucoside along with Hyaluronic Acid
  • Demonstrated in a clinical study to decrease the appearance of fine lines and wrinkles and visibly improve skin radiance and texture
  • Demonstrated in a clinical study to decrease the appearance of deep-set wrinkles, forehead wrinkles and marionette lines after 4 weeks
  • Dermatologist-tested for safety
  • Carefully-formulated for all skin types, even sensitive skin
  • A customer favorite

*Results from an 8-week clinical study.

Print
Vitamin C

Pure Vitamin C

L-Ascorbic Acid, also known as Pure Vitamin C, is a highly efficacious antioxidant known for its ability to improve the appearance of aging skin. In addition to antioxidant protection, Pure Vitamin C is known to help boost radiance, improve texture and visibly reduce the appearance of lines, wrinkles and other signs of aging.

Vitamin C Glucoside

Vitamin Cg

Vitamin Cg, or Ascorbyl Glucoside, is a Vitamin C derivative. With antioxidant benefits, this form of Vitamin C is known to help boost radiance and smooth skin texture.

Fragmented Hyaluronic Acid

Fragmented Hyaluronic Acid

Hyaluronic Acid acts like a sponge to draw moisture into skin’s surface layers and then expands as it absorbs. Hyaluronic Acid is known to help smooth and plump skin and is commonly used in products formulated to help reduce the appearance of facial lines and refine texture.

See Full List

how to apply

How to apply
  • STEP 1: Cleanse skin thoroughly prior to application
  • STEP 2: Apply Vitamin C serum over entire face, avoiding the eye area
  • STEP 3: As the formula blends into skin, you may experience
    a feeling of warmth
  • TIP: Can be used twice a day, morning and night
  • Explore our other Vitamin C skincare products like Kiehl’s Powerful-Strength Line-Reducing Eye Brightening Concentrate

results

After

After

Before

Before

IMMEDIATELY: Visibly Improved Skin Texture and Boosted Radiance

IN 2 WEEKS: Reduced Lines and Wrinkles

IN 4 WEEKS: Visibly Reduced Deep-Set Wrinkles

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

Immediate Week 2 Week 4 Week 8
Radiance checked checked checked checked
Decreased Facial Lines checked checked checked checked
Skin Texture checked checked checked checked
Decreased Deep-Set Wrinkles checked checked
Decreased Lip Lines checked checked
Improved Firmness checked
Visibly Reduced Pores checked
The Truth About Vitamin C Skin Care

The Truth About
Vitamin C Skin Care

learn more

HERITAGE HIGHLIGHT

HERITAGE HIGHLIGHT

Kiehl’s chemists stabilized 10.5% Pure Vitamin C in a water-free formula more than 13 years ago and became pioneers in Vitamin C skincare products. Now, our formula includes 12.5% Vitamin C and Hyaluronic Acid.

Powerful-Strength Line-Reducing Concentrate is rated 4.6 out of 5 by 404.
Rated 5 out of 5 by from My all time favorite serum in the world :-) I've been using this serum for many months now and I am in love with it. Generally, I take care of my skin very well but ever since I started using this particular serum, I noticed considerable changes on my face. It makes my face hydrated and at times I notice a glow. Love the texture and smell. Definitely erased fine lines on my forehead and around my lips after a continuous use of this serum. Kudos Kiehls!! :-)))
Date published: 2018-10-03
Rated 1 out of 5 by from Old formula was amazing - new one does not work!! The old formula had a very visible and stunning effect on mine and many others' skin. However, the new formula does not work at all. It doesn't even have the tell-tale 'warming sensation' of the old formula! Something's not right with this new one. This one with the hyaluronic acid is slightly more moisturizing, but the radiance effects and the line reducer does not work. I compared and found the last package of the old formula and it works wonder. This new one is horrible! Please give us a choice of the two, maybe one more moisturizing this new one, or the previous one. We want the old one back!! Will have to go searching for a new product as this one simply doesn't work since you changed it. Now can no longer trust this company to keep the good products around. I have 2 friends that also purchased within weeks of my purchase and they also had no choice but to use this one since they couldn't find the old one anymore, but they too noticed ZERO difference on their skin. This was my holy grail go-to product and now I can't use.
Date published: 2018-10-03
Rated 1 out of 5 by from Old formula was much better I wish you would bring back old formula, keep this one if you want, but give us the choice. I, like many other reviewers here, saw results with the old formula but not this one. The new texture is also sub par. The old texture was velvety and left a nice surface for make up. The new texture is sticky and thicker. I had just found the old formula and only had a sample size to enjoy and it was enough to see results. I went in to buy a bottle but it had been discontinued so I tried new formula. I've been using it for over two months and not even the slightest difference. Looks like my search for a good Vit C is back on :(
Date published: 2018-09-30
Rated 5 out of 5 by from Can't Live Without! I have been using this serum for a few years now, starting with the old formula (10% vitamin c) and then swtiching to the new formula (12.5% vitamin c) when it came out last summer. When i started using this product I was approaching my mid 20s and had problems with acne, the start of forehead wrinkles and a general dulling of my skin that was the result of many sleepless party nights in my teens and early 20s finally catching up with me. This product has drastically changed my skin and it has continued to improve over time. My skin is now smooth, plump and radiant. Any wrinkles I thought were starting to form are now long gone. I rarely ever breakout and have completely stopped using foundation. I am constantly getting compliments on how beautiful my skin looks, when little do they know just a few years ago my skin was a dull acne ridden disaster. This is my number one must have product that I can't live without. I use daily morning and night with the rosa aratica eye cream under either a day time moisturizer with spf or a night cream/kiehls ultra facial cream at night. The product may seem pricey but each bottle lasts a few months and the results are definitely worth it. Highly highly recommend!!
Date published: 2018-09-07
Rated 5 out of 5 by from My favorite! I started using this serum a little over two years ago–I've always loved it! I've been looking for other alternatives, though, but haven't had any luck. I like to try out different products just to see if I can find something more effective and/or that offers better value–but I always come back to this one. I love the texture and how it makes my skin feel and look after application!
Date published: 2018-08-19
Rated 2 out of 5 by from Bring Back the OLD Formula I have been a faithful user of this Serum for many years. When my old bottle (10% VitC ) ran out I went to my local Kiehls dispensary to restock. I felt the new 12% on my hand and it does feel nice.I went ahead and gave it a shot. Well after 6 weeks of 0 results. I finally returned it last night. Why did they reformulate? It was probably cheaper to make this one than the old version. But do not be fooled this new one has silicone way up on the ingredients list . I still have my old box so I noticed a significant change in the ingredients list from the prior formula. The only good thing I can say is it didn't break me out which usually happens when brands reformulate products on me. Do not waste your money. Kiehls is slowly becoming so much less special than it once was.
Date published: 2018-08-17
Rated 5 out of 5 by from The best so far I have always used kiehls products but this is a first trying anything for wrinkles/lines. I love this stuff! It took me weeks of deciding which Kiehls face product I wanted to try, reading reviews mostly. So glad I went with this one! Love the texture & the way it makes my skin feel. Saw results almost instantly & I have some pretty heavy lines in my forehead. I also got some really cool samples which is how I also pick what to purchase, the samples are smart because I always end up buying one of them. My lip balm tube was pretty much empty though which is really weird, couldn’t squeeze anything out.
Date published: 2018-07-24
Rated 5 out of 5 by from Worth it I read some of the negative reviews and realize we are all different; ages, ethnic, life style, etc.....but this serum works for this former beach bum who is now in her 6o’s. Love it and will use it for years to come.
Date published: 2018-07-22
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Can you please advice me when you go back to original formula?

Your original was top notch. I would see almost immediate results,which was amazing. I do not know why companies always have to mess up a good thing. With the negative comments I have been reading & hearing lately, I will not be purchasing any time soon. You lost here a long time customer.
Asked by: imqt

Serum texture

Just wondering what I am supposed to expect as far as the texture of this serum. I just got this one in the tube and have been using it for about 4 nights. Every time I apply it, the texture has a slight grittiness to it. I am just not used to serums having any texture other than silky. If this serum truly does has a slight grit or exfoliating property then I really just wanted to make sure I don’t have a defective product.
Asked by: Annieiiy

I bought this two years ago and my girlfiend is using it i dont see an expiration date, should there be one?

Please advise expiration date
Asked by: Rubadub

Can I apply my cilantro mask OR midnight recovery after applying this product?

Asked by: DeniseFerreira

Which moisturizer does this work with?

I have combination “mature” skin.
Asked by: BonnieA
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