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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: $65.00

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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.

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.

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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.

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 598.
Rated 5 out of 5 by from Smells divine! I've been using this for a couple of weeks now and I love it! The smell is lovely just before bed, it absorbs really well and has definitely made my skin brighter. I knew it was making a difference when my husband said that I looked really good one morning having just woken up and been up half the night with the baby. Must be doing something! The only thing I didn't realise was you have to pat it into your skin. I spent a couple of days rubbing it all over my face. The packaging could do with a bit of info on usage.
Date published: 2013-11-25
Rated 5 out of 5 by from Dark spots GONE!! I have oily/ Acne prone skin and this product is the best I've ever used. As a Licensed Master Esthetian, I would recommend this product to anyone having dark spots issues. Been using this since early 2018 and I'm still in love with the results I've seen in just 1 week! Just remember to apply moisturizer (according to your skin type) after apply this product, morning and night. Lastly, always apply SPF 30+ or higher (Mineral/ Physical SPF is best). As for apply this products, a little the size of a pea is enough to cover the entire face.
Date published: 2019-01-14
Rated 4 out of 5 by from Felt the change The first time I used this product I was so happy with it, I suggested it to all my 30+ friends complaining about their skin and bought it as gifts! Now on my third bottle, I am not getting the same benefits I'd felt before. Is this because we've reached a limit as to what can be fixed? Or has Kiehl's changed the formula as suggested by other reviews I've read in astonishment here. My ratings are a bit mixed precisely because of this, I would have rated 5 hearts on all but value (I always feel these products could be a little more affordable). Now, however, I'm not happy with the texture at all -- it's less smooth and more greasy, the performance is dwindling and the effects are not as visibly felt as before.
Date published: 2018-12-19
Rated 3 out of 5 by from It's okay... I have sensitive skin, didn't get a reaction to this product. I feel like this dries way to quick when you put it on your skin. I have been using it for a month, haven't really noticed a difference. Not sure that I would order this again. I'm kind of disappointed.
Date published: 2018-12-19
Rated 1 out of 5 by from Not the same formula I've ordered this product 3 times now. I love it that much! But my last bottle did not performance as good as my other bottles I've purchased in the past, which was about 4-5 years ago. I had a feeling they might've changed their formula and after reading other people's reviews, my suspicions were confirmed true. I would like to purchase again but only if they go back to their old formula.
Date published: 2018-12-06
Rated 5 out of 5 by from Love this product I absolutely love this product. I have been using it for 3 months now. I love what it does to my skin. Less lines and a much brighter complexion. I have had lots of compliments on how great my skin looks, I even go to work with no make up on now. I am still going on the same 50ml bottle. This product will definitely be staying firmly put in my skincare routine for many years to come
Date published: 2018-11-19
Rated 5 out of 5 by from this product changed my skin I highly recommend it because I use it for 1 month and I have already realized important improvements in my face. My skin looks more bright and soft.
Date published: 2018-11-12
Rated 1 out of 5 by from Please bring back the old formula! While this new version is effective, the texture is harsh and grainy. It smells awful and tastes terrible. Since it is used for deep lines, like those often found near nose and mouth, aesthetics matter! Please bring back the old formula!
Date published: 2018-10-30
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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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