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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. Within our formulas, Hyaluronic Acid is known to help smooth and plump skin.

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.

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. Within our formulas, Hyaluronic Acid is known to help smooth and plump skin.

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 4.5 out of 5 by 634.
Rated 3 out of 5 by from Average I bought this 2 months ago after receiving a small sample, and have used it every night since. It doesn’t really do much, unfortunately. It does fill in the shallow wrinkles I have on my forehead when I apply the serum at nighttime, but after I wash my face in the morning the wrinkles are back, so the effect is only temporary (I’m only 23 so they’re not age wrinkles, just dehydration wrinkles). I’m quite disappointed with this product, for the price tag I feel like it’s a very average product, which has small and temporary effects. I wish I had bought the Midnight Recovery Oil instead, I won’t be repurchasing this.
Date published: 2019-07-06
Rated 4 out of 5 by from Light, easily absorbed This is a repurchase. I still have some left& the bottle does me roughly 5 months. It feels slightly warm when applying& is easily absorbed. I’m not sure if it has reduced appearance of lines or not but I do get many compliments on my skin so il continue to use
Date published: 2019-06-25
Rated 5 out of 5 by from Defined seen a difference After using many different products in the past with no real effect, I decided to give this product a try. It applies really well and absorbs leaving no residue. Feels nice on my skin and I’ve definitely seen a difference in the few months I’ve been using it. A little bit goes a long way. This product will remain in my daily skin regime.
Date published: 2019-06-23
Rated 1 out of 5 by from Not up to expectactions I was really looking forward to this product after reading so much good reviews. I've been using it for two days -- so I cannot comment at all on the long term effect of the product. There was no immediate effect. The feeling after putting the serum on my face is just bad. It feels like a thick coating layer that doesn't soak in, my skin doesn't feel like my skin but with something on top that is sticky, strong and as if it doesnt let my skin breath. I just have an urge to wash it out. I dont know if it is the silicone which is super high in the ingredient list, or another ingredient, but its not comfortable and I dont think I will continue using it, but search for another vitamin C based serum. Sorry :(
Date published: 2019-06-22
Rated 5 out of 5 by from Life Changing!!! I developed fine lines on my forehead early (around 19-20 yrs old), probably due to my face expressions/drinking a lot in college. I was very insecure about them. About 1.5 years ago, I bought this line-reducing concentrate after much research. The concentrate worked wonders!!! and the bottle lasted awhile. I will now only see faint forehead lines if I'm super dehydrated while talking a lot. (weird observation but I'm very self-aware!)
Date published: 2019-06-17
Rated 5 out of 5 by from Love this I am a 43 year old male with oily skin. This product evens out my skin tone and even cuts the oil. My skin looks great after 2 weeks. I will keep using. I use it twice a day after clensing, then toning, this product, then when it dries a moisturizer.
Date published: 2019-06-13
Rated 5 out of 5 by from So soft Bought this product two weeks ago. Skin is so soft and smooth. Even my husband noticed!
Date published: 2019-06-12
Rated 5 out of 5 by from Instant Glow to the Skin! I have dry to combination skin and have been using this product twice daily for the past three weeks and the difference is astonishing! I use one pump and pair it with the matching eye cream after washing my face, under my serum/oils and moisturiser. After only a few uses the redness in my skin was basically non existent and it has such a glow! It has helped with the fine lines on my forehead and under my eyes too. After three weeks of use I've barely made a dent in the bottle, great value for money; especially with the high Vitamin C content. This product is far superior on quality, price and effectiveness than many high-end brands. This product will be remaining in my daily routine for the foreseeable future!
Date published: 2019-06-11
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Can we u it in any time of the day

Asked by: Nadz
Hi there! This product can be used morning and night, based on personal preference!
Answered by: KiehlsCCC
Date published: 2019-06-25

Not for the eye area?

Can I use this for eye area as well?
Asked by: Bostonmom
Hi there! We do not suggest using using products not intended for the eye in that area as the eye contour is the most sensitive area of skin on our body. For the eye area, we suggest you try our Powerful-Strength Line-Reducing Eye-Brightening Concentrate.Formulated with 10.5% L-Ascorbic Acid, or Pure Vitamin C, this efficacious eye treatment helps brighten and smooth for younger-looking eyes. We hope you can give this a try!
Answered by: KiehlsCCC
Date published: 2019-06-07

I am 29 years old, i don’t have any wrinkles but feel i my skin doesn’t have a glow. Wanted to know whether this product will help with that?

Asked by: Mehreen
Hi there! Thank you for your interest in our Powerful-Strength Line-Reducing Concentrate! This product helps reduce fine lines and wrinkles while improving skin’s texture and radiance. We suggest you try our Turmeric & Cranberry Seed Energizing Radiance Mask. Our exfoliating mask helps invigorate and brighten fatigued, dull skin. Formulated with Cranberry Seeds, this brightening mask leaves skin feeling soft and smooth. Here is a link with more information: http://tinyurl.com/y3976pda. We hope you can give this a try!
Answered by: KiehlsCCC
Date published: 2019-06-07

how long does the 50ml bottle last?

Asked by: Swatcat
Hi there! Thank you for your interest in our Powerful-Strength Line-Reducing Concentrate. With regular use in the morning and at night, the 50mL bottle should last between 1.5-2.5 months.
Answered by: KiehlsCCC
Date published: 2019-04-30

Toner first?

Do I have to use toner first before applying this vitamin c serum? Or should I apply it first thing after washing my face?
Asked by: clearskin
Hi there! Thank you for your inquiry regarding our Powerful-Strength Line-Reducing Concentrate. Following a proper skincare regimen, after cleansing your face you should use toner before applying a serum. A toner helps balance the skins pH, but it is a personal preference. We hope this was helpful!
Answered by: KiehlsCCC
Date published: 2019-03-21
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