Powerful-Strength Line-Reducing Concentrate

4.4 (2,031)
$89.25
$105.00
Sale ends 2/22/26
Size:2.5 oz.
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Product Details

Web ID: 2755076

What It Is

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

  • What It's For

    All skin types, especially sensitive skin.

  • What It Does

    Kiehl's original Vitamin C serum is now formulated with even more Vitamin C. In addition to 10.5% L-Ascorbic Acid, this formula is infused with 2% Vitamin Cg and fragmented Hyaluronic Acid. Visibly reduce wrinkles and fine lines and boost radiance with this potent serum. Powerful-Strength Line-Reducing Concentrate is dermatologist-tested for safety and gentle enough for sensitive skin.

  • Key Ingredients

    - 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: Hyaluronic Acid acts like a sponge to draw moisture into skin's surface layers and then expands as it absorbs. Within this formula, Hyaluronic Acid is known to help smooth and plump skin.

  • How To Use It

    Apply to clean skin. Can be worn alone, after a moisturizer or before foundation.

  • Shipping & Returns

    • Our Normal Gift Boxing is not available for these items.
    • California and Minnesota customers call 1-800-777-0000 for Free Shipping information.
    You have 30 days to return most Bloomingdale's purchases. The Final Offer items are Final Sale and cannot be returned. For complete details, see our Shipping and Returns policies.

Ratings & Reviews

Here's what customers think
  • The serum effectively improves skin texture, reduces the appearance of fine lines and wrinkles, and provides a brighter, more radiant complexion.
  • Many users report noticeable improvements within a few weeks, including reduced dark spots, more even skin tone, and a smoother, more youthful appearance.
  • The serum has a luxurious, silky texture that absorbs easily without leaving a greasy or sticky residue.
  • While some experienced initial sensitivity, most found the product to be gentle and non-irritating, even for sensitive skin types.
  • The high concentration of vitamin C is cited as a key factor in the serum's efficacy, helping to combat signs of aging and environmental damage.
AI-generated summary from 2,031 customers reviews.
4.4/5

2,031 star ratings & reviews

Write a review
71.4% of reviews have 5 stars
1450
14.3% of reviews have 4 stars
290
5.1% of reviews have 3 stars
104
3.1% of reviews have 2 stars
62
6.2% of reviews have 1 star
125

72 customer images

2,031 reviews
Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 2.5 oz. This review is from Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 2.5 oz.
Katko
14 days ago

Different texture

I have used this product for years but my latest bottle is different. It feels rough to my skin like an exfoliated.. Not the same. Will try something new.

Customer review from kiehls.com

Faith73
22 days ago
from Georgia

Atrocious

I think they pay for reviews and remove negative ones. This product is terrible. I used it for two days. Two days. On the third day I woke up and my under eyes were extremely puffy, red and wrinkly and irritated. I was so horrified. The way it looked scared me so bad I’ve never felt so terrified for my health and appearance before. There are multiple reviews like mine. This product needs to be removed from the shelves.

Customer review from kiehls.com

Response from kiehls.com

Consumer Care Center10 days ago

Hi there! We are sorry to hear that you had this kind of reaction to our Powerful-Strength Vitamin C Serum. We would like to speak to you further about this, please call us toll-free at 1-800-543-4572 (available Mon - Sun 10am-7pm EST) provide case number 45050441.

karosa_9395
23 days ago

For bright looking skin use this serum

This serum is game changer for me. It brightens skin tone from dull to young look. It also reduces black spots from sun damage skin as well as reduces wrinkles.

Customer review from influenster.com

Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 2.5 oz. This review is from Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 2.5 oz.
clema_3583
23 days ago

Probably the best vitamin C serum

It was good for my sensitive skin. Unlike many other vitamin C serums, it wasn't sticky and absorbed so easily. It's really hydrating and moistorizing, I liked it. It may not be big enough in the standard size, but I was happy overall.

Customer review from influenster.com

Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 2.5 oz. This review is from Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 2.5 oz.
annak1101_7693
23 days ago

A potent vitamin C serum that brightens and revita

Absorbs quickly and one bottle lasts several weeks with daily use.Brightens skin tone and improves radiance over time. Great choice for dull skin and antioxidant boost. Some users may experience mild tingling but not lasting redness. Generally well-tolerated; rare irritation for sensitive skin.

Customer review from influenster.com

Alleycatwoman
25 days ago
from Northeast, USA

My go-to Vitamin C serum for life

My absolute favorite Vitamin C serum. It goes on so nicely with no icky sitckiness. A single pump is all you need and it absorbs beautifully and goes on so smoothly. I have used other vitamin C serums but none are as easy and pleasant to use as Kiehl's. I follow this with my Kiehl's Ultra Facial Cream which is a lovely complement to any active serum. Lastly, I think this is very good value for the volume.

Recommends this product

Customer review from kiehls.com

Mavs
1 month ago
from Massachusetts

Excellent serum for aging skin

This serum does wonders for the fine lines u def my eyes and in my forehead. It has a warm, smoothing texture and provides perfect hydration. My skin feels and looks healthier with daily use of this serum.

Customer review from kiehls.com

Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 1.7 oz. This review is from Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate 1.7 oz.
elenamarkin11_4395
1 month ago

It’s promising

I was given this as a sample so I didn’t have enough to use for a long time, but it stuck with me. The texture is silky and absorbs quickly without feeling sticky or heavy, and it layers well under moisturizer and sunscreen. A little goes a long way, and it fits easily into a simple morning routine. Overall, a solid, well-formulated vitamin C option, make sure to hydrate after if you use topical Tretinoin also.

Customer review from influenster.com