Powerful-Strength Line-Reducing Concentrate

4.4 (1,971)
$79.00
Size:1.7 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

4.4/5

1,971 star ratings & reviews

Write a review
71.0% of reviews have 5 stars
1400
14.6% of reviews have 4 stars
287
5.2% of reviews have 3 stars
103
3.1% of reviews have 2 stars
61
6.1% of reviews have 1 star
120

65 customer images

  • morning routine
  • Powerful strength line reducing concentrate
  • My every morning routine
1,971 reviews
Tinagirl
21 days ago

Wanted to love

Feels wonderful going on but made my skin break out so no idea if it actually works

Customer review from kiehls.com

Response from kiehls.com

Consumer Care Center19 days ago

Hi there! We are sorry to hear about the experience you had with our Powerful-Strength Vitamin C Serum. We would like to speak with you directly about it. Please give us a call at 1-800-543-4572 Mon - Sun 10am-7pm EST for assistance and provide the case #43196676. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.

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.
Sherry
29 days ago
from CA

My Usual Take!

I always use this lotion and when there is special offer, I take the chance to supply with a better value. This time I got a good deal indeed.

Customer review from macys.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.
carlee08
2 months ago
from California
Incentivized review

Love it!

This is my first time trying a Vitamin C serum, and it didn’t irritate my skin. It has such a soft texture, is easy to apply, and has a nice scent.

Recommends this product

Customer review from kiehls.com

Beauty50
2 months ago
from New York

Triggers Pimple Breakout EveryTime.

I love Kheils products BUT the Vitamin C Serum makes me break out with pimples every time I use it. I don’t have a breakout or pimple problem generally and have gone stretches without using the serum to see if in fact the serum is the trigger. And unfortunately it is. Every time I use it I am assured to wake up with pimple. Bummer.

  • Photo from Beauty50

Customer review from kiehls.com

Response from kiehls.com

Consumer Care Center2 months ago

Hi Beauty50! We are sorry to hear about the experience you had with our Powerful-Strength Vitamin C Serum. We would like to speak with you directly about it. Please give us a call at 1-800-543-4572 Mon - Sun 10am-7pm EST for assistance and provide the case #42666692. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.

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.
Yaqira
2 months ago
from Illinois

Great Product

Results from this product are very gratifying. I purchased to minimize fine lines and dark spots. The forehead lines? I’m very pleased they are disappearing after 2 weeks of using 2x/day. The dark spots may take a little more time. Overall a great product for my use, I’m also experiencing some slight firming in my problem area (forehead). We’ll repost more results after a month. I’m Happy I purchased this product

Recommends this product

Customer review from kiehls.com

Jackie O
2 months ago

Love the hydration!

A delightful serum that hydrates and smoothes my skin. My skin looks better and I have used it for several years. Of course, drinking water always helps too!

Customer review from kiehls.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.
MKiehls
2 months ago

Reformulated, unfortunately

I have been using this serum for several years. It was recently updated and appears white instead of the usual yellowish color. Also, the tingling sensation is gone. Wish the ingredients would have remained the same.

Customer review from kiehls.com

Response from kiehls.com

Consumer Care Center3 months ago

Hello! We appreciate your feedback on our Powerful-Strength Vitamin C Serum. Minor formula adjustments are sometimes necessary due to ingredient availability or product improvements, but these changes are designed to maintain or enhance performance. The ingredient list on the product is always accurate. We're sorry you're not enjoying this product and we will definitely share this information with our team. Thank you for sharing this with us and we invite you to explore our other skincare solutions at Kiehl's to find your perfect match!

zaid2025_3465
3 months ago

Fast-absorbing Vitamin C serum that brightens, smo

The Kiehl’s Powerful-Strength Vitamin C Serum has been amazing for my skin! The texture is silky and smooth, and it absorbs quickly without feeling greasy or sticky. I love that it layers well under moisturizer and makeup. It has a light citrus scent that feels fresh but not overpowering. The packaging is practical with the pump, which makes it easy to control the right amount of product and keeps it hygienic. In terms of effectiveness, my skin looks brighter, smoother, and more even-toned after consistent use. Fine lines are less noticeable, and it gives my skin a healthy glow. Definitely a staple in my skincare routine!

  • Photo from zaid2025_3465

Customer review from influenster.com