Dermatologist Solutions Powerful-Strength Vitamin C Serum, 3.4 fl. oz.

4.5 (1,823)
$110.50 (15% off) with code: VIP$130.00 ($140.00 value)
Size:3.4 oz
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Product details

Web ID: 13638378
A Vitamin C serum that boosts radiance, helps firm skin and visibly diminishes fine lines, wrinkles and pores for smoother-looking skin. Formulated with 10.5% L-Ascorbic Acid and 2% Ascorbyl Glucoside plus Hyaluronic Acid, this patented, water-free concentrate is a Kiehl's customer favorite.

  • Product Features

    • SKIN TYPES:
    • For all skin types, including sensitive.
    • WHAT IT DOES:
    • Helps visibly reduce fine lines, refine skin's texture and boost radiance in just one night.
    • Helps smooth and firm skin's appearance.
    • Boosts essential moisture to help restore the appearance of tired-looking skin.
    • Replenishes skin at night when it is most receptive to repairing itself from daily aggressors.
    • Absorbs easily with a lightweight texture.
    • Leaves skin soft, supple and hydrated.
    • Paraben-free, alcohol-free, mineral oil-free, and dye-free.
    • HOW TO USE:
    • After cleansing, apply two pumps of Vitamin C serum over entire face, avoiding the eye area.
    • As it blends into skin, you may experience a feeling of warmth as the formula activates.
    • Avoid the eye area; in case of contact with eyes, rinse them immediately.
    • During the day, protect skin by layering with: Super Fluid UV Defense SPF 50+.
    • WHEN TO USE:
    • Kiehl's Ultra Facial CreamStart with a once-daily application, and gradually build to twice a day.
    • Use morning and night.
    • USE WITH:
    • Kiehl's Ultra Facial Cleanser.
    • Kiehl's Powerful-Strength Vitamin C Eye Serum.
    • Kiehl's Super Multi-Corrective Cream.

  • Shipping & Returns

    • These items qualify for Free Shipping with minimum purchase! exclusions & details
    • Our Normal Gift Boxing is not available for these items.
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
    • For complete details, see our Shipping and Returns policies.

Ratings & Reviews

Here's what customers think
  • This vitamin C serum is an effective anti-aging product that helps reduce the appearance of fine lines and wrinkles, even out skin tone, and leave the skin looking brighter and more radiant.
  • The high concentration of vitamin C (12.5%) boosts collagen production and protects the skin, while the addition of hyaluronic acid helps plump and hydrate.
  • While some users experienced initial irritation or dryness, most found the serum to be gentle and non-irritating, even for sensitive skin types.
  • The lightweight, non-greasy texture absorbs easily into the skin.
  • Overall, this serum delivers visible results in improving skin tone, texture, and radiance.
AI-generated summary from 1,790 customers reviews.
4.5/5

1,823 star ratings, 1,790 reviews

Write a Review
75.4% of reviews have 5 stars
1375
11.7% of reviews have 4 stars
214
3.7% of reviews have 3 stars
67
2.8% of reviews have 2 stars
51
6.4% of reviews have 1 star
116

On average, customers rate the Oil-absorbing/moisturizing of this item as Neutral.

On average, customers rate the Heavy/light of this item as Neutral.

On average, customers rate the Best for day/best for night of this item as Day or night.

76 customer images

1,790 reviews
Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 3.4 fl. oz. This review is from Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 3.4 fl. oz.
Mickey2
14 days ago

Best product for dry fabric skin

This product is awesome! I use it 2x daily. My skin is dewy all the time which is what I was looking for. I'm 72 & struggle with dry skin & this is my solution!

Customer review from kiehls.com

Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 2.5 fl. oz. This review is from Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 2.5 fl. oz.
EmilyH
14 days ago

Love love love

My favorite vitamin c serum. I have tried so many of these and nothing feels as nice on my skin as this. It is light weight, nice scent, and visibly adds brightness to my skin. Best one I’ve found on the market!

Customer review from influenster.com

Ryan B
15 days ago
Incentivized review

Highly recommended

Love this

Recommends this product

Customer review from bloomingdales.com

Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 1.7 fl. oz. This review is from Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 1.7 fl. oz.
Cyclamen
16 days ago
from New York

Noticeable results

When I use this continuously, my pores get smaller and my mature skin looks smoother. I took one star off bc it can be irritating for a sensitive skin gal like me, depending on the skin condition of the day. I use it in the morning, 3-4 times per week. It's not greasy and has a matte finish. It doesn't affect my makeup/sunscreen application.

Customer review from kiehls.com

Response from kiehls.com

Consumer Care Center11 days ago

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 - Fri 10am-7pm EST for assistance and provide the case #45651852. Looking forward to speaking with you. It would be helpful if you could have the product available when you call.

DianaT
16 days ago

Powerful Brightening Serum That Leaves Skin Smooth

The Kiehl’s Powerful‑Strength Vitamin C Serum from Kiehl’s is one of those serums that immediately makes your skincare routine feel more results-focused. The texture is silky and slightly warming when applied, which makes the formula feel very active and effective on the skin. I love how lightweight yet nourishing it feels. It absorbs quickly and leaves the skin incredibly smooth and soft without any sticky residue. After a few uses, my complexion looks brighter, more even, and noticeably more radiant. What stands out most is how well it improves overall skin texture. My skin feels refined and healthy, and it gives that subtle glow that makes the complexion look naturally luminous. It also layers beautifully with moisturizer and sunscreen, making it easy to include in a morning routine. The packaging is simple and practical, and a small amount goes a long way, which makes the product last longer than expected. It truly feels like a high-performance vitamin C treatment designed to enhance radiance and improve the look of dull skin. If you’re looking for a serum that delivers brightening, smoother texture, and a healthy radiant glow, this is definitely a standout product in modern skincare. Serums like this are the reason vitamin C is such an essential step in a results-driven skincare routine.

Customer review from influenster.com

Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 1.7 fl. oz. This review is from Kiehl's Since 1851 Dermatologist Solutions Powerful-Strength Vitamin C Serum, 1.7 fl. oz.
notforme
17 days ago

love it!

I love this product... feel like it firms my aging skin and revitalizes it.

Customer review from kiehls.com

AlexandraT
23 days ago

Just okay

I didn’t dislike this product but I also don’t think it made a huge difference in my skin. I felt mildly hydrating and played well with my other skincare steps but I can’t say I actually noticed brighter skin or less discoloration.

Customer review from influenster.com

Response from influenster.com

Consumer Care Center22 days ago

Hello and thank you for sharing your experience with the Powerful-Strength Vitamin C Serum. We are glad to hear that it felt hydrating and layered well with your other skincare steps. However, we understand your disappointment in not seeing the brightening results you were hoping for. Vitamin C can sometimes take 4 to 8 weeks of consistent use to show visible improvements in discoloration and radiance. If you are looking for more intensive brightening, you might enjoy our Clearly Corrective Dark Spot Solution, which specifically targets clarity and stubborn spots. We appreciate your feedback and would be happy to help you find a more suitable formula for your skin goals!

MaiN
26 days ago

Good for sensitive skin

Hands down the best vitamin c serum I’ve ever used. My skin is brighter and smoother after half of the bottle. It doesn’t sting at all for my sensitive skin

Customer review from influenster.com