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Kiehl's Since 1851 Powerful-Strength Line-Reducing Concentrate
Summary
Highlights
The Powerful-Strength Line-Reducing Concentrate is a potent vitamin C serum by Kiehl's Since 1851 that is formulated with 12.5% vitamin C and hyaluronic acid.
Benefits
- Instantly boosts radiance
- Helps visibly reduce lines and wrinkles in just 2 weeks, while helping firm skin over time
- Smooths skin's texture and helps visibly minimize the appearance of enlarged pores
- Stabilized Vitamin C penetrates skin's deeper surface layers and remains effective in skin for up to 6 days
- Dermatologist-tested for safety
Key Ingredients
- Pure Vitamin C: a highly efficacious antioxidant known for its ability to improve the appearance of skin aging; known to help boost radiance, improve texture, and visibly reduce the appearance of lines, wrinkles, and other signs of aging
- Vitamin Cg: a vitamin C derivative that activates once absorbed into the upper layers of the skin's surface; with antioxidant benefits, it's frequently used in anti-wrinkle skincare products to help reduce facial lines over time
- Fragmented Hyaluronic Acid: acts like a sponge and draws moisture into skin's surface layers and expands as it absorbs; it is known to help smooth and plump and is commonly used in skincare products intended to visibly reduce facial lines and refine texture
Item 2536636
- Cleanse skin thoroughly prior to application
- Apply over entire face, avoiding the eye area
- As formula blends into skin, you may experience a feeling of warmth
- Can be used twice a day, morning and night
Propylene Glycol, Dimethicone, Glycerin, Ascorbic Acid, Ethylhexyl Palmitate, Cetyl Peg/Ppg-10/1 Dimethicone, Dimethicone Crosspolymer, Ascorbyl Glucoside, Cyclohexasiloxane, Hydroxyethylpiperazine Ethane Sulfonic Acid, Lauroyl Lysine, Acrylonitrile/Methyl Methacrylate/ Vinylidene Chloride Copolymer, Polysilicone-11, Adenosine, Hydrolyzed Hyaluronic Acid, Limonene, Isobutane, Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Limon Peel Oil/Lemon Peel Oil, Citral, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate.
This brand is excluded from most Ulta Beauty coupons.
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Questions
Ask a QuestionQ&A
Showing 20 out of 21 Questions
- Q
Can this be used with retinol ? And if yes how to apply in what order?
- Asked by Mo
- Official Answer By Kiehl's - BEHello there! Thank you for asking about Kiehl's Since 1851 Powerful Strength Line Reducing Concentrate! We do not recommend laying this product with retinol. We recommend Powerful Strength Line Reducing Concentrate in the AM and Retinol in the PM. We hope that this information has been helpful.Was this answer helpful to you
- Q
From what age you can suggest to use this product? Is it 40, 50 or 60 years old and up? Thank you
- Asked by Lizzay
- Official Answer By Kiehl's - BEHello there! Thank you for asking about our Kiehl's Since 1851 Powerful Strength Line Reducing Concentrate! This is a potent Vitamin C Serum by Kiehl's formulated with 12.5% Vitamin C and Hyaluronic Acid! It is suitable for All Skin Types, including Sensitive Skin. If you are looking to boosts radiance, helps firm skin and visibly diminishes fine lines, wrinkles and pores for smoother-looking skin, this would be a great addition to your skincare regimen. We hope that you try it out soon.Was this answer helpful to you
- Q
what products do yoou have for deep wrinkles not just wrinkles and lines?
- Asked by Lliz
- Official Answer By Kiehl's - BEHi there! We appreciate your interest in our products. We have many products that target deep wrinkles! Our Super Multi-Corrective Anti-Aging Cream For Face And Neck, Micro-Dose Anti-Aging Retinol Serum With Ceramides And Peptide, Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum, and Powerful Wrinkle Reducing Eye Cream are a few that target deep wrinkles. We recommend calling our toll free number or visiting one of our stores for assistance picking a product.Was this answer helpful to you
- Q
Is this an AM or PM use product?
- Asked by Lizlipsticks
- Official Answer By Kiehl's - BEHello there! Thank you for asking about Kiehl's Since 1851 Powerful Strength Line Reducing Concentrate - 2.5 oz! This serum can be used twice a day, morning and night. We hope that you try it out soon!Was this answer helpful to you
- Q
Is this product fragrance free?
- Asked by Kay
- Official Answer By Kiehl's - BEHi there! Thank you for inquiring about our Powerful Strength Line Reducing Concentrate. This product is a potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid that visibly diminishes fine lines in just 2 weeks. It is only Paraben-Free, Alcohol-Free, Mineral oil-free,and Dye-free.Was this answer helpful to you
- Q
I just received the TINY size 😀 and I can't read how much to use. Thank you
- Asked by Lady D
- Official Answer By Kiehl's - BEAfter cleansing, apply two pumps over entire face, avoiding the eye area. We cant wait for you to try it!Was this answer helpful to you
- Q
Can this be used with midnight recovery concentrate at night? Before or after? Thanks.
- Asked by Jo
- Official Answer By Kiehl's - BEHi there, thank you for reaching out about Powerful Strength Line Reducing Concentrate! After cleansing, apply two pumps of Vitamin C serum over entire face, avoiding the eye area. You can apply our Midnight Recovery Concentrate after our Powerful Strength Line Reducing Concentrate. We hope this helps! Was this answer helpful to you
- Q
Do I need to add a hyaluronic serum with this as well?
- Asked by sherm15
- Official Answer By Kiehl's - BEHi there! We appreciate your interest in our Powerful-Strength Vitamin C Serum. This is a potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid that visibly diminishes fine lines in just 2 weeks. Paraben-Free. Alcohol-Free. Mineral oil-free. Dye-free. We invite you to check out our skin analysis program on our website here: https://tinyurl.com/y9npro46. With this, a personalized skin care routine will be formulated for you. We hope you check it out! Was this answer helpful to you
- Q
Does this contain anything to support collagen production? Like peptides?
- Asked by Eva
- Official Answer By Kiehl's - BEHi there! Thank you for reaching out regarding our Powerful Strength Line Reducing Concentrate. Our product does not claim to contain peptides in their ingredient list however 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. Hope this information helps and that you continue to use our products.Was this answer helpful to you
- Q
What is the color of the travel size Kiehl's? i received one and its color yellow while the bigger size is color white? Is this okay?
- Asked by CAROL
- Official Answer By Kiehl's - BEIt is ok. Vitamin C is a potent antioxidant. There are different types of vitamin Cs that are chemically modified for stability and delivering specific skin benefits, like L-Ascorbic Acid. Over time, even in our stabilizing waterless formula, some Vitamin C is expected to oxidize and change color. This doesn’t mean the serum is less effective, it is part of Vitamin C/L-Ascorbic Acid’s properties as an antioxidant. Through our rigorous formula testing, even with a slight color change, Powerful-Strength Line-Reducing Concentrate maintains its efficacy.Was this answer helpful to you
- Q
Does this product need to be refrigerated after opening?
- Asked by Paige
- Official Answer By Kiehl's - BEAlthough a good rule of thumb is to store skincare products in a cool, dry place, refrigeration is not necessary.Was this answer helpful to you
- Q
Does this product need to be refrigerated after first use?
- Asked by Paige
- Official Answer By Kiehl's - BEAlthough a good rule of thumb is to store skincare products in a cool, dry place, refrigeration is not necessary.Was this answer helpful to you
- Q
Can you mix this into the Ultra Cream or should this be used first? Thanks!!
- Asked by Leah
- Official Answer By Kiehl's - BEHi! We do not suggest mixing them together. We suggest applying the Powerful Strength Line Reducing Concentrate after cleansing and toning and before moisturizing. We hope this helps! Was this answer helpful to you
- Q
should I use this before , after or instead of my serum?
- Asked by carol
- Official Answer By Kiehl's - BEHi there, thanks for reaching out! We suggest using the Powerful Strength Line Reducing Concentrate before your serums and allowing 4 - 5 minutes in between to allow them to fully absorb. We hope this helps! Was this answer helpful to you
- Q
for big spot frickles
- Asked by Anita
- Official Answer By Kiehl's - BEHello there! Thank you for your interest in Powerful Strength Line Reducing Concentrate. This serum instantly boosts radiance, helps firm skin and visibly diminishes fine lines, wrinkles and pores for smoother-looking skin. We hope this information is helpful and we wish you great success with our products! Was this answer helpful to you
- Q
Is this noncomedogenic?
- Asked by Doreen
- Official Answer By Kiehl's - BEYes. This product contains no pore-clogging ingredients. Was this answer helpful to you
- Q
When using the dark spot corrector, midnight recovery and this serum, what order should I apply them?
- Asked by Judy
- Official Answer By Kiehl's - BEAt Kiehl's we advise always applying your treatment serum (Powerful-Strength Line Reducing Concentrate) right after you cleanse and tone. Then, after the serum absorbs into skin, warm four to six drops of Midnight Recovery Concentrate between palms and pat or tap onto skin. Follow with appropriate moisturizer. We typically do not advise layering two different treatment serums (such as Clearly Corrective Dark Spot Solution and Powerful-Strength Line Reducing Concentrate because they are so powerful that they may cause irritation. Perhaps use one in the AM and the other in the PM.Was this answer helpful to you
- Q
Hello, I am 32 years old, and i have a couple acne scars, very enlarged pores, and I am looking for a treatment that would both help with renewing the skin, thus the scars and the pores and deal with signs of aging, e.g. lift my skin, prevent fine lines.. Is this product appropriate, and/or what other products do you recommend for these problems?
- Asked by firefly
- Official Answer By Kiehl's - BEHi there, thanks for reaching out! The Powerful Strength Line Reducing Concentrate will help visibly reduce wrinkles and fine lines and boost radiance. If you were looking for something to correct acne scars, we suggest the Clearly Corrective Dark Spot Solution. This is a dark spot corrector and brightening serum that helps visibly reduce dark spots, hyperpigmentation, and post-acne marks. We hope this helps! Was this answer helpful to you
- Q
Can this be used for under eye wrinkles?
- Asked by Ladyli123
- Official Answer By Kiehl's - BEno, this formula is made for facial tissue. We have a formula designed for the delicate eye area though- Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum is formulated with 10% Pure Vitamin C, Tri-Peptide and Hyaluronic Acid, this efficacious formula is clinically-demonstrated to help decrease the appearance of dark circles, lines, crow's feet, and puffy eyes. Dermatologist- and ophthalmologist-tested for safety and suitable for contact lens wearers. Here is a link: https://www.ulta.com/powerful-strength-dark-circle-reducing-vitamin-c-eye-serum?productId=pimprod2014179Was this answer helpful to you
- Q
Does this serum help with acne scars ?
- Asked by Brianna
- Official Answer By Kiehl's - BEThis formula contains a perfect dosage of Vitamin C, an ingredient that is known to strengthen, brighten and resurface skin. For those reasons, you may find benefit with scarring. Also consider our Clearly Corrective Dark Spot Solution- which is also Vitamin C based and focused more on discoloration. Don;t forget sunscreen!Was this answer helpful to you
Reviews
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Most Helpful Positive Review
Finally...Something that does what it says!!
I received the Line reducing concentrate as a gift and I must say, its one of my most treasured beauty products. After the first few days the tone and texture of my skin had a noticeable improvement. I have some discoloration on my forehead, right at the hairline, from sun worship that has faded dra...
Most Helpful Critical Review
BEWARE OF THE NEW 3.4 OZ SIZE BOTTLE
I am a devoted fan of this serum. It has saved my skin! I recently stopped into my local Kiehl's for yet another bottle and the salesperson immediately directed me to their new 3.4 oz bottle (for $100). I was delighted at the thought of more product for less dough! HOWEVER, I got it home and after p...
1016 results
I love this product.
I have been using this product every day for about 2 years. Can't go without.
Favorite Vitamin C Treatment
I tried another treatment because this is a bit pricey but I came back. I love the tingling that I feel from the Vitamin C. Not sure if that means there is more concentrate than compeditors🤷♀️. Goes on easy and smooth and I don't need to use a lot.
It's almost like magic in a bottle!
Verified Reviewer
Reviewed at
Without a doubt Kiehl's Vitamin C Serum is the very best. My skin is smoother and brighter in a way that almost seemed unreal. I honestly wondered if I was imagining the difference being so noticeable until I visited family I'd not seen in a few years. I was actually asked if I had had work done. That visit ended with two family members buying Kiehl's Vitamin C Serum! My skin looks better than it did when I was in my 30's! I love this serum so much!
Sunshine in a bottle
Verified Reviewer
Reviewed at
Repeated use has cleared my skin and made my coloring more even. I have a healthy glow.
Great for Senstiive Skin
Verified Reviewer
Submitted as part of a sweepstakes entry
Reviewed at
This product has been great. I have very sensitive skin and this has not caused any irritation!