What is Kiehl’s Fine Line-Reducing Serum?

As per the product’s official site, Kiehl’s is a skincare brand that traces its history back to old, late-1800s New York. Originally set up as an apothecary, Kiehl’s concocted natural regimens that helped relieve people of their ailments, that includes their skincare problems. Love Oil was the first product that put Kiehl’s on the radar, and in 2000, was acquired by the global industry giant, L’Oreal Group of Companies.

Kiehl’s Powerful-Strength Line-Reducing Concentrate is a highly concentrated, anti-aging solution.

Pros and Cons of Kiehl’s Fine Line-Reducing Serum

Kiehl’s Fine Line-Reducing Serum

  • Form:Serum
  • Skin Type:Normal, Dry, Combination, and Oily
  • Benefit:Helps Visibly Reduce Lines and Wrinkles, Smoothes Skin’s Texture
  • Ingredients:Vitamin C, Adenosine, Glycerin, Pentylene Glycol
  • Brand:Kiehl’s
  • Weight:1.7 Fl. Oz.


  • This product contains a stable, very high potency concentration of Vitamin C guaranteed to help this product deliver as it has committed through manufacturer claims.
  • This product is easy to use and easy to incorporate into your daily morning and evening skin care routines.
  • The formula can be easily layered with other products in your regular skin care routine but may not get washed away easily making skin surface greasy.


  • The manufacturer mentions that the product has “clinically demonstrated” delivery of skin improvements but, fails to share the details of the study.
  • This product contains a large dose of silicones which can be harmful, pore-clogging and irritating to your skin.
  • Kiehl’s Powerful-Strength Line-Reducing Concentrate reviews are show users who are either extremely satisfied or, extremely dissatisfied.
  • It contains alcohol which may combat the moisturizing effects of the cream.

Kiehl’s Fine Line-Reducing Serum – Does It Really Work?

According to claims made by the manufacturer, this product has been formulated to deliver the following improvements to your skin:

  • Revitalize your skin to improve its texture, radiance and overall skin tone
  • Deliver a high dose of Vitamin C to help boost cellular energy which, in turn, speeds up cellular processes
  • Boost your antioxidant levels to provide better, more potent protection from environmental stressors and free radicals
  • Exfoliate your skin to stimulate more efficient delivery of skin renewal mechanisms, including higher levels of collagen production

This product works by delivering multiple functions infused in a single formulation. It facilitates exfoliation, faster skin regeneration and renewal, and better antioxidant protection — all thanks to Vitamin C, and to some extent, Adenosine.

What are the Ingredients in Kiehl’s Fine Line-Reducing Serum?

Vitamin C (10.5%): A highly potent concentration of antioxidants that helps re-energize your skin, renders astringent properties, facilitates exfoliation to help clear and purify your skin, and promotes better protection by acting as an antioxidant [1].

Adenosine: Boosts your cellular energy, this ingredient is key to speedier repairs, regeneration, and renewal that, in turn, restores your skin’s overall health and normal functioning [2].

Glycerin: May help skin retains moisture while reducing inflammation but also can cause skin irritation to sensitive skin [3].

Pentylene Glycol: This ingredient is used in cosmetics and beauty products that is also secondarily used as a solvent and preservative. However, can cause skin irritation, dermatitis, and hives from too many mast skin cells [4].

How To Apply Kiehl’s Fine Line-Reducing Serum?

  • Kiehl’s Powerful-Strength Line-Reducing Concentrate must only be applied to freshly cleansed and toned skin.
  • Use this product as a regular part of your daytime and nighttime skincare routines.
  • Layer with your favorite serums and creams.

Does Kiehl’s Powerful-Strength Line-Reducing Concentrate Have Any Side Effects?

Based on this product’s composition, the following side effects may be experienced:

  • Skin irritations and allergic reactions due to several ingredients, including
  • Increased risk for skin burn or inflammation due to a high Vitamin C concentration which depends on your skin’s tolerance for this formula
  • Increased risk for developing various forms of cancers due to PEGs, chemicals that are used as a transport ingredient in skincare products to deliver ingredients deep into your skin but, which can easily become contaminated with toxins, including 1,4 dioxane, a confirmed carcinogen


Que: Does Kiehl’s line-reducing work?

Ans: Yes, Kiehl’s line-reducing work is excellent.

Que: How long does Kiehl’s Vitamin C Serum last?

Ans: Around 25-30 days Kiehl’s Vitamin C Serum last.

Que: Where can I buy this product?

Ans: Visit the company’s website and place your order.

Final Verdict: Kiehl’s Fine Line-Reducing Serum

Kiehl’s Powerful-Strength Line-Reducing Concentrate offers an additional way for you to address your aging skin problems using just 1 key ingredient, Vitamin C. While this product can be easily layered with other products in your routine, there are, in fact, other products that deliver the same multiple benefits with tried and tested ingredients, apart from just Vitamin C. That means no more layering and lesser chances of encountering product reactions that can lead to skin irritations.

As we age the composition, texture and appearance of our skin changes. Signs of skin aging include wrinkles, fine lines, loss of moisture, uneven tone, and dull, tired-looking skin. There are countless anti-wrinkle creams on the market promising to make skin look and feel younger. Many anti-wrinkle creams promise everything short of a facelift or to provide the much sought after "fountain of youth". In reality most are just moisturizers marketed as anti-aging products.

Below you'll find some of the most effective wrinkle serum formulations on the market today, in our opinion:


Our Top Wrinkle Serum

#1. DRMTLGY Needle-Less Serum

Overall Grade: A+
DRMTLGY Needle-Less Serum Rating Editor Rating Learn More >>
Smoothes Wrinkles*
Improves the Look of Skin Fullness*
Tightens Large Open Pores*
Hydrates the Skin to Give a Radiant Glow*
Promotes a Youthful Appearance*
Ingredient Safety
Projected Effectiveness
Return Policy
Customer Satisfaction
Overall Rating 4.9/5


  • Feels Super Light on Skin
  • 60 Days money-back guarantee
  • Non-greasy formula
  • Has a luminous finish
  • Non-messy opaque liquid
  • Non-messy lotion base
  • Lightweight formula
  • Easy-to-use bottle with dropper
  • Dermatologist recommended
  • Fragrance free formula


  • Different skin types may experience different results

Customer Review & Rating: 4.9/5

"This is the holy grail. I have seen a huge difference in how my skin looks and feels. My crows feet have become minimal in my 60 year young face. I am addicted to all products in this line. They all work and are affordable." - By Liz Melendez


The DRMTLGY Needle-Less Serum is perfect for the people witnessing the fine lines, wrinkles, uneven skin tone & other anti aging problems. The product contains incredible active ingredients, the customer reviews have claimed it worth the price. The serum is lightweight on skin & is clinically proven to reduce the signs of aging.

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#2. Skinception Rosacea Relief Serum

Overall Grade: A
Skinception Rosacea Treatment Rating Editor Rating Learn More >>
Improve Skin Elasticity & Firmness*
Improves Bloodstream*
Minimizes the Redness and Inflammation*
Reduces Skin Discoloration*
Reduces Wrinkles*
Ingredient Safety
Projected Effectiveness
Return Policy
Customer Satisfaction
Overall Rating 4.8/5


  • The ingredients have high penetrating abilities
  • Enhances the skin tone
  • Free-Shipping.
  • Reduces premature aging effect
  • Reduce visibility and the number of spider veins.
  • Clinically Tested Ingredients
  • Made in the USA
  • Prevents New blemishes to form


  • Due to popularity, sometimes it's on backorder/sold out

Customer Review & Rating: 4.8/5

"This is the first product I have used so far that really helped me to calm down the redness and hot feeling on my face. I use it twice a day in the morning under my makeup and UV cream and in the evening, before I use vit. C night cream. It makes a huge difference! 1 bottle lasts for a month for me" - By Shelley Soden


The texture of Skinception Rosacea Relief Serum is delicate and silky. It absorbs into your skin rapidly and does not leave your skin feeling oily or sticky after use. has a nice scent to it as well! To achieve the greatest benefits, it is crucial to cleanse your facial skin as directed on the label before application. Your skin will have a beautiful texture after using this serum. No more moisturiser will be required before wearing makeup.

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#3. Kollagen Intensiv

Overall Grade: A
Kollagen Intensiv Rating Editor Rating Learn More >>
Diminishes Fine Lines & Crow’s Feet*
Minimizes Dark Circles*
Improve Skin Firmness *
Accelerate Natural Collagen Production*
Prevents Photo-Aging Damage*
Ingredient Safety
Projected Effectiveness
Return Policy
Customer Satisfaction
Overall Rating 4.8/5


  • 60 Day Guarantee
  • Comes in a easy-to-access jar
  • Paraben free
  • Non-greasy
  • Available easily online
  • contains the patented peptide, SYN®-COLL


  • No free trial.

Customer Review & Rating: 4.8/5

"I'm a 32-year old professional actor and dancer. At my age getting jobs as a dancer gets more and more difficult. Because of this, I want to hide my real age as much as possible. That's why I started using Kollagen Intensiv. I'd heard about it before by good reputation, which is why I chose this specific cream. I concur that Kollagen Intensiv is an incredible anti-aging cream that really does work. My skin feels and looks amazing, and I could swear that I appear 10 years younger at least. I am so happy I found this product! It has done amazing things to my skin!- By Delilah


Customers have shared their positive feedback about Kollagen Intensiv that from fine lines and wrinkles to sagginess and even pigmentation problems, each and every one is covered well by this anti wrinkle cream. The product is formulated in such a way that it boosts natural collagen production & hence provides a nourished & hydrated skin all day long.

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