Works for:
based on ingredients and %- Moisturizing
- Anti-aging
Can it cause trouble?
- Irritation risk: high
- Comedogenic risk ingredients: 1
Key actives
Product Summary
"Kiehl's - s Age Defender Power Serum" is effective for: Moisturizing and Anti-aging
Ingredient callouts
- Adenosine 0.10% - 0.35%. It is a chemical present inside our skin cells. A clinical trial confirmed that topical application of Adenosine in a low concentration can reduce dynamic wrinkles (these are the wrinkles that appear with age in a places where our mimic is the most active, for example, in the corners of the eyes or on the forehead).
- Humectants (glycerin 4.30% - 6.40% and biosaccharide gum-1 0.10% - 0.45%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Price
The product retails from 48.26$ up to 66.50$ in the United States, from 40.80£ up to 357.00£ in the United Kingdom and for 68.00CA$ in Canada.
For a detailed price comparison: click here.
Works for
Anti-aging
What does the product description say?
Targeting Fine Lines & Wrinkles Dehydration Lack of Firmness Rejuvenate skin and defy the effects of ageing with Kiehl's Age Defender Power Serum, a potent anti-ageing, anti-wrinkle formula for men.
Source: SpaceNK
This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains adenosine.
Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.
Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Moisturizing
What does the product description say?
When used in conjunction with a moisturiser, this serum is even more powerful.
Source: SpaceNK
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from
within deeper layers of the skin. The following ingredients in this product do the job:
biosaccharide gum-1, glycerin.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: dimethicone, glycine soja oil.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: hydroxypalmitoyl sphinganine
Helps attract water to the upper layer of the skin and is claimed to provide a longer-lasting hydration because of its ability to create a water-binding film on the surface of the skin
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.
A sugar-derived compound that helps to attract water to the upper layer of the skin and might be able to stimulate synthesis of skin's own moisturizing factors, but solid research is lacking. It could be irritating
A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin
Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)
Helps attract water to the upper layer of the skin. Might have some anti-oxidant properties
Helps attract water to the upper layer of the skin. Might have some anti-aging, anti-oxidant, and skin lightening properties, but solid evidence is missing
Used to preserve products, dissolve other ingredients and create a nice product texture
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
Forms a protective film on the surface of the skin to prevent moisture loss. Gives a velvety feel to products while reducing tackiness
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Moisturizing |
Total Promises Fulfilled score: 100/100.
We receive a small commission for purchases made through these links at no cost for you. Thank you for your support! Learn more
Potential irritants
Comedogenic ingredients
User reviews (0)
Averages from community submissions.
No reviews yet for this product.
Be the first to share your experience!
Tried this product?
Help capture what the ingredient list can't—texture, finish, pilling, scent, and more. Answer what you can, skip the rest.
Takes ~30 seconds.
Reviews are shown in aggregate. No personal details.
| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 Kiehl's s Age Defender Power Serum | Current | $40.80 | |
 BIOTHERM FORCE SUPREME YOUTH ARCHITECT ANTI WRINKLE SERUM | 72% | $82.00 | |
 Institut Esthederm EXCELLAGE SERUM | 51% | $75.00 | |
Thalgo Brightening Correcting Serum | 50% | $75.50 | |
 LANEIGE Perfect Renew Youth Serum | 50% | $59.00 | |
 Vichy Liftactiv Serum 10 Supreme | 50% | $14.99 |
Key Actives
Potential irritants
Comedogenic ingredients
All ingredients
Ingredient list view
Water, Glycerin, Dimethicone, Alcohol denat., Isononyl isononanoate, Butylene glycol, Ammonium polyacryloyldimethyl taurate, Phenoxyethanol, Pentylene glycol, Hydrolyzed soy protein, Parfum, Hydroxypropyl tetrahydropyrantriol, Propylene glycol, Ruscus aculeatus root extract, Glycine soja oil, Caffeine, Tocopherol, Hydrolyzed rice protein, Limonene, Biosaccharide gum-1, Disodium edta, Adenosine, T-butyl alcohol, Hydroxypalmitoyl sphinganine, Cryptomeria japonica bud extract, Linalool, Citral
- Glycerol and the skin: holistic approach to its origin and functions
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Safety Assessment of Acryloyldimethyltaurate Polymers as Used in Cosmetics
- Extracts from Glycine max (soybean) induce elastin synthesis and inhibit elastase activity
- Dermatological and cosmeceutical benefits of Glycine max (soybean) and its active components
- Safety Assessment of Soy Peptides as Used in Cosmetics
- A Compensating Skin Care Complex Containing Pro-xylane in Menopausal Women: Results from a Multicentre, Evaluator-blinded, Randomized Study
- Synthesis of Pro-XylaneTM: A new biologically active C-glycoside in aqueous media
- First case of contact dermatitis caused by hydroxypropyl tetrahydropyrantriol used in an anti-ageing cream
- Surfactants and experimental irritant contact dermatitis
- Propylene Glycol
- Skin-sensitizing and irritant properties of propylene glycol
- Vitamin E in dermatology
- Vitamin E and Skin Health
- Protection Against Free Radicals (UVB Irradiation) of a Water-Soluble Enzymatic Extract from Rice Bran. Study Using Human Keratinocyte Monolayer and Reconstructed Human Epidermis
- Amended final report on the safety assessment of Oryza Sativa (rice) Bran Oil, Oryza Sativa (rice) Germ Oil, Rice Bran Acid,Oryza Sativa (rice) Bran Wax, Hydrogenated Rice Bran Wax, Oryza Sativa (rice)Bran Extract, Oryza Sativa (rice) Extract, Oryza Sativa (rice) Germ Powder, Oryza Sativa (rice) Starch, Oryza Sativa (rice) Bran, Hydrolyzed Rice Bran Extract, Hydrolyzed Rice Bran Protein, Hydrolyzed Rice Extract, and Hydrolyzed Rice Protein
- Evaluation of anti-wrinkle efficacy of adenosine-containing products using the FOITS technique
- Amended final report of the safety assessment of t-Butyl Alcohol as used in cosmetics
- Acceptability and Efficacy of an Emollient Containing Ceramide-Precursor Lipids and Moisturizing Factors for Atopic Dermatitis in Pediatric Patients
- Emollient treatment of atopic dermatitis: latest evidence and clinical considerations