PRODUCT REVIEW
Kiehl's Powerful-Strength Line-Reducing Concentrate
Works for:
based on ingredients and %- Anti-aging
- Moisturizing
- Evens skin tone
- Anti-oxidation
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Can it cause trouble?
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Product summary
What can the product work for?
Works for
Anti-aging
What does the product description say?
Skin Type All Skin Types Targeting Fine Lines & Wrinkles Dehydration Lack of Firmness Fight back against the signs of ageing with Kiehl’s Powerful Strength Line Reducing Concentrate, a skincare serum formulated to smooth and even out skin texture.
adenosine
0.35% -
0.8%
Irritation risk:
Concentration: Effectiveness: HIGH
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)
ascorbyl glucoside
1.3% -
1.9%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
ascorbic acid
3.5% -
5.3%
Irritation risk:
Concentration: Insufficient!
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Evens skin tone
What does the product description say?
Kiehl's original Powerful Strength Line Reducing Concentrate is a potent Vitamin C serum that 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.
ascorbyl glucoside
1.3% -
1.9%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
ascorbic acid
3.5% -
5.3%
Irritation risk:
Concentration: Insufficient!
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Moisturizing
What does the product description say?
Skin Type All Skin Types Targeting Fine Lines & Wrinkles Dehydration Lack of Firmness Fight back against the signs of ageing with Kiehl’s Powerful Strength Line Reducing Concentrate, a skincare serum formulated to smooth and even out skin texture.
hydrolyzed hyaluronic acid
0.3% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin
glycerin
4.4% -
6.7%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
dimethicone
6.6% -
9.9%
Irritation risk:
Concentration: Effectiveness: HIGH
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
Show more
Anti-oxidation
ascorbyl glucoside
1.3% -
1.9%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
adenosine
0.35% -
0.8%
Irritation risk:
Concentration: Effectiveness:
LOW
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)
ascorbic acid
3.5% -
5.3%
Irritation risk:
Concentration: Insufficient!
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Moisturizing | |
| Evens skin tone |
Total Promises Fulfilled score:
83/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 1
Potential irritants
propylene glycol
23% -
35%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
ascorbic acid
3.5% -
5.3%
Irritation risk:
Works for:
Evens skin tone,
Anti-aging,
Anti-oxidation
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Show more
Comodogenic ingredients
ethylhexyl palmitate
2.7% -
4%
Irritation risk: Comedogenicity: High
Works for:
Moisturizing
An emollient that helps soften the skin and create a nice product texture
User reviews (1)
Recommend
1 review
0%
|
100%
How would you describe the texture?
1 review
heavy
Light
How much does it pill under makeup?
1 review
A lot
Not at all
How much does this product clog
pores?
1 review
Definitely clogs pores
Doesn't clog pores
How would you describe the smell?
1 review
No smell
Light fragrance
Strong fragrance
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| Price | ||||||||||||
| WIMJ similarity score |
85%
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99%
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94%
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85%
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85%
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85%
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85%
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84%
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84%
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82%
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82%
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| Irritancy | IRRITANCY
HIGH
| IRRITANCY
MEDIUM
| IRRITANCY
LOW
| IRRITANCY
MEDIUM
| IRRITANCY
LOW
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
HIGH
| IRRITANCY
MEDIUM
| IRRITANCY
HIGH
| IRRITANCY
HIGH
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Ingredients & concentrations
All ingredients
Key Actives
ascorbic acid
3.5% -
5.3%
Irritation risk:
Works for:
Evens skin tone,
Anti-aging,
Anti-oxidation
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
ascorbyl glucoside
1.3% -
1.9%
Irritation risk:
Works for:
Evens skin tone,
Anti-oxidation,
Anti-aging
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products
Show more
Potential irritants
propylene glycol
23% -
35%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
ascorbic acid
3.5% -
5.3%
Irritation risk:
Works for:
Evens skin tone,
Anti-aging,
Anti-oxidation
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
Show more
Comodogenic ingredients
ethylhexyl palmitate
2.7% -
4%
Irritation risk: Comedogenicity: High
Works for:
Moisturizing
An emollient that helps soften the skin and create a nice product texture
All ingredients
propylene glycol
23% -
35%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
dimethicone
6.6% -
9.9%
Irritation risk:
Works for:
Moisturizing,
Mattifying
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
glycerin
4.4% -
6.7%
Irritation risk:
Works for:
Moisturizing
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Show more
Ingredient list view
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 peel oil, Citrus limon peel oil, Citral, Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate
Sources
- Surfactants and experimental irritant contact dermatitis
- Propylene Glycol
- Skin-sensitizing and irritant properties of propylene glycol
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Glycerol and the skin: holistic approach to its origin and functions
- The Roles of Vitamin C in Skin Health
- Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivatives
- Oxidative DNA damage induced by HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulfonic acid) buffer in the presence of Au(III)
- Evaluation of anti-wrinkle efficacy of adenosine-containing products using the FOITS technique
- Efficacy of a New Topical Nano-hyaluronic Acid in Humans
- Physiochemical properties and application of hyaluronic acid: a systematic review