Kiehl's Cucumber Herbal Alcohol-Free Toner Review

Kiehl's Cucumber Herbal Alcohol-Free Toner
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
Ingredients

Kiehl's Cucumber Herbal Alcohol-Free Toner Ingredients

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Full Ingredient List (INCI):

Water, Propanediol, Propylene Glycol, Phenoxyethanol, Sodium PCA, Sodium Benzoate, Allantoin, Chamomilla Recutita (Matricaria) Extract, Glucose, Cucumis Sativus (Cucumber) Fruit Extract, Aloe Barbadensis Leaf Juice Powder, Camphor, Urtica Dioica (Nettle) Extract, Equisetum Arvense Extract, Betula Alba Leaf Extract, Yellow 5 (CI 19140), Potassium Sorbate, Red 4 (CI 14700), Blue 1 (CI 42090), Sodium Hydroxide, Citric Acid
Review

Does Kiehl's Cucumber Herbal Alcohol-Free Toner Work?

 
According to CreamScan's analysis of the ingredient list, here’s what Kiehl's Cucumber Herbal Alcohol-Free Toner has to offer:
 
✅ Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.

  

Key Benefits of Kiehl's Cucumber Herbal Alcohol-Free Toner

 
These are the key benefits you can expect from using Kiehl's Cucumber Herbal Alcohol-Free Toner:
 

🔵 Lightweight Purely Humectant Moisturizing, Ideal for Oily Skin

According to CreamScan analysis, Kiehl's Cucumber Herbal Alcohol-Free Toner is quite moisturizing, with a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, primarily due to the high content of Propanediol (est. ≈6.0%) and Propylene Glycol (est. ≈4.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

📌 Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

💧 A Humectant Boost for Any Skincare Routine

But it’s not limited to oily skin - such a humectant boost will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

📌 Please note that this is not a complete list of benefits. We are in the process of enhancing our model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Things to Be Aware Of: Kiehl's Cucumber Herbal Alcohol-Free Toner

 
CreamScan identified a few things to consider before adding Kiehl's Cucumber Herbal Alcohol-Free Toner to your skincare routine:
 

⚠️ If It’s Your Only Moisturizer, It Needs to Be Paired with Some Occlusives

While humectants are highly effective at attracting water to the skin, studies (J. N. Kraft, C. W. Lynde) suggest they may not be efficient when used alone.

One major drawback of purely humectant moisturization is that the water attracted by humectants to the upper layers of the skin can evaporate completely into the environment through transepidermal water loss (TEWL). Adding occlusive ingredients helps seal this moisture into the skin and prevent further water loss.

If you’re using Kiehl's Cucumber Herbal Alcohol-Free Toner as your only moisturizer, consider pairing it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones. These work alongside humectants to create a protective barrier, locking in hydration and ensuring longer-lasting moisturization. The amount of occlusive needed depends on your skin type - the drier the skin, the more occlusives it requires.

If this product is used not as a standalone moisturizer but as part of your skincare routine, such as a toner or serum, it should be applied before your main moisturizer (unless it's a sunscreen), which will provide the necessary occlusivity on top of it.

Pros & Cons of Kiehl's Cucumber Herbal Alcohol-Free Toner

 
Here’s an overview of the pros and cons of Kiehl's Cucumber Herbal Alcohol-Free Toner to help you decide if it’s the right choice for your skincare routine:
 

🟩 Pros:

✅ When used alone: Provides humectant-rich moisturizing ideal for oily skin
✅ As part of a routine: A humectant moisturizing boost, beneficial for any skin type
✅ Lightweight texture
 

⭕ Cons: 

⚠️ Only if used as a standalone moisturizer - it needs to be paired with occlusives to seal in humectants
   

Summary: Kiehl's Cucumber Herbal Alcohol-Free Toner

 
Based on the ingredient list analysis, CreamScan AI suggests that Kiehl's Cucumber Herbal Alcohol-Free Toner
, when used alone, delivers lightweight, humectant-rich moisturizing, making it ideal for oily skin. As part of a moisturizing routine, it provides a humectant boost, beneficial for all skin types.
 
That said, there are some things about Kiehl's Cucumber Herbal Alcohol-Free Toner worth noting.
 
Looking at its moisturizing profile, we found that it doesn’t contain any occlusive ingredients, potentially allowing the moisture attracted to the skin by humectants to evaporate. Therefore, if it’s used as the only moisturizer in a routine, it’s recommended to pair it with one that contains at least some occlusive ingredients, such as oils, butters, or silicones.
 
📌 Fact check. At CreamScan, we are committed to accuracy and fairness. If you spot any errors or something that doesn’t seem right, please click here to let us know. We regularly update the ingredient lists and monitor the latest research on ingredient efficacy to ensure that our information remains as complete and precise as possible. The information provided here is for informational purposes only and does not substitute professional advice. We do not guarantee the efficacy or safety of any product, as individual results may vary.

 

Ingredient Breakdown

Est. % Ingredient Origin Functions
85
6
4
1
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Propanediol
Function:
Origin:
Propylene Glycol
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Sodium PCA
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Allantoin
Function:
Origin:
Chamomilla Recutita (Matricaria) Extract
Function:
Origin:
Glucose
Function:
Origin:
Cucumis Sativus (Cucumber) Fruit Extract
Function:
Origin:
Aloe Barbadensis Leaf Juice Powder
Function:
Origin:
Camphor
Function:
Origin:
Urtica Dioica (Nettle) Extract
Function:
Origin:
Equisetum Arvense Extract
Function:
Origin:
Betula Alba Leaf Extract
Function:
Origin:
Yellow 5 (CI 19140)
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Red 4 (CI 14700)
Function:
Origin:
Blue 1 (CI 42090)
Function:
Origin:
Sodium Hydroxide
Function:
Origin:
Citric Acid
Function:
Origin:

Ratings

All humectants
11.9
6
4
1
0.3
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 11.9 10
10.0
6
4
1
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
1
0.3
0.3
0.3
All humectants 11.9 10
10
All humectants
11.9
6
4
1
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
None
Total
0
None
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
All antioxidants 0.3 3 No
All antioxidants
0.3
Equisetum Arvense Extract
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All soothing 2.4 5 No
All soothing
2.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %85
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Propanediol
Est. %6
Function
Origin
PropanediolAn excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.
Propylene Glycol
Est. %4
Function
Origin
Propylene GlycolA clear, thick, odorless liquid of synthetic origin. Its main function is to stabilize cosmetic products exposed to varying temperatures. It is also a moderately strong humectant with similar properties to glycerin.
Phenoxyethanol
Est. %1
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.
Sodium PCA
Est. %1
Function
Origin
Sodium PCAOne of the most important parts of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Sodium PCA is used in skincare for its fantastic humectant properties.
Sodium Benzoate
Est. %0.3
Function
Origin
Sodium BenzoateA preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Allantoin
Est. %0.3
Function
Origin
AllantoinA fluffy, white powder that acts as a humectant due to its water-loving chemistry and as an exfoliant that helps to remove dead skin cells. It has also been shown to be very soothing to irritated and inflamed skin.
Chamomilla Recutita (Matricaria) Extract
Est. %0.3
Function
Origin
Chamomilla Recutita (Matricaria) ExtractAn extract obtained from the whole German chamomile plant that contains nice-smelling chamazulene and bisabolol, as well as large amounts of soothing mucilage.
Glucose
Est. %0.3
Function
Origin
GlucoseA simple sugar that is also one of two components of sucrose, or table sugar. It is used as a humectant in skincare products. Glucose is also used to flavor lip care cosmetics because of its mildly sweet taste.
Cucumis Sativus (Cucumber) Fruit Extract
Est. %0.3
Function
Origin
Cucumis Sativus (Cucumber) Fruit ExtractA soothing, cooling, and emollient extract derived from cucumbers. Cucumber has been used in skincare for centuries and is used to treat skin problems such as eye swelling, sunburn, and itchy and irritated skin.
Aloe Barbadensis Leaf Juice Powder
Est. %0.3
Function
Origin
Aloe Barbadensis Leaf Juice PowderExtracted from dried aloe vera leaves, it has the same effects as fresh aloe vera juice – it is humectant moisturizing, refreshing, and soothing. This powder can also serve as a gelling agent when mixed with water.
Camphor
Est. %0.3
Function
Origin
CamphorA multifunctional fragrance ingredient that makes a great plasticizer.
Urtica Dioica (Nettle) Extract
Est. %0.3
Function
Origin
Urtica Dioica (Nettle) Extract
Equisetum Arvense Extract
Est. %0.3
Function
Origin
Equisetum Arvense ExtractA soothing extract from the green part of the horsetail, a non-flowering plant that contains a lot of minerals beneficial for skin growth, antioxidant flavonoids, and astringent tannins.
Betula Alba Leaf Extract
Est. %0.3
Function
Origin
Betula Alba Leaf Extract
Yellow 5 (CI 19140)
Est. %0.3
Function
Origin
Yellow 5 (CI 19140)A bright yellow colorant that is often also listed as FD&C Yellow 5.
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
Red 4 (CI 14700)
Est. %0.3
Function
Origin
Red 4 (CI 14700)A synthetic dye that is also known as FD&C Red No. 4. This colorant produces a warm red hue that has an orange or yellow undertone.
Blue 1 (CI 42090)
Est. %0.3
Function
Origin
Blue 1 (CI 42090)A synthetic dye commonly known as Brilliant Blue FCF that produces rich blue colors for various cosmetic uses. FD&C Blue #1 can also be found in foods, medications, and dietary supplements, as it is considered non-toxic and safe for use.
Sodium Hydroxide
Est. %0.3
Function
Origin
Sodium Hydroxide

An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.

Citric Acid
Est. %0.3
Function
Origin
Citric AcidA gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent.