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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Boots Skin Clear 2 Hour Spot Gel versus Kiehl's Clearly Corrective™ Dark Spot Solution .

Last updated on October 01, 2023. Published on November 14, 2023

Overview

What they are

These products are both fungal acne (malassezia) safe and reef safe facial treatments. They have a total of 7 ingredients in common

Cool Features

They both contain BHA

Suited For

They're both likely to be good for fighting acne, brightening skin, oily skin, reducing pores and scar healing

Free From

They both do not contain any parabens, silicones or sulfates

What's Inside

They both contain harsh alcohols

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

Facial Treatment British Brand United Kingdom
Facial Treatment American Brand United States

Facial Treatment

Facial treatments are specially designed to treat a skin concern. Acne treatments and anti-aging products are common examples of facial treatments.

Facial Treatment

Facial treatments are specially designed to treat a skin concern. Acne treatments and anti-aging products are common examples of facial treatments.

Price

Shop

Buy Skin Clear 2 Hour Spot Gel

Shop

Buy Clearly Corrective™ Dark Spot Solution

Starts at $71.50

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

BHA

Benefits

Good For Oily Skin
Reduces Large Pores
Scar Healing
Acne Fighting
Brightening

Concerns

Drying (2)
May Worsen Oily Skin
Irritating (2)
Rosacea (2)
Eczema (2)

Notable Ingredients

BHA
Vitamin C
Vitamin E (2)

Benefits

Hydrating
Good For Oily Skin
Redness Reducing
Skin Texture
Reduces Large Pores
Anti-Aging (2)
Dark Spots
Scar Healing (3)
Acne Fighting
Brightening (4)

Concerns

Drying (2)
May Worsen Oily Skin
Irritating (3)
Rosacea (2)
Eczema (3)
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Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

Learn more about what what Com. / Irr. ratings are

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Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

Boots Skin Clear 2 Hour Spot Gel contains this as ingredient number 1.

Kiehl's Clearly Corrective™ Dark Spot Solution contains this as ingredient number 1.

2
What it does: Antimicrobial, Astringent, Masking, Solvent
Community Rating: Very Disliked

Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol and other additives. It has a low molecular weight and will evaporate quickly. This helps other ingredients become better absorbed and dry once applied.

Alcohol Denat. is volatile and may cause irritation. It helps draw out natural oils in skin and dry out your skin.

One study from 2005 found adding emollients to propanol-based sanitizer decreased irritation.

Alcohol is antibacterial by nature. This can help preserve products and increase their shelf life.

Other types of astringent alcohols include:

Learn more about Alcohol Denat.

Boots Skin Clear 2 Hour Spot Gel contains this as ingredient number 2.

Kiehl's Clearly Corrective™ Dark Spot Solution contains this as ingredient number 4.

3
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

Boots Skin Clear 2 Hour Spot Gel contains this as ingredient number 3.

Kiehl's Clearly Corrective™ Dark Spot Solution contains this as ingredient number 21.

4
What it does: Masking, Preservative, Skin Conditioning
Community Rating: Liked

Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.

This multitasking property makes it a great ingredient for cleaning out pores, controlling oil production, and reducing inflammation.

Unlike AHAs which are water soluble, Salicylic Acid is oil soluble. This means that it's able to exfoliate the inside of pores and reduce blackheads.

Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.

It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing a Salicylic Acid into your routine.

In general, Salicylic Acid is a great ingredient for oily acne-prone skin.

While salicylic acid does not increase sun-sensitivity, we still recommend wearing SPF.

If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.

Learn more about Salicylic Acid

Boots Skin Clear 2 Hour Spot Gel contains this as ingredient number 4.

Kiehl's Clearly Corrective™ Dark Spot Solution contains this as ingredient number 10.

5
What it does: Buffering, Masking
Community Rating: Mixed

Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.

Sodium Citrate helps maintain the pH of a product. Normal pH level of skin is slightly acidic (~4.75-5.5). The acidity of our skin is maintained by our glands and skin biome. Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.

Sodium Citrate is a chelating agent. It neutralizes metal ions from water and prevents them from binding to other ingredients. This ensures the other ingredients will not be altered.

Learn more about Sodium Citrate

Boots Skin Clear 2 Hour Spot Gel contains this as ingredient number 5.

Kiehl's Clearly Corrective™ Dark Spot Solution contains this as ingredient number 15.

6
What it does: Emulsion Stabilising, Stabilising
Community Rating: Mixed

Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.

Hydroxyethylcellulose helps stabilize products by preventing ingredients from separating. It can also help thicken the texture of a product.

This ingredient can also be found in pill medicines to help our bodies digest other ingredients.

Learn more about Hydroxyethylcellulose

Boots Skin Clear 2 Hour Spot Gel contains this as ingredient number 6.

Kiehl's Clearly Corrective™ Dark Spot Solution contains this as ingredient number 12.

7
What it does: Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
Community Rating: Disliked

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

Learn more about Xanthan Gum

Boots Skin Clear 2 Hour Spot Gel contains this as ingredient number 7.

Kiehl's Clearly Corrective™ Dark Spot Solution contains this as ingredient number 11.

Here's what our community thinks of the ingredients in these two products.

25% are loved or liked
38% have mixed ratings
25% are disliked or very disliked
13% have no rating yet
33% are loved or liked
13% have mixed ratings
42% are disliked or very disliked
13% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

Boots Skin Clear 2 Hour Spot Gel 8 ingredients

4.0 /5
from 1 rating

Kiehl's Clearly Corrective™ Dark Spot Solution 24 ingredients

5.0 /5
from 1 rating
MSP's avatar

MSP

11 months ago · Combination Skin
Review

Works as said
I have dark skin and lots of PIH. It lightens them. You can see quicker results with new PIH spots. Holygrail in my routine

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