Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant Versus Kiehl's Clearly Corrective Dark Spot Solution
Updated on June 26, 2024
Overview
What they are
These products are both reef safe . They have a total of 4 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
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant 13 ingredients
Kiehl's Clearly Corrective Dark Spot Solution 24 ingredients
At a glance
Click on any of the items below to learn more
Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant 13 ingredients
Kiehl's Clearly Corrective Dark Spot Solution 24 ingredients
Notable Ingredients
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Benefits
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Concerns
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Concerns
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Ingredients Side-by-side
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.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
Preservative 5 Benefits 4 Concerns
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.
Phytosphingosine is a phospholipid naturally found in our skin. It helps moisturize, soothe, and protect skin.
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.
Vitis Vinifera Seed Extract comes from the grape vine. Grape seeds are a byproduct of creating grape juice or wine.
Camellia Oleifera Leaf Extract is the extract of the leaves of Camellia Oleifera, Theaceae.
Bisabolol is pimarily used to add fragrance to a product. However, it is also famous for helping soothe skin.
Tetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
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.
Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
5 Concerns
Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
5 Benefits
You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
Preservative 5 Benefits 4 Concerns
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.
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.
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.
Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Antioxidant Helps brighten skin
Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
EU Allergen
Lavandula Angustifolia Oil is more commonly known as lavender essential oil. Lavandula Angustifolia is known as the English Lavender and famous for creating purple fields in Provence, France.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
2 Concerns
Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Paeonia Suffruticosa Root Extract comes from the Paeonia Suffruticosa plant known as the Peony.
Water, Propylene Glycol, Glycerin, Alcohol Denat., Peg/Ppg/Polybutylene Glycol-8/5/3 Glycerin, Hydroxypropyl Tetrahydropyrantriol, 3-O-Ethyl Ascorbic Acid, Ppg-6-Decyltetradeceth-30, Phenoxyethanol, Salicylic Acid, Xanthan Gum, Hydroxyethylcellulose, Potassium Hydroxide, Citric Acid, Sodium Citrate, Tocopheryl Acetate, Lavandula Angustifolia Oil, Disodium EDTA, Adenosine, Linalool, Butylene Glycol, Tocopherol, Citrus Aurantium Tachibana Peel Extract, Paeonia Suffruticosa Root Extract
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterButylene 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.
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 AcidHydroxyethylcellulose 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 HydroxyethylcelluloseIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant 13 ingredients
Kiehl's Clearly Corrective Dark Spot Solution 24 ingredients
Reviews
Here's what our community thinks
Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant 13 ingredients
MichelleR
I started using this product during the day and layering it under my sunscreen. It wasn't bad for that, but I just find using it at night is much...
I started using this product during the day and layering it under my sunscreen. It wasn't bad for that, but I just find using it at night is much more effective. It is a thick enough consistency that it can go on as the last layer of a night-time routine and act as an overnight mask.
I love the BHA liquid exfoliant and use that during the day now, due to its quick absorption. I am not able to use the BHA lotion exfoliant at all, due to my Dimethicone allergy. The gel and liquid products are my GO TO products when i'm battling a break out. I literally wake up with better skin.
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Kiehl's Clearly Corrective Dark Spot Solution 24 ingredients
MSP
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
