Skin science article
Walgreens 2% BHA Liquid Exfoliant With Salicylic Acid Versus Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant
Walgreens 2% BHA Liquid Exfoliant With Salicylic Acid Versus Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant This smoothing exfoliator is formulated around Salicylic Acid to refine skin texture and clear breakouts. This pore-care exfoliator is formulated a
Walgreens 2% BHA Liquid Exfoliant With Salicylic Acid Versus Paula's Choice Skin Perfecting 2% BHA Gel Exfoliant
This smoothing exfoliator is formulated around Salicylic Acid to refine skin texture and clear breakouts.
This pore-care exfoliator is formulated around Salicylic Acid and Phytosphingosine to refine the look of pores and refine skin texture.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Methylpropanediol
Butylene Glycol
Salicylic Acid
Sodium Hydroxide
Polysorbate 20
Tetrasodium EDTA
Camellia Oleifera Leaf Extract
Phenoxyethanol
Hydroxyacetophenone
Ethylhexylglycerin
Water, Methylpropanediol, Butylene Glycol, Salicylic Acid, Sodium Hydroxide, Polysorbate 20, Tetrasodium EDTA, Camellia Oleifera Leaf Extract, Phenoxyethanol, Hydroxyacetophenone, Ethylhexylglycerin
Phytosphingosine
Hydroxyethylcellulose
Vitis Vinifera Seed Extract
Epilobium Angustifolium Extract
Bisabolol
Water, Methylpropanediol, Butylene Glycol, Polysorbate 20, Salicylic Acid, Phytosphingosine, Hydroxyethylcellulose, Vitis Vinifera Seed Extract, Camellia Oleifera Leaf Extract, Epilobium Angustifolium Extract, Bisabolol, Tetrasodium EDTA, Sodium Hydroxide
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Camellia Oleifera Leaf Extract comes from the leaves of the tea oil plant, the cousin of the green tea plant Camellia Sinensis. This ingredient is mainly added to skincare as a mild skin-conditioning and astringent ingredient.
Early lab studies show it can calm inflammation and slightly inhibit the enzyme that triggers dark spots. Modern studies also show it to have antibacterial and antioxidant effects that support anti-inflammatory use.
There's no dedicated safety review for this ingredient for now, but its cousin Camellia Sinensis has been reviewed and found to be without safety concerns.
Like most botanical extracts, this ingredient carries a low but real chance of contact allergy or mild irritation in sensitive individuals.
Methylpropanediol is a synthetic solvent and humectant.
As a solvent, it helps dissolve other ingredients, helping to evenly distribute ingredients throughout the product. This ingredient has also been shown to have antimicrobial properties which makes it a preservative booster.
Methylpropanediol is able to add a bit of moisture to the skin. It also helps other ingredients be better absorbed into the skin, such as salicylic acid.
Polysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.
It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.
The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.
Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).
True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.
Because it is derived from lauric acid, it may not be fungal acne safe.
Salicylic Acid (also known as beta hydroxy acid or BHA) is a well-known ingredient for treating skin that struggles with acne and clogged pores. It exfoliates both the skin's surface and deep within the pores to help clear out buildup, control oil, and reduce inflammation.
Unlike AHAs (alpha hydroxy acids), salicylic acid is oil-soluble. This allows it to penetrate into pores which makes it especially effective for treating blackheads and preventing future breakouts.
Salicylic acid is also known for its soothing properties. It has a similar structure to aspirin and can calm inflamed or irritated skin, making it a good option for acne-prone skin that is also sensitive.
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 this ingredient into your routine.
While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
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.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
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.
Tetrasodium EDTA comes as a white solid and is soluble in water.
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. Remember to stay hydrated!