COSRX AHA 7 Whitehead Power Liquid Versus Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant - US
Updated on June 17, 2025
Overview
What they are
These products are both vegan, cruelty-free, and reef safe . They have a total of 2 ingredients in common
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, oily skin and reducing pores
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, oils, 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
COSRX AHA 7 Whitehead Power Liquid 10 ingredients
Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant 8 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
COSRX AHA 7 Whitehead Power Liquid 10 ingredients
Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant 8 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
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.
Learn more about Butylene GlycolSodium 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.
Learn more about Sodium HydroxideIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
COSRX AHA 7 Whitehead Power Liquid 10 ingredients
Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant 8 ingredients
Reviews
Here's what our community thinks
