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The INKEY List Apple Cider Vinegar Acid Peel Versus Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant

The INKEY List Apple Cider Vinegar Acid Peel Versus Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant This smoothing treatment is formulated around Glycolic Acid and Salix Alba Bark Extract to refine skin texture and brighten dull-looking skin. This smoot

By Peptide Skincare & Beauty Editorial TeamPublished

The INKEY List Apple Cider Vinegar Acid Peel Versus Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant

This smoothing treatment is formulated around Glycolic Acid and Salix Alba Bark Extract to refine skin texture and brighten dull-looking skin.

This smoothing exfoliator is formulated around Salicylic Acid to refine skin texture and refine the look of pores.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycolic Acid

Glycerin

Caprylyl/Capryl Glucoside

Polysorbate 20

Vaccinium Myrtillus Fruit Extract

Acetum

Sodium Hydroxide

Propanediol

Xanthan Gum

Saccharum Officinarum Extract

Lactobacillus

Phenoxyethanol

Hippophae Rhamnoides Fruit Oil

Salix Alba Bark Extract

Maltodextrin

Citrus Aurantium Dulcis Fruit Extract

Citrus Limon Fruit Extract

Citronellyl Methylcrotonate

Acer Saccharum Extract

Ethylhexylglycerin

Leuconostoc/Radish Root Ferment Filtrate

Biosaccharide Gum-1

Phytic Acid

Agastache Mexicana Flower/Leaf/Stem Extract

Water, Glycolic Acid, Glycerin, Caprylyl/Capryl Glucoside, Polysorbate 20, Vaccinium Myrtillus Fruit Extract, Acetum, Sodium Hydroxide, Propanediol, Xanthan Gum, Saccharum Officinarum Extract, Lactobacillus, Phenoxyethanol, Hippophae Rhamnoides Fruit Oil, Salix Alba Bark Extract, Maltodextrin, Citrus Aurantium Dulcis Fruit Extract, Citrus Limon Fruit Extract, Citronellyl Methylcrotonate, Acer Saccharum Extract, Ethylhexylglycerin, Leuconostoc/Radish Root Ferment Filtrate, Biosaccharide Gum-1, Phytic Acid, Agastache Mexicana Flower/Leaf/Stem Extract

Methylpropanediol

Butylene Glycol

Salicylic Acid

Camellia Oleifera Leaf

Tetrasodium EDTA

Water, Methylpropanediol, Butylene Glycol, Salicylic Acid, Polysorbate 20, Camellia Oleifera Leaf, Sodium Hydroxide, Tetrasodium EDTA

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Alternatives

Ingredients Explained

These ingredients are found in both products.

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

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.

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.

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!

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

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Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 03Betaine is a humectant. Like hyaluronic acid, it helps attract and retain moisture in the skin. It’s known for being gentle and for helping the skin maintain balanced hydration.
  4. 04Betaine is mainly used to improve hydration and support calmer skin. It helps skin cells regulate water balance because it functions as an osmolyte.
  5. 05Some studies suggest betaine may support making skin tone more even.
  6. 06Fun fact: Betaine naturally exists in the skin and the body. In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability.
  7. 07Betaine is also known as trimethylglycine.
  8. 08Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  9. 09Topically, glycerin does several things at once:
  10. 10Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
  11. 11Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
  12. 12This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
  13. 13Just know very high concentrations (>40%) can feel tacky in low humidity.
  14. 14Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
  15. 15Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
  16. 16It’s often used to:
  17. 17Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
  18. 18Water. 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.
  19. 19So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
  20. 20You'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!
Source · skinsort.com ⟶
02

Product index

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Comparison edit

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