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Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Paula's Choice 8% AHA Lotion Exfoliant

Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Paula's Choice 8% AHA Lotion Exfoliant This smoothing exfoliator is formulated around Salicylic Acid to refine skin texture and refine the look of pores. This smoothing exfoliator is formulated arou

By Peptide Skincare & Beauty Editorial TeamPublished

Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Paula's Choice 8% AHA Lotion Exfoliant

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

This smoothing exfoliator is formulated around Glycolic Acid to refine skin texture and brighten dull-looking skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Methylpropanediol

Butylene Glycol

Salicylic Acid

Polysorbate 20

Camellia Oleifera Leaf Extract

Sodium Hydroxide

Tetrasodium EDTA

Phenoxyethanol

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

Glycolic Acid

Caprylic/Capric Triglyceride

Glycerin

Beheneth-5

Dimethicone

Neopentyl Glycol Dicaprylate/Dicaprate

Polyglyceryl-3 Stearate

Behenyl Alcohol

Undecane

Arachidyl Alcohol

Stearyl Alcohol

Cetyl Alcohol

Phospholipids

Allantoin

Tocopheryl Acetate

Chamomilla Recutita Flower Extract

Helianthus Annuus Seed Oil

Bisabolol

Arctium Lappa Seed Oil

Dipotassium Glycyrrhizate

Panthenol

Sodium Acrylates Copolymer

Tridecane

Hydrogenated Polydecene

Sclerotium Gum

Polyglyceryl-10 Stearate

Disodium EDTA

Tocopherol

Chlorphenesin

Benzoic Acid

Sorbic Acid

Ethylhexylglycerin

Water, Glycolic Acid, Caprylic/Capric Triglyceride, Glycerin, Sodium Hydroxide, Beheneth-5, Dimethicone, Neopentyl Glycol Dicaprylate/Dicaprate, Polyglyceryl-3 Stearate, Behenyl Alcohol, Undecane, Arachidyl Alcohol, Stearyl Alcohol, Cetyl Alcohol, Phospholipids, Allantoin, Tocopheryl Acetate, Chamomilla Recutita Flower Extract, Helianthus Annuus Seed Oil, Bisabolol, Arctium Lappa Seed Oil, Dipotassium Glycyrrhizate, Panthenol, Sodium Acrylates Copolymer, Tridecane, Hydrogenated Polydecene, Sclerotium Gum, Polyglyceryl-10 Stearate, Disodium EDTA, Tocopherol, Chlorphenesin, Benzoic Acid, Sorbic Acid, Ethylhexylglycerin, Phenoxyethanol

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.

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.

On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.

Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.

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.

01

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. 03Ascorbic Acid is is pure Vitamin C and is the biologically active form used directly by skin.
  4. 04Not only is vitamin C great for your overall health and immune system, but it also has plenty of benefits for your skin. It is best supported by academic literature for:
  5. 05Topical vitamin C has been shown to help neutralize oxidative stress from UV and pollution, helping to improve photoaging and hyperpigmentation when used consistently.
  6. 06One clinical study found that using 5% topical vitamin C for six months improved signs of photodamaged skin, both on the surface and in the deeper structural layers of the skin.
  7. 07While vitamin C doesn’t replace sunscreen, studies show it can boost photoprotection when combined with Vitamin E and ferulic acid. These two ingredients help improve stability and protective effects.
  8. 08The big downside of this ingredient is formulation difficulty. Vitamin C is prone to oxidation and doesn't penetrate the skin unless formulated correctly. Research found that vitamin C absorbs into the skin best at a low pH (< 3.5) with about 20% be…
  9. 09Skin levels can saturate after repeated application; this means your skin won’t keep absorbing more once it’s full of vitamin C. This is why more isn’t always better with vitamin C and why very high concentrations don’t necessarily give extra benefits.
  10. 10Ascorbic acid generally works well with many skincare ingredients but can be irritating when combined with other active ingredients. Strong oxidizing acne treatments like benzoyl peroxide can reduce the effectiveness of vitamin C if they are used at…
  11. 11Read more about other types of Vitamin C:
  12. 12Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.
  13. 13Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.
  14. 14What it does:
  15. 15Dimethicone comes in different viscosities:
  16. 16Depending on the viscosity, dimethicone has different properties.
  17. 17Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
  18. 18This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
  19. 19Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
  20. 20Polysilicone-11 is a film-forming silicone that creates a non-tacky and matte finish on the skin. It's commonly used to improve texture, absorb excess oil, and help active ingredients spread evenly.
Source · skinsort.com ⟶
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