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Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Purpose Skin All-Day Multitasker

Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Purpose Skin All-Day Multitasker This smoothing exfoliator is formulated around Salicylic Acid to refine skin texture and refine the look of pores. This brightening serum is formulated around Niacin

Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant Versus Purpose Skin All-Day Multitasker

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

This brightening serum is formulated around Niacinamide and Ascorbyl Methylsilanol Pectinate to brighten dull-looking skin and soften the look of wrinkles.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Methylpropanediol

Butylene Glycol

Salicylic Acid

Polysorbate 20

Camellia Oleifera Leaf

Sodium Hydroxide

Tetrasodium EDTA

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

Niacinamide

Pentylene Glycol

Glycerin

Chamomilla Recutita Flower Extract

Camellia Sinensis Leaf Extract

Ascorbyl Methylsilanol Pectinate

Sodium PCA

PEG-40 Hydrogenated Castor Oil

Aloe Barbadensis Extract

Tocopheryl Acetate

Allantoin

Panthenol

Acetyl Hexapeptide-1

Sodium Hyaluronate

Carbomer

Triethanolamine

Caprylyl Glycol

Ethylhexylglycerin

Water, Niacinamide, Pentylene Glycol, Glycerin, Chamomilla Recutita Flower Extract, Camellia Sinensis Leaf Extract, Ascorbyl Methylsilanol Pectinate, Sodium PCA, PEG-40 Hydrogenated Castor Oil, Aloe Barbadensis Extract, Tocopheryl Acetate, Allantoin, Panthenol, Acetyl Hexapeptide-1, Sodium Hyaluronate, Carbomer, Triethanolamine, Caprylyl Glycol, Ethylhexylglycerin

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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.

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!

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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. 03Also known as Avobenzone, this ingredient is an oil-soluble used to absorb the full spectrum of UVA rays (peak 357 nm).
  4. 04It's one of the most effective UVA filters available but has a major caveat of photostability: avobenzone is susceptible to photodegradation.
  5. 05This means it can lose efficacy when exposed to sunlight without the help of a stabilizing agent.
  6. 06Studies show antioxidants (like vitamin E or vitamin C) and some UV filters (like octocrylene and Tinosorb S) can meaningfully improve its stability in a formulation.
  7. 07The maximum allowable concentration according to regulation is 3% in the US + Canada, and 5% in the EU, Australia, China, Korea, and ASEAN countries.
  8. 08It has a well-support safety profile: a comprehensive 2025 review found minimal toxicity with no evidence of carcinogenicity.
  9. 09Overall, avobenzone is a safe and regulated ingredient used in sunscreen for over 40 years.
  10. 10Ethylhexyl Salicylate (also called Octisalate or Octyl Salicylate) is an oil-soluble organic UV filter that's been used in sunscreen since the 1950's.
  11. 11It absorbs UVB light in the 280-320 nm range with a peak absorbance around 306 nm.
  12. 12You'll often see it paired with other UV filters to boost overall SPF because octisalate is a fairly week filter on its own.
  13. 13The reason you'll see it so often is because it can help solubilize and stabilize the trickier filters like oxybenzone and avobenzone.
  14. 14Unlike these filters, octisalate has pretty good photostability and doesn't create skin-damaging free radicals when exposed to sunlight.
  15. 15The fatty-alcohol part of the molecule also gives it a light, emollient feel so it doubles as a nice texture enhancer.
  16. 16Usage levels vary around the world:
  17. 17Safety-wise, this ingredient has a pretty reassuring track record. The EU's Scientific Committee on Consumer Products (SCCP) found very low skin penetration in human skin tests and negative results for irritation, phototoxicity, and photoallergy.
  18. 18The real-world allergy risk is pretty low too; a 2012 European study of 1,031 people recorded only 2 reactions to it (a rate of 0.19%).
  19. 19You might have seen scary headlines about sunscreen getting into your blood.
  20. 20In 2019, the FDA found that several chemical filters can absorb through the skin and show up in the bloodstream at small but measurable levels.
Source · skinsort.com
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Product index

Related product references

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Comparison edit

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