Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Paula's Choice Clear Pore Normalizing Cleanser Versus Curology The Cleanser

Paula's Choice Clear Pore Normalizing Cleanser Versus Curology The Cleanser This salicylic acid gel cleanser is formulated around Salicylic Acid to clear breakouts and unclog pores. This mild gel cleanser is made to cleanse without leaving your skin tight or d

Paula's Choice Clear Pore Normalizing Cleanser Versus Curology The Cleanser

This salicylic acid gel cleanser is formulated around Salicylic Acid to clear breakouts and unclog pores.

This mild gel cleanser is made to cleanse without leaving your skin tight or dry.

What's inside

Key Ingredients

No key ingredients

Benefits

Concerns

Ingredients Side-by-side

Salicylic Acid

Water

Sodium Lauroyl Sarcosinate

Acrylates/Steareth-20 Methacrylate Copolymer

Glycerin

PEG-200 Hydrogenated Glyceryl Palmate

Sodium Laureth Sulfate

Arginine

Butylene Glycol

PEG-7 Glyceryl Cocoate

Panthenol

Disodium EDTA

Citric Acid

PEG-60 Hydrogenated Castor Oil

Sodium Citrate

Phenoxyethanol

Caprylyl Glycol

Chlorphenesin

Salicylic Acid, Water, Sodium Lauroyl Sarcosinate, Acrylates/Steareth-20 Methacrylate Copolymer, Glycerin, PEG-200 Hydrogenated Glyceryl Palmate, Sodium Laureth Sulfate, Arginine, Butylene Glycol, PEG-7 Glyceryl Cocoate, Panthenol, Disodium EDTA, Citric Acid, PEG-60 Hydrogenated Castor Oil, Sodium Citrate, Phenoxyethanol, Caprylyl Glycol, Chlorphenesin

Acrylates Copolymer

Cocamidopropyl Hydroxysultaine

Sodium Cocoyl Isethionate

Xylitylglucoside

Propanediol

Coco-Glucoside

Anhydroxylitol

Stearic Acid

1,2-Hexanediol

Xylitol

Coconut Alcohol

PEG-150 Pentaerythrityl Tetrastearate

Stearyl Alcohol

Sodium Hydroxide

Sodium Chloride

Caprylhydroxamic Acid

Xanthan Gum

Potassium Sorbate

Avena Sativa Leaf Extract

Water, Acrylates Copolymer, Cocamidopropyl Hydroxysultaine, Sodium Cocoyl Isethionate, Xylitylglucoside, Propanediol, Coco-Glucoside, Anhydroxylitol, Stearic Acid, 1,2-Hexanediol, Xylitol, Panthenol, Coconut Alcohol, Citric Acid, PEG-150 Pentaerythrityl Tetrastearate, Stearyl Alcohol, Glycerin, Sodium Hydroxide, Sodium Chloride, Caprylhydroxamic Acid, Disodium EDTA, Xanthan Gum, Potassium Sorbate, Avena Sativa Leaf Extract

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.

Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.

Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.

However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.

Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.

In skincare formulas, citric acid can:

While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.

Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.

Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.

However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.

Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.

This ingredient mainly works behind the scenes and helps with:

On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.

One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).

Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.

You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your 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.

Aquaporin-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.

This 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.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

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. 03Tocopheryl Acetate is a stable, shelf-friendly form of vitamin E.
  4. 04Formulators love it because plain vitamin E oxidizes quickly once it hits air. This acetate version stays stable and resists going off, helping to extend a product's shelf life.
  5. 05It's actually inactive on its own and works like a slow-release "storage" form; the enzymes in your skin called esterases gradually convert it into active vitamin E over time.
  6. 06One in vivo study showed 5% of the acetate in the living layer of the epidermis converted to vitamin E after 5 days of application. This study also found the skin gained protection against UV damage even though the conversion was slow and small.
  7. 07Once converted, vitamin E acts as a skin's main fat-soluble antioxidant that fights free radicals to protect skin from damage.
  8. 08Topical vitamin E generally boosts the skin's photoprotection, and it reduced UV-damage in animal models.
  9. 09This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
  10. 10Overall, it has a pretty solid safety profile and has been found to be non-irritating and non-comedogenic. Allergic reactions may happen but stay rare due to how widely the ingredient gets used.
  11. 11The concentration will vary depending on the formula; industry data shows 0.1% in baby lotions, 3% in lipsticks, and 5% in foot powders. You can also find this ingredient at 100% in a pure vitamin E oil.
  12. 12Most leave-on skincare keeps it at the lower end, often between 0.5-1%.
  13. 13Water. 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.
  14. 14So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
  15. 15You'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

Related product references

Product

Paula's Choice Omega+ Complex Serum

Paula's Choice Omega+ Complex Serum Paula's Choice Omega+ Complex Serum ingredients explained: Glycerin⁠, Linseed Seed Oil⁠, Linoleic Acid⁠, Passiflora Edulis Seed Oil⁠, Salvia Hispanica (C…

Source: incidecoder.comView reference →

Product

Paula's Choice Shine Stopper

Paula's Choice Shine Stopper Paula's Choice Shine Stopper ingredients explained: Aqua, Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer (Film-Forming Agent/Absorbent Polymer), Capryli…

Source: incidecoder.comView reference →
03

Comparison edit

Read side by side