Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Proactiv Deep Cleansing Wash Versus Paula's Choice Clear Pore Normalizing Cleanser

Proactiv Deep Cleansing Wash Versus Paula's Choice Clear Pore Normalizing Cleanser This cream cleanser uses mild cleansing ingredients, but contains alcohol that may feel drying for some. This salicylic acid gel cleanser is formulated around Salicylic Acid to

Proactiv Deep Cleansing Wash Versus Paula's Choice Clear Pore Normalizing Cleanser

This cream cleanser uses mild cleansing ingredients, but contains alcohol that may feel drying for some.

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

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Cocamidopropyl Betaine

Distearyl Phthalic Acid Amide

Paraffin

Stearyl Alcohol

Cetyl Alcohol

Jojoba Esters

Sodium Chloride

Sodium Methyl Cocoyl Taurate

Aloe Barbadensis Leaf Juice

Camellia Sinensis Leaf Extract

Coconut Acid

Menthol

PEG-120 Methyl Glucose Dioleate

Caprylyl Glycol

Hexylene Glycol

Ethylhexylglycerin

Ascorbic Acid

Citric Acid

Butylene Glycol

Disodium EDTA

Isopropyl Alcohol

Sodium Hydroxide

Phenoxyethanol

Sodium Benzoate

Sodium Sulfite

Potassium Sorbate

Parfum

Chromium Hydroxide Green

Water, Cocamidopropyl Betaine, Distearyl Phthalic Acid Amide, Paraffin, Stearyl Alcohol, Cetyl Alcohol, Jojoba Esters, Sodium Chloride, Sodium Methyl Cocoyl Taurate, Aloe Barbadensis Leaf Juice, Camellia Sinensis Leaf Extract, Coconut Acid, Menthol, PEG-120 Methyl Glucose Dioleate, Caprylyl Glycol, Hexylene Glycol, Ethylhexylglycerin, Ascorbic Acid, Citric Acid, Butylene Glycol, Disodium EDTA, Isopropyl Alcohol, Sodium Hydroxide, Phenoxyethanol, Sodium Benzoate, Sodium Sulfite, Potassium Sorbate, Parfum, Chromium Hydroxide Green

Salicylic Acid

Sodium Lauroyl Sarcosinate

Acrylates/Steareth-20 Methacrylate Copolymer

Glycerin

PEG-200 Hydrogenated Glyceryl Palmate

Sodium Laureth Sulfate

Arginine

PEG-7 Glyceryl Cocoate

Panthenol

PEG-60 Hydrogenated Castor Oil

Sodium Citrate

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

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.

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.

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).

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%.

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.

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 Side-by-side

  1. 01Water
  2. 02Methylpropanediol
  3. 03Butylene Glycol
  4. 04Polysorbate 20
  5. 05Salicylic Acid
  6. 06Phytosphingosine
  7. 07Hydroxyethylcellulose
  8. 08Vitis Vinifera Seed Extract
  9. 09Camellia Oleifera Leaf Extract
  10. 10Epilobium Angustifolium Extract
  11. 11Bisabolol
  12. 12Tetrasodium EDTA
  13. 13Sodium Hydroxide
  14. 14Water, Methylpropanediol, Butylene Glycol, Polysorbate 20, Salicylic Acid, Phytosphingosine, Hydroxyethylcellulose, Vitis Vinifera Seed Extract, Camellia Oleifera Leaf Extract, Epilobium Angustifolium Extract, Bisabolol, Tetrasodium EDTA, Sodium Hydroxide
  15. 15Glycerin
  16. 16Niacinamide
  17. 17Salix Nigra Bark Extract
  18. 18Zinc Gluconate
  19. 19Sodium Hyaluronate
  20. 20Aesculus Hippocastanum Seed Extract
Source · skinsort.com
02

Product index

Related product references

03

Comparison edit

Read side by side