Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

The INKEY List Salicylic Acid Cleanser Versus IMAGE skincare Clear Cell Clarifying Salicylic Tonic

The INKEY List Salicylic Acid Cleanser Versus IMAGE skincare Clear Cell Clarifying Salicylic Tonic This salicylic acid gel cleanser is formulated around Salicylic Acid to clear breakouts and unclog pores. This acne toner is formulated around Glycolic Acid and

The INKEY List Salicylic Acid Cleanser Versus IMAGE skincare Clear Cell Clarifying Salicylic Tonic

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

This acne toner is formulated around Glycolic Acid and Salicylic Acid to clear breakouts and balance excess oil.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Propanediol

Glycerin

Sodium Methyl Cocoyl Taurate

Cocamidopropyl Betaine

PEG-120 Methyl Glucose Dioleate

Salicylic Acid

PEG-150 Pentaerythrityl Tetrastearate

PEG-6 Caprylic/Capric Glycerides

Betaine

Zinc PCA

Phenoxyethanol

Sodium Chloride

Allantoin

Sodium Hydroxide

Coco-Glucoside

Glyceryl Oleate

Benzyl Alcohol

Coconut Acid

Ethylhexylglycerin

Sodium Benzoate

Citric Acid

Dehydroacetic Acid

Trisodium Ethylenediamine Disuccinate

Tocopherol

Hydrogenated Palm Glycerides Citrate

Water, Propanediol, Glycerin, Sodium Methyl Cocoyl Taurate, Cocamidopropyl Betaine, PEG-120 Methyl Glucose Dioleate, Salicylic Acid, PEG-150 Pentaerythrityl Tetrastearate, PEG-6 Caprylic/Capric Glycerides, Betaine, Zinc PCA, Phenoxyethanol, Sodium Chloride, Allantoin, Sodium Hydroxide, Coco-Glucoside, Glyceryl Oleate, Benzyl Alcohol, Coconut Acid, Ethylhexylglycerin, Sodium Benzoate, Citric Acid, Dehydroacetic Acid, Trisodium Ethylenediamine Disuccinate, Tocopherol, Hydrogenated Palm Glycerides Citrate

Alcohol Denat.

Polysorbate 20

Hamamelis Virginiana Water

Glycolic Acid

Propylene Glycol

Alcohol

Caprylyl Glycol

Hexylene Glycol

Sodium Phytate

Camellia Sinensis Leaf Extract

Arnica Montana Flower Extract

Eucalyptus Globulus Leaf Oil

Cinnamomum Camphora Bark Oil

Melaleuca Alternifolia Leaf Oil

Limonene

Anthemis Nobilis Flower Extract

Aesculus Hippocastanum Extract

Maltodextrin

Butylene Glycol

Syringa Vulgaris Extract

Potassium Sorbate

Boswellia Serrata Extract

Mel Extract

Oryza Sativa Bran Extract

Oligopeptide-10

Water, Alcohol Denat., Glycerin, Polysorbate 20, Hamamelis Virginiana Water, Glycolic Acid, Propylene Glycol, Salicylic Acid, Sodium Hydroxide, Alcohol, Phenoxyethanol, Caprylyl Glycol, Ethylhexylglycerin, Hexylene Glycol, Sodium Phytate, Camellia Sinensis Leaf Extract, Arnica Montana Flower Extract, Eucalyptus Globulus Leaf Oil, Cinnamomum Camphora Bark Oil, Melaleuca Alternifolia Leaf Oil, Limonene, Anthemis Nobilis Flower Extract, Aesculus Hippocastanum Extract, Maltodextrin, Butylene Glycol, Syringa Vulgaris Extract, Sodium Benzoate, Potassium Sorbate, Boswellia Serrata Extract, Mel Extract, Oryza Sativa Bran Extract, Oligopeptide-10

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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.

Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:

The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

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.

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.

Salicylic Acid (also known as beta hydroxy acid or BHA) is a well-known ingredient for treating skin that struggles with acne and clogged pores. It exfoliates both the skin's surface and deep within the pores to help clear out buildup, control oil, and reduce inflammation.

Unlike AHAs (alpha hydroxy acids), salicylic acid is oil-soluble. This allows it to penetrate into pores which makes it especially effective for treating blackheads and preventing future breakouts.

Salicylic acid is also known for its soothing properties. It has a similar structure to aspirin and can calm inflamed or irritated skin, making it a good option for acne-prone skin that is also sensitive.

Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.

It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing this ingredient into your routine.

While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.

If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

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 Side-by-side

  1. 01Water
  2. 02Butylene Glycol
  3. 03Glycerin
  4. 04Ascorbyl Glucoside
  5. 05Tranexamic Acid
  6. 06Euterpe Oleracea Fruit Extract
  7. 071-Methylhydantoin-2-Imide
  8. 08Sodium Acrylates Copolymer
  9. 09Phenoxyethanol
  10. 10Carbomer
  11. 11Sodium Hydroxide
  12. 12Cetearyl Olivate
  13. 13Benzyl Alcohol
  14. 14Sorbitan Olivate
  15. 15Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
  16. 16Lecithin
  17. 17Squalane
  18. 18Ethylhexylglycerin
  19. 19Sodium Gluconate
  20. 20Polysorbate 60
Source · skinsort.com
02

Product index

Related product references

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The Inkey List Alpha Arbutin Serum

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03

Comparison edit

Read side by side