The Ordinary AHA 30% + BHA 2% Peeling Solution Versus Kiehl's Vital Skin-Strengthening Hyaluronic Acid Super Serum
Updated on October 29, 2024
Overview
What they are
These products are both reef safe . They have a total of 9 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores and scar healing
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
Kiehl's Vital Skin-Strengthening Hyaluronic Acid Super Serum 36 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
Kiehl's Vital Skin-Strengthening Hyaluronic Acid Super Serum 36 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Glycolic Acid
Buffering
Water
Skin ConditioningAloe Barbadensis Leaf Water
MaskingSodium Hydroxide
BufferingDaucus Carota Sativa Extract
Perfuming
Propanediol
SolventCocamidopropyl Dimethylamine
EmulsifyingSalicylic Acid
Masking
Lactic Acid
Buffering
Tartaric Acid
Buffering
Citric Acid
Buffering
Panthenol
Skin Conditioning
Sodium Hyaluronate Crosspolymer
Humectant
Tasmannia Lanceolata Fruit/Leaf Extract
Antioxidant
Glycerin
Humectant
Pentylene Glycol
Skin ConditioningXanthan Gum
EmulsifyingPolysorbate 20
Emulsifying
Trisodium Ethylenediamine Disuccinate
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Ethylhexylglycerin
Skin Conditioning1,2-Hexanediol
Skin ConditioningCaprylyl Glycol
EmollientGlycolic Acid, Water, Aloe Barbadensis Leaf Water, Sodium Hydroxide, Daucus Carota Sativa Extract, Propanediol, Cocamidopropyl Dimethylamine, Salicylic Acid, Lactic Acid, Tartaric Acid, Citric Acid, Panthenol, Sodium Hyaluronate Crosspolymer, Tasmannia Lanceolata Fruit/Leaf Extract, Glycerin, Pentylene Glycol, Xanthan Gum, Polysorbate 20, Trisodium Ethylenediamine Disuccinate, Potassium Sorbate, Sodium Benzoate, Ethylhexylglycerin, 1,2-Hexanediol, Caprylyl Glycol
Water
Skin ConditioningDimethicone
Emollient
Glycerin
Humectant
Alcohol Denat.
Antimicrobial
Hamamelis Virginiana Water
Astringent
Propanediol
SolventPhenoxyethanol
Preservative
Tocopherol
Antioxidant
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingSchisandra Chinensis Fruit Extract
Skin ConditioningCapryloyl Salicylic Acid
Exfoliating
Caprylyl Glycol
EmollientXanthan Gum
EmulsifyingPEG-60 Hydrogenated Castor Oil
Emulsifying
Panax Ginseng Root Extract
Emollient
Sodium Acetylated Hyaluronate
Humectant
PEG-20 Methyl Glucose Sesquistearate
Emulsifying
Disodium EDTA
Ocimum Sanctum Leaf Extract
Skin ConditioningCitrus Aurantium Dulcis Peel Oil
Masking
Limonene
Perfuming
Adenosine
Skin Conditioning
Sodium Hydroxide
BufferingMethyldihydrojasmonate
MaskingCitric Acid
Buffering
Eugenol
Perfuming
Sodium Benzoate
Masking
Pelargonium Graveolens Flower Oil
Masking
Citral
Perfuming
Potassium Sorbate
Preservative
Lavandula Angustifolia Oil
Masking
Cymbopogon Schoenanthus Oil
Masking
Citronellol
Perfuming
Linalool
Perfuming
Geraniol
Perfuming
Rosmarinus Officinalis Leaf Oil
Masking
Water, Dimethicone, Glycerin, Alcohol Denat., Hamamelis Virginiana Water, Propanediol, Phenoxyethanol, Tocopherol, Ammonium Polyacryloyldimethyl Taurate, Schisandra Chinensis Fruit Extract, Capryloyl Salicylic Acid, Caprylyl Glycol, Xanthan Gum, PEG-60 Hydrogenated Castor Oil, Panax Ginseng Root Extract, Sodium Acetylated Hyaluronate, PEG-20 Methyl Glucose Sesquistearate, Disodium EDTA, Ocimum Sanctum Leaf Extract, Citrus Aurantium Dulcis Peel Oil, Limonene, Adenosine, Sodium Hydroxide, Methyldihydrojasmonate, Citric Acid, Eugenol, Sodium Benzoate, Pelargonium Graveolens Flower Oil, Citral, Potassium Sorbate, Lavandula Angustifolia Oil, Cymbopogon Schoenanthus Oil, Citronellol, Linalool, Geraniol, Rosmarinus Officinalis Leaf Oil
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. Stay hydrated!
Learn more about WaterSodium 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.
Learn more about Sodium HydroxidePropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumPotassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateSodium 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.
Learn more about Sodium BenzoateCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
Kiehl's Vital Skin-Strengthening Hyaluronic Acid Super Serum 36 ingredients
Reviews
Here's what our community thinks
The Ordinary AHA 30% + BHA 2% Peeling Solution 24 ingredients
The best exfoliator i ever tried. I think it's the best choice for those who has stubborn blackheads, because it literally melts them away. People with sensitive skin should be cautious, because it's an intense product and maybe too harsh for sensitive and dry skin types. I would highly recommend to use a deeply hydrating mask and restore skin's barrier after the procedure, because as I said Show more
Very good but beware it’s very strong. It says use once or twice a week but I would recommend once very 2 or three weeks. If it’s too strong for you, use the Glycerin Acid Toner 7%. After that don’t put any toner. Pair it up with Hyaluronic acid of your choice and a very moisturizing cream in the night time and you’re all set :)
