Aesop Equalising Shampoo Versus Kiehl's Amino Acid Shampoo
Updated on March 05, 2025
Overview
What they are
These products are both vegan and reef safe shampoos. They have a total of 5 ingredients in common
Cool Features
They both contain AHA
Suited For
They're both likely to be good for dry skin, brightening skin, oily skin, reducing pores, scar healing and better texture
Free From
They both do not contain any parabens or silicones
What's Inside
They both contain common allergens, fragrances, oils and sulfates
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
Aesop Equalising Shampoo 29 ingredients
Kiehl's Amino Acid Shampoo 24 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Aesop Equalising Shampoo 29 ingredients
Kiehl's Amino Acid Shampoo 24 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningSodium Laureth Sulfate
Cleansing
Cocamidopropyl Hydroxysultaine
CleansingSodium Cocoamphoacetate
CleansingOlive Oil PEG-7 Esters
Emollient
Sodium Chloride
Masking
PEG-40 Hydrogenated Castor Oil
Emulsifying
Phenoxyethanol
Preservative
Propylene Glycol
Humectant
Citric Acid
Buffering
Salvia Officinalis Oil
Masking
Sodium Dehydroacetate
Preservative
Alcohol Denat.
Antimicrobial
Eucalyptus Globulus Leaf Oil
Perfuming
Cedrus Atlantica Bark Oil
Masking
Mentha Citrata Leaf Extract
Astringent
Mentha Piperita Oil
Masking
Rosmarinus Officinalis Leaf Oil
Masking
Juniperus Communis Fruit Oil
Masking
Melaleuca Alternifolia Leaf Oil
Antioxidant
Achillea Millefolium Extract
CleansingChamomilla Recutita Flower Extract
Masking
Foeniculum Vulgare Fruit Extract
EmollientHumulus Lupulus Extract
AntimicrobialMelissa Officinalis Flower/Leaf/Stem Extract
SoothingViscum Album Leaf Extract
SoothingPotassium Sorbate
Preservative
Linalool
Perfuming
Limonene
Perfuming
Water, Sodium Laureth Sulfate, Cocamidopropyl Hydroxysultaine, Sodium Cocoamphoacetate, Olive Oil PEG-7 Esters, Sodium Chloride, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Propylene Glycol, Citric Acid, Salvia Officinalis Oil, Sodium Dehydroacetate, Alcohol Denat., Eucalyptus Globulus Leaf Oil, Cedrus Atlantica Bark Oil, Mentha Citrata Leaf Extract, Mentha Piperita Oil, Rosmarinus Officinalis Leaf Oil, Juniperus Communis Fruit Oil, Melaleuca Alternifolia Leaf Oil, Achillea Millefolium Extract, Chamomilla Recutita Flower Extract, Foeniculum Vulgare Fruit Extract, Humulus Lupulus Extract, Melissa Officinalis Flower/Leaf/Stem Extract, Viscum Album Leaf Extract, Potassium Sorbate, Linalool, Limonene
Water
Skin ConditioningSodium Methyl Cocoyl Taurate
Cleansing
Sodium Coco-Sulfate
Cleansing
Sodium Chloride
Masking
Coco-Betaine
CleansingLactic Acid
Buffering
Parfum
Masking
PPG-5-Ceteth-20
EmulsifyingSodium Lauroyl Glutamate
Propylene Glycol
Humectant
PEG-55 Propylene Glycol Oleate
Salicylic Acid
Masking
Benzoic Acid
Masking
Guar Hydroxypropyltrimonium Chloride
Skin ConditioningCoconut Alcohol
EmollientSodium Sulfate
Cocos Nucifera Oil
Masking
Coumarin
Perfuming
Wheat Amino Acids
Skin ConditioningFumaric Acid
BufferingHydroxypropyltrimonium Hydrolyzed Wheat Protein
Skin ConditioningPhenoxyethanol
Preservative
Disodium EDTA
Potassium Sorbate
Preservative
Water, Sodium Methyl Cocoyl Taurate, Sodium Coco-Sulfate, Sodium Chloride, Coco-Betaine, Lactic Acid, Parfum, PPG-5-Ceteth-20, Sodium Lauroyl Glutamate, Propylene Glycol, PEG-55 Propylene Glycol Oleate, Salicylic Acid, Benzoic Acid, Guar Hydroxypropyltrimonium Chloride, Coconut Alcohol, Sodium Sulfate, Cocos Nucifera Oil, Coumarin, Wheat Amino Acids, Fumaric Acid, Hydroxypropyltrimonium Hydrolyzed Wheat Protein, Phenoxyethanol, Disodium EDTA, Potassium Sorbate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Potassium 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 SorbatePropylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Another role of this ingredient is preventing a product from melting or freezing. Propylene glycol also adds antimicrobrial properties to a product, elongating product lifespan.
This ingredient is considered an organic alcohol and commonly added into both cosmetics and foods.
Those with sensitive skin or conditions may develop a rash when using this ingredient.
Learn more about Propylene GlycolChances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
This ingredient has many purposes in skincare: thickener, emulsifier, and exfoliator.
You'll most likely find this ingredient in cleansers where it is used to create a gel-like texture. As an emulsifier, it also prevents ingredients from separating.
There is much debate on whether this ingredient is comedogenic. The short answer - comedogenic ratings don't tell the whole story. Learn more about comegodenic ratings here.
The concensus about this ingredient causing acne seems to be divided. Research is needed to understand if this ingredient does cause acne.
Scrubs may use salt as the primary exfoliating ingredient.
Learn more about Sodium ChlorideWater. 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 WaterIngredient Ratings
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