Overview
What they are
These products are both cruelty-free and reef safe shampoos. They have a total of 9 ingredients in common
Suited For
They're both likely to be good for dry skin, brightening skin and sensitive skin
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain fragrances and oils
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
Ouai Thick Hair Shampoo 43 ingredients
Necessaire The Shampoo 21 ingredients
At a glance
Click on any of the items below to learn more
Ouai Thick Hair Shampoo 43 ingredients
Necessaire The Shampoo 21 ingredients
Benefits
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Concerns
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Notable Ingredients
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Concerns
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Ingredients Side-by-side
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.
Sodium C14-16 Olefin Sulfonate is a cleansing agent made from a mixture of long chain sulfonate salts. It can also help produce foam.
Cocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine. Dimethylaminopropylamine is a diamine, an amine with two amino groups.
This gentle cleansing and foaming ingredient is known for leaving a smooth feeling in skin and hair. It is made using coconut oil.
Glycol Distearate serves as a pearlizing or opacifying agent in cosmetic products.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
This ingredient is a preservative, antimicrobial, and emulsifier. It is often used in cosmetics for its ability to cleanse, condition, and reduce static.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It can be found naturally in our skin and hair.
Hydrolyzed Keratin is derived from keratin. Keratin is a large protein that is naturally found in our hair and skin.
2 Concerns
Butyrospermum Parkii Butter is a plant lipid from the fruit of the Shea Tree. It is an effective skin hydrator and emollient.
Althaea Officinalis Root Extract is from a plant called the Marsh Mallow plant. This plant is indigenous to Europe, West Asia, and North Africa.
Helps hydrate Dry Skin Not safe for Fungal Acne
Persea Gratissima Oil is made by pressing dehydrated avocado fruit from the tree Persea gratissima, Lauraceae.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
We don't have a description for Hydroxypropyl Guar Hydroxypropyltrimonium Chloride.
Peg-150 Distearate is an emulsifier and thickening agent. It is created from stearic acid.
Polyquaternium-7 is a light to clear colored liquid. It is commonly found in haircare products for its film-forming and anti-static properties.
We don't have a description for Cocoglucosides Hydroxypropyltrimonium Chloride.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
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.
Tetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Peg-200 Hydrogenated Glyceryl Palmate isn't fungal acne safe.
Peg-7 Glyceryl Cocoate is created from polyethylene glycol and fatty acids from coconut oil.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
May worsen Eczema
Benzoic Acid is used to preserve and adjust the pH 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.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.
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.
Fragrance Preservative 6 Concerns
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
EU Allergen
Benzyl Salicylate is a solvent and fragrance additive. It is an ester of benzyl alcohol and salicylic acid. This ingredient can be naturally found in some plants and plant extracts.
Limonene is a fragrance that adds scent and taste to a formulation.
EU Allergen
Hexyl Cinnamal is a fragrance ingredient with a similar scent to jasmine. It can be naturally found in chamomile essential oil.
Ci 15985 is a dye made from petroleum. It is synthetically created and approved by the FDA for use in foods and cosmetics.
Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl Cocoyl Taurate, Cocamide Mipa, Glycol Distearate, Parfum, Cetrimonium Chloride, Panthenol, Hydrolyzed Keratin, Avena Sativa Peptide, Butyrospermum Parkii Butter, Althaea Officinalis Root Extract, Persea Gratissima Oil, Glycerin, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Peg-150 Distearate, Sodium Lauroyl Glycinate, Amodimethicone, C11-15 Pareth-7, Laureth-9, Trideceth-12, Polyquaternium-7, Cocoglucosides Hydroxypropyltrimonium Chloride, Acrylates Copolymer, Sodium Chloride, Sodium Hydroxide, Tetrasodium EDTA, Disodium EDTA, Citric Acid, Peg-200 Hydrogenated Glyceryl Palmate, Peg-7 Glyceryl Cocoate, Caprylyl Glycol, Benzoic Acid, Potassium Sorbate, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, Benzyl Salicylate, Limonene, Hexyl Cinnamal, CI 14700, CI 15985
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.
Sodium Lauroyl Methyl Isethionate is a cleansing ingredient. It is a surfactant, meaning it helps gather dirt, oil, and other pollutants. This helps them be rinsed away easily.
Aloe Barbadensis Leaf Juice comes from leaves of the aloe plant. Aloe Barbadensis Leaf Juice is best known for helping to soothe sunburns. It is also anti-inflammatory, moisturizing, antiseptic, and can help heal wounds.
Cocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine. Dimethylaminopropylamine is a diamine, an amine with two amino groups.
Sodium cocoyl isethionate is a natural ingredient from the fatty acids of coconut oil. It is a surfactant and helps with cleansing the skin.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
6 Benefits
Niacinamide has emerged as an all-star ingredient due to its many benefits.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It can be found naturally in our skin and hair.
Fragrance
Apium Graveolens Seed Extract is an antioxidant and is a fragrance.
Helps hydrate Dry Skin Not safe for Fungal Acne
Persea Gratissima Oil is made by pressing dehydrated avocado fruit from the tree Persea gratissima, Lauraceae.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
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.
Water, Sodium Lauroyl Methyl Isethionate, Aloe Barbadensis Leaf Juice, Cocamidopropyl Betaine, Sodium Methyl Oleoyl Taurate, Sodium Cocoyl Isethionate, Propanediol, Niacinamide, Sodium Hyaluronate, Panthenol, Apium Graveolens Seed Extract, Persea Gratissima Oil, Glycerin, Disodium Cocoyl Glutamate, Caprylic/Capric Triglyceride, Citric Acid, Caprylhydroxamic Acid, Sodium Chloride, 1,2-Hexanediol, Caprylyl Glycol, Sodium Benzoate
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 WaterCocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine. Dimethylaminopropylamine is a diamine, an amine with two amino groups.
Cocamidopropyl Betaine is a surfactant and cleanser. It helps gather the dirt, pollutants, and other impurities in your skin to be washed away. It also helps thicken a product and make the texture more creamy.
Being created from coconut oil means Cocamidopropyl Betaine is hydrating for the skin.
While Cocamidopropyl Betaine was believed to be an allergen, a study from 2012 disproved this. It found two compounds in unpure Cocamidopropyl Betaine to be the irritants: aminoamide and 3-dimethylaminopropylamine. High-grade and pure Cocamidopropyl Betaine did not induce allergic reactions during this study.
Learn more about Cocamidopropyl BetainePanthenol is a common ingredient that helps hydrate and soothe the skin. It can be found naturally in our skin and hair.
This ingredient is also referred to as pro-vitamin B5 or dexpanthenol in dermatology.
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.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
Learn more about PanthenolPersea Gratissima Oil is made by pressing dehydrated avocado fruit from the tree Persea gratissima, Lauraceae.
Avocado Oil has antioxidant properties. Antioxidants help fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
Avocado Oil is mostly made up of the glycerides of fatty acids. About 67% of these fatty acids is made up of oleic acid. Palmitic acid and linoleic acid are also present.
These fatty acids help hydrate and soften the skin. It may increase collagen content in the skin. Collagen helps keep your skin plump and firm.
Avocado Oil reduces inflammation and has not shown to clog glands.
Avocados also have B vitamins, vitamin K, vitamin C, vitamin E, and potassium.
Learn more about Persea Gratissima OilGlycerin 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 GlycerinChances 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 ChlorideCitric 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 AcidCaprylyl 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 GlycolSodium 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.
Sodium Benzoate 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 BenzoateIngredient Ratings
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