Here's our complete breakdown comparing the ingredients, attributes, and more of Pureology Pure Volume Shampoo versus Ouai Fine Hair Shampoo .
Published on November 26, 2023
Overview
What they are
These products are both cruelty-free and reef safe shampoos. They have a total of 10 ingredients in common
Suited For
They're both likely to be good for dry skin and brightening skin
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain common allergens and fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Ingredient Info
Pureology Pure Volume Shampoo 35 ingredients
Ouai Fine Hair Shampoo 36 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
Pureology Pure Volume Shampoo 35 ingredients
Ouai Fine Hair Shampoo 36 ingredients
Notable Ingredients
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Benefits
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Concerns
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Benefits
This product contains 1 ingredient that may have this attribute:
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Concerns
This product contains 3 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Pureology Pure Volume Shampoo 35 ingredients
Ouai Fine Hair Shampoo 36 ingredients
Water • Cocamidopropyl Betaine • Disodium Laureth Sulfosuccinate • Sodium Lauryl Sulfoacetate • Sodium Lauroyl Sarcosinate • Sodium Chloride • Glycol Distearate • Ppg-5-Ceteth-20 • Sodium Polystyrene Sulfonate • Decyl Glucoside • Parfum • Citric Acid • Sodium Hydroxide • Sodium Benzoate • Carbomer • Peg-55 Propylene Glycol Oleate • Propylene Glycol • Coco-Betaine • Peg-150 Pentaerythrityl Tetrastearate • Salicylic Acid • Peg-6 Caprylic/Capric Glycerides • Glycerin • Butylene Glycol • Benzoic Acid • Tocopherol • Hydroxypropyltrimonium Hydrolyzed Wheat Protein • Helianthus Annuus Seed Extract • Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol • Limonene • Benzophenone-4 • Citronellol • Eucalyptus Globulus Leaf Extract • Phenoxyethanol • CI 17200 • Potassium Sorbate
Rosa Damascena Flower Water • Sodium C14-16 Olefin Sulfonate • Cocamidopropyl Betaine • Sodium Methyl Cocoyl Taurate • Peg-200 Hydrogenated Glyceryl Palmate • Cocamide Mipa • Parfum • Panthenol • Cocoglucosides Hydroxypropyltrimonium Chloride • Hydrolyzed Keratin • Biotin • Salvia Hispanica Seed Oil • Cetrimonium Chloride • Hydroxypropyl Guar Hydroxypropyltrimonium Chloride • Glycerin • Sodium Lauroyl Glycinate • Peg-150 Distearate • Propoxytetramethyl Piperidinyl Dimethicone • Trideceth-6 • C11-15 Pareth-7 • Peg-7 Glyceryl Cocoate • Sodium Chloride • Polyquaternium-7 • Disodium EDTA • Citric Acid • Sodium Hydroxide • Tetrasodium EDTA • Potassium Sorbate • Sodium Benzoate • Phenoxyethanol • Benzyl Alcohol • Acetic Acid • Sodium Acetate • Benzyl Salicylate • Limonene • Hexyl Cinnamal
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
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 BetainePureology Pure Volume Shampoo contains this as ingredient number 2.
Ouai Fine Hair Shampoo contains this as ingredient number 3.
Chances 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 ChloridePureology Pure Volume Shampoo contains this as ingredient number 6.
Ouai Fine Hair Shampoo contains this as ingredient number 22.
Parfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "Parfum" in the ingredients list is a different mixture.
In the US, the alternative name for parfum is 'fragrance'. The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.
Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Products use parfum often to give products a scent or cover up smells of different ingredients.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
Learn more about ParfumPureology Pure Volume Shampoo contains this as ingredient number 11.
Ouai Fine Hair Shampoo contains this as ingredient number 7.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
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.
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 look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidPureology Pure Volume Shampoo contains this as ingredient number 12.
Ouai Fine Hair Shampoo contains this as ingredient number 25.
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.
Learn more about Sodium HydroxidePureology Pure Volume Shampoo contains this as ingredient number 13.
Ouai Fine Hair Shampoo contains this as ingredient number 26.
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.
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 BenzoatePureology Pure Volume Shampoo contains this as ingredient number 14.
Ouai Fine Hair Shampoo contains this as ingredient number 29.
Glycerin 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 GlycerinPureology Pure Volume Shampoo contains this as ingredient number 22.
Ouai Fine Hair Shampoo contains this as ingredient number 15.
Limonene is a fragrance that adds scent and taste to a formulation.
It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about LimonenePureology Pure Volume Shampoo contains this as ingredient number 29.
Ouai Fine Hair Shampoo contains this as ingredient number 35.
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.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Pureology Pure Volume Shampoo contains this as ingredient number 33.
Ouai Fine Hair Shampoo contains this as ingredient number 30.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
Potassium sorbate is potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
Potassium sorbate is often used with stronger preservatives.
Learn more about Potassium SorbatePureology Pure Volume Shampoo contains this as ingredient number 35.
Ouai Fine Hair Shampoo contains this as ingredient number 28.
Here's what our community thinks of the ingredients in these two products.
Pureology Pure Volume Shampoo 35 ingredients
Ouai Fine Hair Shampoo 36 ingredients
Usage
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When to use
Pureology Pure Volume Shampoo 35 ingredients
Ouai Fine Hair Shampoo 36 ingredients
Reviews
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Pureology Pure Volume Shampoo 35 ingredients
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