Ouai Detox Shampoo Versus BioSilk Hydrating Therapy Shampoo
Updated on May 15, 2025
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, brightening skin and scar healing
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 needs an update? Let us know.
Ingredient Info
Ouai Detox Shampoo 33 ingredients
BioSilk Hydrating Therapy Shampoo 38 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
Ouai Detox Shampoo 33 ingredients
BioSilk Hydrating Therapy Shampoo 38 ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningSodium C14-16 Olefin Sulfonate
Cleansing
Sodium Lauroyl Methyl Isethionate
CleansingCocamidopropyl Betaine
Cleansing
Decyl Glucoside
CleansingAcrylates Copolymer
Cocamide Mipa
EmulsifyingParfum
Masking
Polysorbate 20
Emulsifying
Hydrolyzed Keratin
Humectant
Hydroxypropyl Guar Hydroxypropyltrimonium Chloride
Vinegar
PEG-150 Distearate
Emulsifying
Polyquaternium-7
Glycerin
Humectant
Benzophenone-4
UV Absorber
Sodium Chloride
Masking
Sodium Hydroxide
BufferingTetrasodium EDTA
Trisodium Ethylenediamine Disuccinate
Isopropyl Alcohol
Solvent
Propylene Glycol
Humectant
Citric Acid
Buffering
Disodium EDTA
Chlorphenesin
Antimicrobial
Sodium Benzoate
Masking
Phenoxyethanol
Preservative
Potassium Sorbate
Preservative
Linalool
Perfuming
Citronellol
Perfuming
CI 14700
Cosmetic ColorantCI 19140
Cosmetic ColorantCI 61570
Cosmetic ColorantWater, Sodium C14-16 Olefin Sulfonate, Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Betaine, Decyl Glucoside, Acrylates Copolymer, Cocamide Mipa, Parfum, Polysorbate 20, Hydrolyzed Keratin, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Vinegar, PEG-150 Distearate, Polyquaternium-7, Glycerin, Benzophenone-4, Sodium Chloride, Sodium Hydroxide, Tetrasodium EDTA, Trisodium Ethylenediamine Disuccinate, Isopropyl Alcohol, Propylene Glycol, Citric Acid, Disodium EDTA, Chlorphenesin, Sodium Benzoate, Phenoxyethanol, Potassium Sorbate, Linalool, Citronellol, CI 14700, CI 19140, CI 61570
Water
Skin ConditioningSodium C14-16 Olefin Sulfonate
Cleansing
Cocamidopropyl Betaine
Cleansing
Glycerin
Humectant
Acrylates Copolymer
Caprylyl Glycol
EmollientDecyl Glucoside
CleansingPassiflora Edulis Seed Oil
Emollient
Hydrolyzed Quinoa
Skin ConditioningHydrolyzed Silk
Humectant
Anthemis Nobilis Flower Extract
Masking
Lavandula Angustifolia Flower Extract
Cleansing
Mentha Piperita Leaf Extract
Skin ConditioningSalvia Sclarea Extract
AntiseborrhoeicSymphytum Officinale Leaf Extract
Skin ConditioningPanthenol
Skin Conditioning
Xylitylglucoside
Humectant
Anhydroxylitol
Humectant
Xylitol
Humectant
Tocopherol
Antioxidant
PEG-12 Dimethicone
Skin Conditioning
Disodium Laureth Sulfosuccinate
CleansingHexylene Glycol
EmulsifyingPentylene Glycol
Skin ConditioningGlycol Distearate
Emollient
Laureth-4
Emulsifying
Guar Hydroxypropyltrimonium Chloride
Skin ConditioningEthylhexylglycerin
Skin ConditioningPEG-150 Pentaerythrityl Tetrastearate
Emulsifying
Tetrasodium EDTA
Propanediol
Solvent
PEG-6 Caprylic/Capric Glycerides
EmulsifyingCitric Acid
Buffering
Parfum
Masking
Benzyl Benzoate
Antimicrobial
Hexyl Cinnamal
Perfuming
Limonene
Perfuming
Linalool
Perfuming
Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycerin, Acrylates Copolymer, Caprylyl Glycol, Decyl Glucoside, Passiflora Edulis Seed Oil, Hydrolyzed Quinoa, Hydrolyzed Silk, Anthemis Nobilis Flower Extract, Lavandula Angustifolia Flower Extract, Mentha Piperita Leaf Extract, Salvia Sclarea Extract, Symphytum Officinale Leaf Extract, Panthenol, Xylitylglucoside, Anhydroxylitol, Xylitol, Tocopherol, PEG-12 Dimethicone, Disodium Laureth Sulfosuccinate, Hexylene Glycol, Pentylene Glycol, Glycol Distearate, Laureth-4, Guar Hydroxypropyltrimonium Chloride, Ethylhexylglycerin, PEG-150 Pentaerythrityl Tetrastearate, Tetrasodium EDTA, Propanediol, PEG-6 Caprylic/Capric Glycerides, Citric Acid, Parfum, Benzyl Benzoate, Hexyl Cinnamal, Limonene, Linalool
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Acrylates Copolymer is used as a film-forming agent and texture enhancer.
After applied, Acrylates Copolymer forms a thin film cover that helps skin feel more soft. It can help sunscreens become more water-resistant.
It is also used to make a product more thick.
Learn more about Acrylates CopolymerCitric 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 AcidCocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine, a compound with two amino groups.
This ingredient 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 BetaineDecyl Glucoside is a glucose-based surfactant and emulsion stabilizer. It is created by reacting glucose with the fatty acids from plants.
Surfactants help clean the skin by trapping oil, sebum, and dirt to be washed away. As an emulsion stabilizer, it stabilizes the ingredients in a product by preventing them from separating.
This ingredient is biodegradable and non-toxic. This ingredient is commonly found in baby shampoos.
Decyl Glucoside is sometimes used to stabilize the UV filter Tinosorb.
Learn more about Decyl GlucosideGlycerin 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 GlycerinLinalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Like Limonene, this ingredient oxidizes when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.
This ingredient has a scent that is floral, spicy tropical, and citrus-like.
Learn more about LinaloolParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient 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.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or '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 by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
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 ParfumSodium C14-16 Olefin Sulfonate is a cleansing agent made from a mixture of long chain sulfonate salts. It can also help produce foam.
This ingredient may be drying. We recommend speaking with a professional if you have concerns.
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.
Tetrasodium EDTA comes as a white solid and is soluble in water.
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 WaterIngredient Ratings
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When to use
Ouai Detox Shampoo 33 ingredients
BioSilk Hydrating Therapy Shampoo 38 ingredients
Reviews
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