Here's our complete breakdown comparing the ingredients, attributes, and more of The INKEY List Hyaluronic Acid Hydrating Hair Treatment versus Olaplex Nº.9 Bond Protector Nourishing Hair Serum .
Last updated on October 25, 2023. Published on November 06, 2023
Overview
What they are
These products are both vegan, cruelty-free, and reef safe hair serums. They have a total of 7 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for dry skin and sensitive skin
Free From
They both do not contain any harsh alcohols, parabens, silicones 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 need an update? Let us know.
Hair Serum
Liquid-based hair treatment to help nourish the hair.
Hair Serum
Liquid-based hair treatment to help nourish the hair.
Price
Ingredient Info
The INKEY List Hyaluronic Acid Hydrating Hair Treatment 12 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 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 🎉
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 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
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 🎉
Malassezia Safe
This product is free of malassezia feeding ingredients 🎉
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 🎉
At a glance
Click on any of the items below to learn more
The INKEY List Hyaluronic Acid Hydrating Hair Treatment 12 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
The INKEY List Hyaluronic Acid Hydrating Hair Treatment 12 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Water • Propanediol • Betaine • Quaternium-22 • Sodium Hyaluronate • Bis-Aminopropyl Diglycol Dimaleate • Cetrimonium Chloride • Panthenol • Hydroxyethylcellulose • Pvp • Guar Hydroxypropyltrimonium Chloride • Furcellaria Lumbricalis Extract • Pelvetia Canaliculata Extract • Xylitylglucoside • Polyquaternium-44 • Anhydroxylitol • Maltitol • Citric Acid • Trisodium Ethylenediamine Disuccinate • Xylitol • Sorbic Acid • Phenoxyethanol • Ethylhexylglycerin • Sodium Benzoate • Parfum • Citral • Citronellol • Hexyl Cinnamal • Limonene • Linalool
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.
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterThe INKEY List Hyaluronic Acid Hydrating Hair Treatment contains this as ingredient number 1.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 1.
Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.
Betaine is best for improving hydration and soothing irritated skin. Studies show betaine may help with uneven skin tones.
Betaine is naturally created in the skin and body. The form found within cosmetic products can be either plant-dervied or synthetic.
Learn more about BetaineThe INKEY List Hyaluronic Acid Hydrating Hair Treatment contains this as ingredient number 3.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 3.
Panthenol (also referred to as pro-vitamin B5) is a common ingredient that helps hydrate and soothe the skin.
lt is a humectant, meaning that it helps the skin attract and retain moisture.
Another benefit is the anti-inflammatory abilities. This means that it's great for sensitive, irritation-prone skin.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
Learn more about PanthenolThe INKEY List Hyaluronic Acid Hydrating Hair Treatment contains this as ingredient number 4.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 8.
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.
The INKEY List Hyaluronic Acid Hydrating Hair Treatment contains this as ingredient number 5.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 22.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
The INKEY List Hyaluronic Acid Hydrating Hair Treatment contains this as ingredient number 8.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 23.
Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.
It is a chelating agent, meaning it helps prevent metal ions from binding to other ingredients. This prevents unwanted reactions in products. Metal ions can come into a product via the water ingredient. They are found in trace amounts and are not known to be harmful.
The INKEY List Hyaluronic Acid Hydrating Hair Treatment contains this as ingredient number 10.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 19.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateThe INKEY List Hyaluronic Acid Hydrating Hair Treatment contains this as ingredient number 12.
Olaplex Nº.9 Bond Protector Nourishing Hair Serum contains this as ingredient number 5.
Here's what our community thinks of the ingredients in these two products.
The INKEY List Hyaluronic Acid Hydrating Hair Treatment 12 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
The INKEY List Hyaluronic Acid Hydrating Hair Treatment 12 ingredients
Olaplex Nº.9 Bond Protector Nourishing Hair Serum 30 ingredients
Reviews
Here's what our community thinks
The INKEY List Hyaluronic Acid Hydrating Hair Treatment 12 ingredients
Alternatives
Our Dupe Finder has found 1 potential alternatives that have similar ingredients to The INKEY List Hyaluronic Acid Hydrating Hair Treatment.
See 1 alternativesOur Dupe Finder has found 2 potential alternatives that have similar ingredients to Olaplex Nº.9 Bond Protector Nourishing Hair Serum.
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