Here's our complete breakdown comparing the ingredients, attributes, and more of Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair versus Necessaire The Scalp Serum .
Published on March 04, 2024
Overview
What they are
These products are both vegan, cruelty-free, and reef safe . They have a total of 8 ingredients in common
Cool Features
They both contain hyaluronic acid and peptides
Suited For
They're both likely to be good for anti aging, brightening skin and reducing pores
Free From
They both do not contain any harsh alcohols, oils, 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.
Serum
Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.
Price
Ingredient Info
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair 28 ingredients
Necessaire The Scalp Serum 20 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
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 🎉
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 🎉
EU Allergen Free
This product is free of 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
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair 28 ingredients
Necessaire The Scalp Serum 20 ingredients
Notable Ingredients
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Benefits
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Concerns
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:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 5 ingredients that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients 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:
This product contains 2 ingredients 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.
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair 28 ingredients
Necessaire The Scalp Serum 20 ingredients
Water • Polysorbate 20 • Butylene Glycol • Glycerin • Polyquaternium-7 • Rhodiola Rosea Extract • Sodium Hyaluronate • Tocopheryl Acetate • Acetyl Tetrapeptide-3 • Tocopherol • Rosa Centifolia Flower Extract • Dextran • Trifolium Pratense Flower Extract • Acanthopanax Senticosus Root Extract • Rhaponticum Carthamoides Root Extract • Inonotus Obliquus Extract • Selaginella Lepidophylla Extract • Ethylhexylglycerin • Disodium EDTA • Sodium Hydroxide • Acrylates/C10-30 Alkyl Acrylate Crosspolymer • Citric Acid • Sodium Benzoate • Phenoxyethanol • Parfum • Eugenol • Limonene • Linalool
Water • Butylene Glycol • Propanediol • Sodium Hyaluronate • Acetyl Tetrapeptide-3 • Niacinamide • Panthenol • Trifolium Pratense Flower Extract • Apium Graveolens Seed Extract • Camellia Sinensis Leaf Extract • Biotinoyl Tripeptide-1 • Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-86 • Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-9 • Nicotiana Benthamiana Hexapeptide-40 Sh-Oligopeptide-1 • Sodium Tocopheryl Phosphate • Dextran • 1,2-Hexanediol • Caprylhydroxamic Acid • Citric Acid • Glycerin
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 WaterOuai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 1.
Necessaire The Scalp Serum contains this as ingredient number 1.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 3.
Necessaire The Scalp Serum contains this as ingredient number 2.
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 GlycerinOuai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 4.
Necessaire The Scalp Serum contains this as ingredient number 20.
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 HyaluronateOuai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 7.
Necessaire The Scalp Serum contains this as ingredient number 4.
Acetyl Tetrapeptide-3 is a peptide.
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 9.
Necessaire The Scalp Serum contains this as ingredient number 5.
We don't have a description for Dextran.
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 12.
Necessaire The Scalp Serum contains this as ingredient number 16.
Trifolium Pratense Flower Extract can help to reduce large pores.
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 13.
Necessaire The Scalp Serum contains this as ingredient number 8.
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 AcidOuai Hydrating Scalp Serum for Healthy, Fuller Looking Hair contains this as ingredient number 22.
Necessaire The Scalp Serum contains this as ingredient number 19.
Here's what our community thinks of the ingredients in these two products.
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair 28 ingredients
Necessaire The Scalp Serum 20 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair 28 ingredients
Necessaire The Scalp Serum 20 ingredients
Alternatives
Our Dupe Finder has found 2 potential alternatives that have similar ingredients to Ouai Hydrating Scalp Serum for Healthy, Fuller Looking Hair.
See 2 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to Necessaire The Scalp Serum.
See 50 alternatives