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The INKEY List Hyaluronic Acid Hydrating Hair Treatment Versus Necessaire The Scalp Serum

The INKEY List Hyaluronic Acid Hydrating Hair Treatment Versus Necessaire The Scalp Serum What's inside Key Ingredients Benefits Concerns No concerns Ingredients Side-by-side Water PEG-40 Hydrogenated Castor Oil Betaine Panthenol Phenoxyethanol Polyquaternium-

By Peptide Skincare & Beauty Editorial TeamPublished

The INKEY List Hyaluronic Acid Hydrating Hair Treatment Versus Necessaire The Scalp Serum

What's inside

Key Ingredients

Benefits

Concerns

No concerns

Ingredients Side-by-side

Water

PEG-40 Hydrogenated Castor Oil

Betaine

Panthenol

Phenoxyethanol

Polyquaternium-37

Citronellyl Methylcrotonate

Ethylhexylglycerin

Hydrolyzed Hyaluronic Acid

Trisodium Ethylenediamine Disuccinate

Lactic Acid

Sodium Hyaluronate

Water, PEG-40 Hydrogenated Castor Oil, Betaine, Panthenol, Phenoxyethanol, Polyquaternium-37, Citronellyl Methylcrotonate, Ethylhexylglycerin, Hydrolyzed Hyaluronic Acid, Trisodium Ethylenediamine Disuccinate, Lactic Acid, Sodium Hyaluronate

Butylene Glycol

Propanediol

Acetyl Tetrapeptide-3

Niacinamide

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 Octapeptide-30 Sh-Oligopeptide-2

Sodium Tocopheryl Phosphate

Dextran

1,2-Hexanediol

Caprylhydroxamic Acid

Citric Acid

Glycerin

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 Octapeptide-30 Sh-Oligopeptide-2, Sodium Tocopheryl Phosphate, Dextran, 1,2-Hexanediol, Caprylhydroxamic Acid, Citric Acid, Glycerin

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

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.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

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. Remember to stay hydrated!

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The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

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Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 03Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics.
  4. 04Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity.
  5. 05Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation.
  6. 06It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh.
  7. 07Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated.
  8. 08This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%.
  9. 09Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating.
  10. 10Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism.
  11. 11Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
  12. 12The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure …
  13. 13Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
  14. 14Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
  15. 15Topically, glycerin does several things at once:
  16. 16Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
  17. 17Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
  18. 18This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
  19. 19Just know very high concentrations (>40%) can feel tacky in low humidity.
  20. 20Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Source · skinsort.com ⟶
02

Product index

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03

Comparison edit

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