Skin science article
The INKEY List Glycolic Acid Exfoliating Scalp Scrub Versus Aromatica Rosemary Scalp Scrub
The INKEY List Glycolic Acid Exfoliating Scalp Scrub Versus Aromatica Rosemary Scalp Scrub What's inside Key Ingredients Benefits Concerns Ingredients Side-by-side Water Glycolic Acid Propanediol Hydrogenated Castor Oil PEG-40 Hydrogenated Castor Oil Betaine G
The INKEY List Glycolic Acid Exfoliating Scalp Scrub Versus Aromatica Rosemary Scalp Scrub
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycolic Acid
Propanediol
Hydrogenated Castor Oil
PEG-40 Hydrogenated Castor Oil
Betaine
Glycerin
Sodium Hydroxide
Polyquaternium-10
Phenoxyethanol
Benzyl Alcohol
Alpha-Glucan Oligosaccharide
Citronellyl Methylcrotonate
Panthenol
Ethylhexylglycerin
Dehydroacetic Acid
Mannitol
Trisodium Ethylenediamine Disuccinate
Sodium Benzoate
Tetraselmis Suecica Extract
Lactic Acid
Potassium Benzoate
Water, Glycolic Acid, Propanediol, Hydrogenated Castor Oil, PEG-40 Hydrogenated Castor Oil, Betaine, Glycerin, Sodium Hydroxide, Polyquaternium-10, Phenoxyethanol, Benzyl Alcohol, Alpha-Glucan Oligosaccharide, Citronellyl Methylcrotonate, Panthenol, Ethylhexylglycerin, Dehydroacetic Acid, Mannitol, Trisodium Ethylenediamine Disuccinate, Sodium Benzoate, Tetraselmis Suecica Extract, Lactic Acid, Potassium Benzoate
Sea Salt
Sodium Chloride
Rosmarinus Officinalis Leaf Extract
Pinus Densiflora Leaf Extract
Sodium Methyl Cocoyl Taurate
Coco-Betaine
Lauryl Betaine
Zingiber Officinale Root Extract
Xanthan Gum
Rosmarinus Officinalis Leaf Oil
Ocimum Basilicum Leaf Extract
Ocimum Sanctum Leaf Extract
Origanum Vulgare Leaf Extract
Bifida Ferment Lysate
Lactobacillus Ferment Lysate
Caffeine
Moringa Oleifera Seed Oil
Menthol
Salicylic Acid
Cedrus Atlantica Bark Oil
Abies Sibirica Oil
Cupressus Sempervirens Oil
Niacinamide
Chamomilla Recutita Flower Extract
Verbena Officinalis Extract
Styrax Benzoin Resin Extract
Dipropylene Glycol
Limonene
Guar Hydroxypropyltrimonium Chloride
Melia Azadirachta Leaf Extract
Melia Azadirachta Flower Extract
Coccinia Indica Fruit Extract
Amber Powder
Solanum Melongena Fruit Extract
Curcuma Longa Root Extract
Corallina Officinalis Extract
Disodium EDTA
1,2-Hexanediol
Sea Salt, Sodium Chloride, Rosmarinus Officinalis Leaf Extract, Water, Pinus Densiflora Leaf Extract, Sodium Methyl Cocoyl Taurate, Glycerin, Coco-Betaine, Lauryl Betaine, Zingiber Officinale Root Extract, Xanthan Gum, Propanediol, Ethylhexylglycerin, Rosmarinus Officinalis Leaf Oil, Ocimum Basilicum Leaf Extract, Ocimum Sanctum Leaf Extract, Origanum Vulgare Leaf Extract, Bifida Ferment Lysate, Lactobacillus Ferment Lysate, Caffeine, Panthenol, Moringa Oleifera Seed Oil, Menthol, Salicylic Acid, Cedrus Atlantica Bark Oil, Abies Sibirica Oil, Cupressus Sempervirens Oil, Niacinamide, Chamomilla Recutita Flower Extract, Verbena Officinalis Extract, Styrax Benzoin Resin Extract, Dipropylene Glycol, Limonene, Guar Hydroxypropyltrimonium Chloride, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Amber Powder, Solanum Melongena Fruit Extract, Curcuma Longa Root Extract, Corallina Officinalis Extract, Disodium EDTA, 1,2-Hexanediol
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The 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 to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your 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.
Aquaporin-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.
This 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.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
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.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
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!