Skin science article
Good Molecules Hyaluronic Acid Serum Versus e.l.f. cosmetics Holy Hydration! Hydrating Serum
Good Molecules Hyaluronic Acid Serum Versus e.l.f. cosmetics Holy Hydration! Hydrating Serum This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin. This hydrating serum is formulated around Butyrospermum Parkii Butter and Simmondsia Chin
Good Molecules Hyaluronic Acid Serum Versus e.l.f. cosmetics Holy Hydration! Hydrating Serum
This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin.
This hydrating serum is formulated around Butyrospermum Parkii Butter and Simmondsia Chinensis Seed Oil to hydrate skin and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Propanediol
Glycerin
Sodium Hyaluronate
Hydroxyacetophenone
Sodium Citrate
Citric Acid
Ethylhexylglycerin
Tocopherol
Water, Propanediol, Glycerin, Sodium Hyaluronate, Hydroxyacetophenone, Sodium Citrate, Citric Acid, Ethylhexylglycerin, Tocopherol
Butylene Glycol
Hydrogenated Polyisobutene
Cetyl Ethylhexanoate
Dimethicone
Steareth-21
Steareth-2
Butyrospermum Parkii Butter
Simmondsia Chinensis Seed Oil
Phenoxyethanol
Vitis Vinifera Seed Oil
Aloe Barbadensis Leaf Extract
Caprylyl Glycol
Carbomer
Tromethamine
Tocopheryl Acetate
Chrysanthellum Indicum Extract
Disodium EDTA
Water, Butylene Glycol, Glycerin, Hydrogenated Polyisobutene, Cetyl Ethylhexanoate, Dimethicone, Steareth-21, Steareth-2, Butyrospermum Parkii Butter, Simmondsia Chinensis Seed Oil, Phenoxyethanol, Vitis Vinifera Seed Oil, Aloe Barbadensis Leaf Extract, Caprylyl Glycol, Carbomer, Tromethamine, Tocopheryl Acetate, Chrysanthellum Indicum Extract, Sodium Hyaluronate, Disodium EDTA
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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.
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.
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!