Good Molecules Hyaluronic Acid Serum Versus COSRX Propolis Light Ampoule

Good Molecules Hyaluronic Acid Serum Versus COSRX Propolis Light Ampoule

This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin.

This calming ampoule is formulated around Propolis Extract and Panthenol to calm redness and hydrate skin.

What's inside

Key Ingredients

Benefits

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

Propolis Extract

Butylene Glycol

Betaine

1,2-Hexanediol

Cassia Obtusifolia Seed Extract

Hydroxyethylcellulose

Carbomer

Panthenol

Arginine

Propolis Extract, Butylene Glycol, Glycerin, Betaine, 1,2-Hexanediol, Cassia Obtusifolia Seed Extract, Sodium Hyaluronate, Hydroxyethylcellulose, Carbomer, Panthenol, Arginine

Reviews

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.

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