COSRX Propolis Light Ampoule Versus Cos De BAHA CH Centella Hyaluronic Acid Serum

COSRX Propolis Light Ampoule Versus Cos De BAHA CH Centella Hyaluronic Acid Serum

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

This calming serum is formulated around Centella Asiatica Extract and Sodium Hyaluronate to calm redness and hydrate skin.

What's inside

Key Ingredients

Benefits

Ingredients Side-by-side

Propolis Extract

Butylene Glycol

Glycerin

Betaine

1,2-Hexanediol

Cassia Obtusifolia Seed Extract

Sodium Hyaluronate

Hydroxyethylcellulose

Carbomer

Panthenol

Arginine

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

Centella Asiatica Extract

Aloe Barbadensis Leaf Extract

Camellia Sinensis Leaf Extract

Momordica Charantia Fruit Extract

Sambucus Nigra Flower Extract

Leontopodium Alpinum Extract

Centella Asiatica Extract, Betaine, 1,2-Hexanediol, Aloe Barbadensis Leaf Extract, Sodium Hyaluronate, Camellia Sinensis Leaf Extract, Momordica Charantia Fruit Extract, Sambucus Nigra Flower Extract, Leontopodium Alpinum Extract

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.

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.

It is a:

Humectant, drawing moisture into the skin

Emollient, helping to soften skin

Solvent, dispersing and stabilizing formulas

Preservative booster, enhancing the antimicrobial activity of other preservatives

Betaine is a humectant. Like hyaluronic acid, it helps attract and retain moisture in the skin. It’s known for being gentle and for helping the skin maintain balanced hydration.

Betaine is mainly used to improve hydration and support calmer skin. It helps skin cells regulate water balance because it functions as an osmolyte.

Some studies suggest betaine may support making skin tone more even.

Fun fact: Betaine naturally exists in the skin and the body. In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability.

Betaine is also known as trimethylglycine.

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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