Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

COSRX The Hyaluronic Acid 3 Serum Versus Isntree Ultra-Low Molecular Hyaluronic Acid Serum

COSRX The Hyaluronic Acid 3 Serum Versus Isntree Ultra-Low Molecular Hyaluronic Acid Serum Detailed comparison of COSRX The Hyaluronic Acid 3 Serum versus Isntree Ultra-Low Molecular Hyaluronic Acid Serum. This hydrating serum is formulated around Sodium Hyalu

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COSRX The Hyaluronic Acid 3 Serum Versus Isntree Ultra-Low Molecular Hyaluronic Acid Serum Detailed comparison of COSRX The Hyaluronic Acid 3 Serum versus Isntree Ultra-Low Molecular Hyaluronic Acid Serum. This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Panthenol and Hydrolyzed Hyaluronic Acid to hydrate skin and strengthen the skin barrier. No concerns Water Butylene Glycol Propanediol Glycerin Sodium Hyaluronate 3% Pentylene Glycol 1,2-Hexanediol Diethoxyethyl Succinate Sodium Polyacryloyldimethyl Taurate Betaine Xanthan Gum Dimethicone Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Sodium PCA Sodium Lactate PCA Glyceryl Acrylate/Acrylic Acid Copolymer Hydrogenated Lecithin Ethylhexylglycerin Serine Alanine Glycine Sodium Phytate Sorbitan Isostearate Pvm/Ma Copolymer Glutamic Acid Citric Acid Lysine Hcl Threonine Arginine Sodium Methyl Stearoyl Taurate Proline Ceramide NP Cholesterol Caprylic/Capric Triglyceride Phytosphingosine Stearic Acid Oleic Acid Alcohol Tocopherol Lactic Acid Caprylyl Glycol Caprylhydroxamic Acid Water, Butylene Glycol, Propanediol, Glycerin, Sodium Hyaluronate 3%, Pentylene Glycol, 1,2-Hexanediol, Diethoxyethyl Succinate, Sodium Polyacryloyldimethyl Taurate, Betaine, Xanthan Gum, Dimethicone, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium PCA, Sodium Lactate, PCA, Glyceryl Acrylate/Acrylic Acid Copolymer, Hydrogenated Lecithin, Ethylhexylglycerin, Serine, Alanine, Glycine, Sodium Phytate, Sorbitan Isostearate, Pvm/Ma Copolymer, Glutamic Acid, Citric Acid, Lysine Hcl, Threonine, Arginine, Sodium Methyl Stearoyl Taurate, Proline, Ceramide NP, Cholesterol, Caprylic/Capric Triglyceride, Phytosphingosine, Stearic Acid, Oleic Acid, Alcohol, Tocopherol, Lactic Acid, Caprylyl Glycol, Caprylhydroxamic Acid Sea Water Methylpropanediol Carbomer Allantoin Tromethamine Panthenol Malachite Extract Hydrolyzed Hyaluronic Acid Disodium EDTA Glyceryl Glucoside Sodium Hyaluronate Potassium Hyaluronate Hyaluronic Acid Hydrolyzed Sodium Hyaluronate Sodium Acetylated Hyaluronate Hydroxypropyltrimonium Hyaluronate Sodium Hyaluronate Crosspolymer Dimethylsilanol Hyaluronate Hydrolyzed Calcium Hyaluronate Sodium Sulfated Hyaluronate Madecassoside Beta-Glucan Sodium Stearoyl Hyaluronate Sodium Oleoyl Hyaluronate Sea Water, Water, Methylpropanediol, Glycerin, Butylene Glycol, 1,2-Hexanediol, Betaine, Pentylene Glycol, Carbomer, Caprylyl Glycol, Allantoin, Tromethamine, Ethylhexylglycerin, Xanthan Gum, Panthenol, Malachite Extract, Hydrolyzed Hyaluronic Acid, Disodium EDTA, Glyceryl Acrylate/Acrylic Acid Copolymer, Glyceryl Glucoside, Sodium Hyaluronate, Potassium Hyaluronate, Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Crosspolymer, Dimethylsilanol Hyaluronate, Hydrolyzed Calcium Hyaluronate, Sodium Sulfated Hyaluronate, Madecassoside, Beta-Glucan, Sodium Stearoyl Hyaluronate, Sodium Oleoyl Hyaluronate 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. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). 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