Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

PCA Skin Hyaluronic Acid Boosting Serum Versus Good Molecules Hyaluronic Acid Serum

PCA Skin Hyaluronic Acid Boosting Serum Versus Good Molecules Hyaluronic Acid Serum Detailed comparison of PCA Skin Hyaluronic Acid Boosting Serum versus Good Molecules Hyaluronic Acid Serum. This hydrating serum is formulated around Niacinamide and Sodium Hya

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PCA Skin Hyaluronic Acid Boosting Serum Versus Good Molecules Hyaluronic Acid Serum Detailed comparison of PCA Skin Hyaluronic Acid Boosting Serum versus Good Molecules Hyaluronic Acid Serum. This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin. No concerns Water Propanediol Glycerin Niacinamide Dimethicone Hydrolyzed Yeast Extract Polyglyceryl-3 Beeswax Coconut Alkanes Phenoxyethanol Isododecane Jojoba Esters Dimethicone Crosspolymer Polysilicone-11 Sodium Hyaluronate Sodium Benzoate Carbomer Xanthan Gum Hydrolyzed Hyaluronic Acid Cetyl Alcohol Polyglyceryl-6 Distearate Sodium Lauroyl Lactylate Disodium Acetyl Glucosamine Phosphate Hydrolyzed Glycosaminoglycans Ethylhexylglycerin Sodium Hydroxide Hexylene Glycol Polygonum Bistorta Root Extract Cetyl Hydroxyethylcellulose Rosmarinus Officinalis Leaf Oil Aroma Polyglucuronic Acid Ceramide NP Hyaluronic Acid Sodium Carrageenan Ceramide AP Phytosphingosine Caprylyl Glycol Cholesterol Lecithin Maris Sal Ceramide EOP Water, Propanediol, Glycerin, Niacinamide, Dimethicone, Hydrolyzed Yeast Extract, Polyglyceryl-3 Beeswax, Coconut Alkanes, Phenoxyethanol, Isododecane, Jojoba Esters, Dimethicone Crosspolymer, Polysilicone-11, Sodium Hyaluronate, Sodium Benzoate, Carbomer, Xanthan Gum, Hydrolyzed Hyaluronic Acid, Cetyl Alcohol, Polyglyceryl-6 Distearate, Sodium Lauroyl Lactylate, Disodium Acetyl Glucosamine Phosphate, Hydrolyzed Glycosaminoglycans, Ethylhexylglycerin, Sodium Hydroxide, Hexylene Glycol, Polygonum Bistorta Root Extract, Cetyl Hydroxyethylcellulose, Rosmarinus Officinalis Leaf Oil, Aroma, Polyglucuronic Acid, Ceramide NP, Hyaluronic Acid, Sodium Carrageenan, Ceramide AP, Phytosphingosine, Caprylyl Glycol, Cholesterol, Lecithin, Maris Sal, Ceramide EOP Hydroxyacetophenone Sodium Citrate Citric Acid Tocopherol Water, Propanediol, Glycerin, Sodium Hyaluronate, Hydroxyacetophenone, Sodium Citrate, Citric Acid, Ethylhexylglycerin, Tocopherol 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. 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. 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!