Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

PCA Skin Hyaluronic Acid Boosting Serum Versus Hydrinity Restorative HA Serum With PPM Technology

PCA Skin Hyaluronic Acid Boosting Serum Versus Hydrinity Restorative HA Serum With PPM Technology Detailed comparison of PCA Skin Hyaluronic Acid Boosting Serum versus Hydrinity Restorative HA Serum With PPM Technology. This hydrating serum is formulated aroun

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PCA Skin Hyaluronic Acid Boosting Serum Versus Hydrinity Restorative HA Serum With PPM Technology Detailed comparison of PCA Skin Hyaluronic Acid Boosting Serum versus Hydrinity Restorative HA Serum With PPM Technology. This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Hyaluronic Acid and Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-76 to hydrate skin and strengthen the skin barrier. 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 Butylene Glycol Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-76 Algae Extract Zingiber Officinale Root Extract Agastache Mexicana Flower/Leaf/Stem Extract Terminalia Ferdinandiana Fruit Extract Bisabolol Pullulan Tetrasodium Glutamate Diacetate C13-14 Isoparaffin Laureth-7 Polyacrylamide Chlorphenesin Water, Hyaluronic Acid, Dimethicone, Glycerin, Propanediol, Butylene Glycol, Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-76, Algae Extract, Zingiber Officinale Root Extract, Agastache Mexicana Flower/Leaf/Stem Extract, Terminalia Ferdinandiana Fruit Extract, Bisabolol, Pullulan, Tetrasodium Glutamate Diacetate, Carbomer, Dimethicone Crosspolymer, C13-14 Isoparaffin, Laureth-7, Polyacrylamide, Sodium Hydroxide, Chlorphenesin, Caprylyl Glycol, Phenoxyethanol Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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). Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. Dimethicone Crosspolymer is a silicone created by modifying dimethicone with hydrocarbon side chains. Due to its large size, it does not penetrate skin. It is considered non-occlusive. Dimethicone Crosspolymer is used to stabilize and thicken products. It also helps give products a silky feel. 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%