Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

The INKEY List Retinol Serum Versus Murad Retinol Youth Renewal Serum

The INKEY List Retinol Serum Versus Murad Retinol Youth Renewal Serum Detailed comparison of The INKEY List Retinol Serum versus Murad Retinol Youth Renewal Serum. This anti-aging serum is formulated around Retinyl Acetate and Palmitoyl Tetrapeptide-7 to softe

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The INKEY List Retinol Serum Versus Murad Retinol Youth Renewal Serum Detailed comparison of The INKEY List Retinol Serum versus Murad Retinol Youth Renewal Serum. This anti-aging serum is formulated around Retinyl Acetate and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and refine skin texture. This anti-aging serum is formulated around Retinol and Hydroxypinacolone Retinoate to soften the look of wrinkles and refine skin texture. Water Glycerin Butylene Glycol Propanediol Dicaprylyl Carbonate Retinyl Acetate Dimethicone Phenoxyethanol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Caprylyl Glycol Phospholipids Squalane Glycine Soja Oil Carbomer Polysorbate 60 Tocopheryl Acetate Glycolipids Sodium Hydroxide Sodium Phytate Sorbitan Isostearate Glycine Soja Sterols Tetrahexyldecyl Ascorbate Leuconostoc/Radish Root Ferment Filtrate Hyaluronic Acid Sodium Lactate Tocopherol Polysorbate 20 Palmitoyl Tetrapeptide-7 Palmitoyl Tripeptide-1 Water, Glycerin, Butylene Glycol, Propanediol, Dicaprylyl Carbonate, Retinyl Acetate, Dimethicone, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Caprylyl Glycol, Phospholipids, Squalane, Glycine Soja Oil, Carbomer, Polysorbate 60, Tocopheryl Acetate, Glycolipids, Sodium Hydroxide, Sodium Phytate, Sorbitan Isostearate, Glycine Soja Sterols, Tetrahexyldecyl Ascorbate, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Sodium Lactate, Tocopherol, Polysorbate 20, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1 Cyclopentasiloxane Isopropyl Palmitate C14-22 Alcohols Polymethylsilsesquioxane Glyceryl Stearate PEG-100 Stearate Shea Butter Ethyl Esters Retinol Hydroxypinacolone Retinoate Ceramide NP Sodium Hyaluronate Solanum Lycopersicum Fruit Extract Swertia Chirata Extract Punica Granatum Extract Glycine Soja Extract Urea Yeast Amino Acids Trehalose Inositol Taurine Betaine Caprylic/Capric Triglyceride Dimethyl Isosorbide Silica Ethylhexyl Palmitate Silica Dimethyl Silylate Lecithin Ammonium Acryloyldimethyltaurate/Vp Copolymer C12-20 Alkyl Glucoside Cetyl Palmitate Laureth-23 Trideceth-6 Phosphate Synthetic Fluorphlogopite Ethylhexylglycerin Chlorphenesin Disodium EDTA Tris(Tetramethylhydroxypiperidinol)Citrate Sodium Benzotriazolyl Butylphenol Sulfonate CI 77891 CI 14700 Alpha-Isomethyl Ionone Citronellol Parfum Water, Cyclopentasiloxane, Isopropyl Palmitate, C14-22 Alcohols, Polymethylsilsesquioxane, Dimethicone, Propanediol, Glyceryl Stearate, PEG-100 Stearate, Shea Butter Ethyl Esters, Retinol, Hydroxypinacolone Retinoate, Ceramide NP, Sodium Hyaluronate, Solanum Lycopersicum Fruit Extract, Swertia Chirata Extract, Squalane, Punica Granatum Extract, Tocopheryl Acetate, Glycine Soja Extract, Urea, Yeast Amino Acids, Trehalose, Inositol, Taurine, Betaine, Glycerin, Caprylic/Capric Triglyceride, Dimethyl Isosorbide, Silica, Ethylhexyl Palmitate, Silica Dimethyl Silylate, Butylene Glycol, Lecithin, Ammonium Acryloyldimethyltaurate/Vp Copolymer, C12-20 Alkyl Glucoside, Cetyl Palmitate, Laureth-23, Polysorbate 20, Trideceth-6 Phosphate, Synthetic Fluorphlogopite, Phenoxyethanol, Ethylhexylglycerin, Chlorphenesin, Disodium EDTA, Sodium Hydroxide, Tris(Tetramethylhydroxypiperidinol)Citrate, Sodium Benzotriazolyl Butylphenol Sulfonate, CI 77891, CI 14700, Alpha-Isomethyl Ionone, Citronellol, Parfum 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. 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. 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. 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. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration