Trader Joe's Supreme Hydrating Eye Cream Versus The INKEY List Retinol Serum

Trader Joe's Supreme Hydrating Eye Cream Versus The INKEY List Retinol Serum Detailed comparison of Trader Joe's Supreme Hydrating Eye Cream versus The INKEY List Retinol Serum. This barrier-repair eye moisturizer is formulated around Butyrospermum Parkii Butter and Squalane to strengthen the skin barrier and hydrate skin. This anti-aging serum is formulated around Retinyl Acetate and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and refine skin texture. Water Dicaprylyl Carbonate Betaine Glycerin Cetearyl Alcohol Prunus Amygdalus Dulcis Oil Cetyl Alcohol Cetearyl Olivate Isopropyl Myristate Isoamyl Laurate Sorbitan Olivate Glyceryl Caprylate Butyrospermum Parkii Butter Triethanolamine Argania Spinosa Kernel Oil Sclerocarya Birrea Seed Oil Carbomer Honey Parfum Caprylhydroxamic Acid Tocopheryl Acetate Sodium Citrate Rosa Canina Seed Oil Hydrolyzed Collagen Squalane Cassia Angustifolia Seed Polysaccharide Hydrolyzed Hibiscus Esculentus Extract Dextrin Ubiquinone Water, Dicaprylyl Carbonate, Betaine, Glycerin, Cetearyl Alcohol, Prunus Amygdalus Dulcis Oil, Cetyl Alcohol, Cetearyl Olivate, Isopropyl Myristate, Isoamyl Laurate, Sorbitan Olivate, Glyceryl Caprylate, Butyrospermum Parkii Butter, Triethanolamine, Argania Spinosa Kernel Oil, Sclerocarya Birrea Seed Oil, Carbomer, Honey, Parfum, Caprylhydroxamic Acid, Tocopheryl Acetate, Sodium Citrate, Rosa Canina Seed Oil, Hydrolyzed Collagen, Squalane, Cassia Angustifolia Seed Polysaccharide, Hydrolyzed Hibiscus Esculentus Extract, Dextrin, Ubiquinone Butylene Glycol Propanediol Retinyl Acetate Dimethicone Phenoxyethanol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Caprylyl Glycol Phospholipids Glycine Soja Oil Polysorbate 60 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 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Dicaprylyl Carbonate comes from carbonic acid and caprylyl alcohol, a fatty alcohol. It is an emollient and gives skin a velvet feel. The sources of Dicaprylyl Carbonate may be synthetic or from animals. As an emollient, Dicaprylyl Carbonate creates a film on the skin. This film traps moisture in, keeping your skin soft and hydrated. 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. Squalane is the hydrogenated and shelf-stable form of squalene (a lipid that naturally occurs in human sebum). It is an emollient and skin conditioning agent that is able to integrate seamlessly into the skin's lipid barrier without clogging pores. This is due to how structurally similar it is to what your skin already produces. Though it is mostly an emollient that helps soften and hydrate skin, it also has some humectant and occlusive action. Humectants help the skin retain moisture while occlusives seal it in, making squalane a triple-threat moisturizer. Research shows it has antioxidant capabilities that help protect against stressors like UV exposure, specifically UVA induced oxidative stress. This study also found that it supports collagen biosynthesis in human dermal fibroblasts. No clinical study has reported significant adverse effects and irritation reactions are ve