Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide Versus Clinique Smart Clinical Repair Wrinkle Correcting Serum

Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide Versus Clinique Smart Clinical Repair Wrinkle Correcting Serum Detailed comparison of Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide versus Clinique Smart Clinical Repair Wrinkle Correcting Serum. This anti-aging serum is formulated around Niacinamide and Ceramide NP to soften the look of wrinkles and refine skin texture. This anti-aging serum is formulated around Acetyl Hexapeptide-8 and Palmitoyl Tripeptide-1 to soften the look of wrinkles and refine skin texture. Water Glycerin Butylene Glycol Pentylene Glycol Niacinamide Cetyl Alcohol Isohexadecane Isononyl Isononanoate Diisopropyl Sebacate 2-Oleamido-1,3-Octadecanediol 4-T-Butylcyclohexanol Acetyl Dipeptide-1 Cetyl Ester Adenosine Ceramide NP Hydroxypalmitoyl Sphinganine Lauroyl Lysine Octyldodecanol Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Sodium Chloride Sodium Hyaluronate Sodium Hydroxide Trisodium Ethylenediamine Disuccinate Retinol Tocopherol Dicaprylyl Ether Ammonium Polyacryloyldimethyl Taurate Behenyl Alcohol Caprylyl Glycol Carbomer Cetearyl Alcohol Cetearyl Glucoside Glycine Soja Oil Helianthus Annuus Seed Oil Hydroxyethylcellulose Lecithin Phenethyl Alcohol Poloxamer 188 Polycaprolactone Sorbitan Laurate Steareth-100 CI 40800 Chlorphenesin Phenoxyethanol Water, Glycerin, Butylene Glycol, Pentylene Glycol, Niacinamide, Cetyl Alcohol, Isohexadecane, Isononyl Isononanoate, Diisopropyl Sebacate, 2-Oleamido-1,3-Octadecanediol, 4-T-Butylcyclohexanol, Acetyl Dipeptide-1 Cetyl Ester, Adenosine, Ceramide NP, Hydroxypalmitoyl Sphinganine, Lauroyl Lysine, Octyldodecanol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Sodium Chloride, Sodium Hyaluronate, Sodium Hydroxide, Trisodium Ethylenediamine Disuccinate, Retinol, Tocopherol, Dicaprylyl Ether, Ammonium Polyacryloyldimethyl Taurate, Behenyl Alcohol, Caprylyl Glycol, Carbomer, Cetearyl Alcohol, Cetearyl Glucoside, Glycine Soja Oil, Helianthus Annuus Seed Oil, Hydroxyethylcellulose, Lecithin, Phenethyl Alcohol, Poloxamer 188, Polycaprolactone, Sorbitan Laurate, Steareth-100, CI 40800, Chlorphenesin, Phenoxyethanol Dimethicone Isododecane Polysilicone-11 Ascorbyl Glucoside Tocopheryl Acetate Squalane Hypnea Musciformis Extract Gelidiella Acerosa Extract Sigesbeckia Orientalis Extract Helianthus Annuus Seed Extract Hordeum Vulgare Extract Triticum Vulgare Germ Extract Cucumis Sativus Fruit Extract Caffeine Acetyl Hexapeptide-8 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Palmitoyl Hexapeptide-12 PEG-10 Dimethicone Glycyrrhetinic Acid Whey Protein Propylene Glycol Dicaprate Hydroxypinacolone Retinoate Acetyl Glucosamine Cholesterol PEG-8 Faex Extract PEG-6 Dimethyl Isosorbide Glyceryl Polymethacrylate Polysorbate 20 Sodium Phosphate Synthetic Fluorphlogopite Polysorbate 80 Hexylene Glycol Ammonium Acryloyldimethyltaurate/Vp Copolymer Acrylamide/Sodium Acryloyldimethyltaurate Copolymer Potassium Hydroxide Tin Oxide Disodium Phosphate Citric Acid Disodium EDTA Sodium Citrate Potassium Sorbate CI 77891 Water, Dimethicone, Isododecane, Butylene Glycol, Glycerin, Polysilicone-11, Ascorbyl Glucoside, Sodium Hyaluronate, Tocopheryl Acetate, Squalane, Hypnea Musciformis Extract, Gelidiella Acerosa Extract, Sigesbeckia Orientalis Extract, Helianthus Annuus Seed Extract, Hordeum Vulgare Extract, Triticum Vulgare Germ Extract, Cucumis Sativus Fruit Extract, Caffeine, Acetyl Hexapeptide-8, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Hexapeptide-12, PEG-10 Dimethicone, Glycyrr 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. 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. 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. Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum. Due to its large size, Isohexadecane is not absorbed by the skin. Instead, it sits on top and acts as an emollient. Emollients help keep your skin soft and smooth by trapping moisture within. Isohexadecane is often used in products designed to help oily skin. It is lightweight and non-greasy while helping to moisturize. When mixed with silicones, it gives a product a silk