Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide Versus L'Oreal Revitalift Laser Renew Retinol + Niacinamide Pressed Night Cream

Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide Versus L'Oreal Revitalift Laser Renew Retinol + Niacinamide Pressed Night Cream Detailed comparison of Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide versus L'Oreal Revitalift Laser Renew Retinol + Niacinamide Pressed Night Cream. This anti-aging serum is formulated around Niacinamide and Ceramide NP to soften the look of wrinkles and refine skin texture. This anti-aging night moisturizer is formulated around Niacinamide and Acetyl Dipeptide-1 Cetyl Ester 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 Aluminum Starch Octenylsuccinate Caprylic/Capric Triglyceride Panthenol Retinyl Palmitate Acrylates/Beheneth-25 Methacrylate Copolymer Polyglyceryl-3 Methylglucose Distearate Sodium Polyacrylate Dimethicone Benzyl Alcohol Citronellol Isoeugenol Limonene Linalool Parfum Water, Butylene Glycol, Glycerin, Niacinamide, Isononyl Isononanoate, Glycine Soja Oil, Aluminum Starch Octenylsuccinate, Caprylic/Capric Triglyceride, Acetyl Dipeptide-1 Cetyl Ester, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Sodium Hyaluronate, Trisodium Ethylenediamine Disuccinate, Panthenol, Retinol, Retinyl Palmitate, Acrylates/Beheneth-25 Methacrylate Copolymer, Hydroxyethylcellulose, Polyglyceryl-3 Methylglucose Distearate, Sodium Polyacrylate, Sorbitan Laurate, Tocopherol, Dimethicone, Benzyl Alcohol, Citronellol, Isoeugenol, Limonene, Linalool, Caprylyl Glycol, Chlorphenesin, Phenoxyethanol, Parfum These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Acetyl Dipeptide-1 Cetyl Ester is a peptide composed of amino acids arginine and tyrosine. This peptide is considered a neurotransmitter peptide, meaning it has pain-relieving and relaxing properties. It has the ability to calm skin irritation from external factors such as chemical stinging or heat. Neurotransmitter peptides are also often called "botox in a bottle". This is because these peptides have the ability to relax the muscles. Though relaxing the muscles can prevent expression lines (as we have seen in botox), the studies do not show these peptides to be a botox replacement. The effects of this muscle relaxation is also short-term, as opposed to longer-term results from botox. 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). Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol. Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria. Chlorphenesin is soluble in both water and glycerin. Studies show Chlorphenesin is easily absorbed by our skin. You should speak with a skincare professional if you have concerns about using Chlorphenesin. 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 America