CeraVe PM Facial Moisturizing Lotion Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum

CeraVe PM Facial Moisturizing Lotion Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum Detailed comparison of CeraVe PM Facial Moisturizing Lotion US versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum. This barrier-repair night moisturizer is formulated around Niacinamide and Ceramide NP to strengthen the skin barrier and hydrate skin. This anti-aging serum is formulated around Tripeptide-10 Citrulline and Acetyl Octapeptide-3 to soften the look of wrinkles. Water Glycerin Caprylic/Capric Triglyceride Niacinamide Cetearyl Alcohol Potassium Phosphate Ceramide NP Ceramide AP Ceramide EOP Carbomer Dimethicone Ceteareth-20 Behentrimonium Methosulfate Sodium Lauroyl Lactylate Sodium Hyaluronate Cholesterol Phenoxyethanol Disodium EDTA Dipotassium Phosphate Caprylyl Glycol Phytosphingosine Xanthan Gum Polyglyceryl-3 Diisostearate Ethylhexylglycerin Water, Glycerin, Caprylic/Capric Triglyceride, Niacinamide, Cetearyl Alcohol, Potassium Phosphate, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Dimethicone, Ceteareth-20, Behentrimonium Methosulfate, Sodium Lauroyl Lactylate, Sodium Hyaluronate, Cholesterol, Phenoxyethanol, Disodium EDTA, Dipotassium Phosphate, Caprylyl Glycol, Phytosphingosine, Xanthan Gum, Polyglyceryl-3 Diisostearate, Ethylhexylglycerin Rosa Centifolia Flower Water Isopropyl Myristate Squalane Mannitol Butylene Glycol Natto Gum Tripeptide-10 Citrulline Acetyl Octapeptide-3 Palmitoyl Hexapeptide-12 Acetyl Tetrapeptide-11 Acetyl Hexapeptide-8 Acetyl Hexapeptide-1 Palmitoyl Oligopeptide Acetyl Tetrapeptide-9 Acetyl Tetrapeptide-2 Tripeptide-1 Palmitoyl Tetrapeptide-7 Hexapeptide-11 Dipeptide Diaminobutyroyl Benzylamide Diacetate Palmitoyl Tripeptide-5 Trifluoroacetyl Tripeptide-2 Palmitoyl Tripeptide-1 Sodium Polyglutamate Tocopheryl Acetate Retinyl Palmitate Ascorbic Acid Hydrolyzed Soy Protein Hydrolyzed Wheat Protein Lecithin Pseudoalteromonas Ferment Extract Acrylates Copolymer Magnesium Chloride Polysorbate 20 Dimethyl Isosorbide Acrylates/C10-30 Alkyl Acrylate Crosspolymer Leuconostoc/Radish Root Ferment Filtrate PEG-8 Dimethicone Disodium Phosphate Dextran Sodium Lactate Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate Triethanolamine Sodium Phosphate Octyldodecanol Silica Sodium Propoxyhydroxypropyl Thiosulfate Silica Sodium Hydroxide Potassium Sorbate Sodium Benzoate Water, Glycerin, Rosa Centifolia Flower Water, Isopropyl Myristate, Squalane, Mannitol, Butylene Glycol, Natto Gum, Tripeptide-10 Citrulline, Acetyl Octapeptide-3, Palmitoyl Hexapeptide-12, Acetyl Tetrapeptide-11, Acetyl Hexapeptide-8, Acetyl Hexapeptide-1, Palmitoyl Oligopeptide, Acetyl Tetrapeptide-9, Acetyl Tetrapeptide-2, Tripeptide-1, Palmitoyl Tetrapeptide-7, Hexapeptide-11, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Palmitoyl Tripeptide-5, Trifluoroacetyl Tripeptide-2, Palmitoyl Tripeptide-1, Sodium Polyglutamate, Sodium Hyaluronate, Tocopheryl Acetate, Retinyl Palmitate, Ascorbic Acid, Hydrolyzed Soy Protein, Hydrolyzed Wheat Protein, Lecithin, Pseudoalteromonas Ferment Extract, Acrylates Copolymer, Magnesium Chloride, Polysorbate 20, Dimethyl Isosorbide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Leuconostoc/Radish Root Ferment Filtrate, PEG-8 Dimethicone, Disodium Phosphate, Carbomer, Dextran, Sodium Lactate, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Xanthan Gum, Triethanolamine, Sodium Phosphate, Octyldodecanol, Silica, Sodium Propoxyhydroxypropyl Thiosulfate Si 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. 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 on its own. Typical use concentrations range from 0.3-1% depending on the