Peptide Skincare & BeautySkin science and ingredient guides

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Prequel Urea Advanced Relief Moisturizing Milk For Face And Body Versus Prequel Half & Half Peptides & Ceramides Fluid Moisturizer

Prequel Urea Advanced Relief Moisturizing Milk For Face And Body Versus Prequel Half & Half Peptides & Ceramides Fluid Moisturizer Detailed comparison of Prequel Urea Advanced Relief Moisturizing Milk For Face And Body versus Prequel Half & Half Peptides & Cer

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Prequel Urea Advanced Relief Moisturizing Milk For Face And Body Versus Prequel Half & Half Peptides & Ceramides Fluid Moisturizer Detailed comparison of Prequel Urea Advanced Relief Moisturizing Milk For Face And Body versus Prequel Half & Half Peptides & Ceramides Fluid Moisturizer. This barrier-repair moisturizer is formulated around Urea and Niacinamide to strengthen the skin barrier and hydrate skin. This barrier-repair moisturizer is formulated around Ceramide NP and Hexapeptide-11 to strengthen the skin barrier and soften the look of wrinkles. Water Urea Ethylhexyl Stearate Caprylic/Capric Triglyceride Glycerin Butyrospermum Parkii Butter Cyclopentasiloxane C12-15 Alkyl Benzoate Polyglyceryl-6 Distearate Sodium Citrate Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Cetearyl Alcohol Dimethicone Jojoba Esters Niacinamide Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters C15-19 Alkane Phenoxyethanol Potassium Cetyl Phosphate Citric Acid Lauryl Glucoside Ethylhexylglycerin Tetrasodium Glutamate Diacetate Tocopherol Water, Urea, Ethylhexyl Stearate, Caprylic/Capric Triglyceride, Glycerin, Butyrospermum Parkii Butter, Cyclopentasiloxane, C12-15 Alkyl Benzoate, Polyglyceryl-6 Distearate, Sodium Citrate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cetearyl Alcohol, Dimethicone, Jojoba Esters, Niacinamide, Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters, C15-19 Alkane, Phenoxyethanol, Potassium Cetyl Phosphate, Citric Acid, Lauryl Glucoside, Ethylhexylglycerin, Tetrasodium Glutamate Diacetate, Tocopherol Propanediol Isopropyl Myristate Ethylhexyl Olivate Squalane Hydrolyzed Rice Protein Ceramide NP Ceramide As Ceramide Ns Ceramide EOP Ceramide AP Hexapeptide-11 Matrixyl 3000 Polyglyceryl-10 Stearate Triolein Ammonium Acryloyldimethyltaurate/Vp Copolymer Glyceryl Oleate Undecane Hydroxyacetophenone Glyceryl Dioleate Caprylyl Glycol Xanthan Gum Tridecane Betaine Sodium Stearoyl Glutamate Sodium Phytate Sodium PCA Sodium Hydroxide Sodium Lactate PCA Sodium Benzoate Serine Alanine Palmitic Acid Glycine Hydrogenated Lecithin Ethylhexyl Palmitate Butylene Glycol Glutamic Acid Lysine Hcl Threonine Arginine Proline Carbomer Polysorbate 20 Water, Glycerin, Propanediol, Isopropyl Myristate, Ethylhexyl Olivate, Squalane, Hydrolyzed Rice Protein, Ceramide NP, Ceramide As, Ceramide Ns, Ceramide EOP, Ceramide AP, Hexapeptide-11, Matrixyl 3000, Polyglyceryl-10 Stearate, Triolein, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Glyceryl Oleate, Undecane, Hydroxyacetophenone, Glyceryl Dioleate, Caprylyl Glycol, Xanthan Gum, Tridecane, Betaine, Sodium Stearoyl Glutamate, Citric Acid, Sodium Phytate, Sodium PCA, Sodium Hydroxide, Sodium Lactate, PCA, Sodium Benzoate, Serine, Alanine, Palmitic Acid, Glycine, Hydrogenated Lecithin, Ethylhexyl Palmitate, Butylene Glycol, Phenoxyethanol, Ethylhexylglycerin, Glutamic Acid, Lysine Hcl, Threonine, Arginine, Proline, Tocopherol, Carbomer, Polysorbate 20 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. 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. Phenoxyethano