Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Prequel Half & Half Peptides & Ceramides Fluid Moisturizer Versus Skinfix Barrier+ Skin Barrier Restoring Gel Cream

Prequel Half & Half Peptides & Ceramides Fluid Moisturizer Versus Skinfix Barrier+ Skin Barrier Restoring Gel Cream Detailed comparison of Prequel Half & Half Peptides & Ceramides Fluid Moisturizer versus Skinfix Barrier+ Skin Barrier Restoring Gel Cream US. T

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Prequel Half & Half Peptides & Ceramides Fluid Moisturizer Versus Skinfix Barrier+ Skin Barrier Restoring Gel Cream Detailed comparison of Prequel Half & Half Peptides & Ceramides Fluid Moisturizer versus Skinfix Barrier+ Skin Barrier Restoring Gel Cream US. This barrier-repair moisturizer is formulated around Ceramide NP and Hexapeptide-11 to strengthen the skin barrier and soften the look of wrinkles. This barrier-repair moisturizer is formulated around Squalane and Niacinamide to strengthen the skin barrier and hydrate skin. 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 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 Jojoba Oil/Macadamia Seed Oil Esters Triheptanoin Niacinamide Saccharide Isomerate Squalene Zinc PCA Hydrolyzed Hyaluronic Acid Camellia Sinensis Seed Extract Allantoin Phytosteryl Macadamiate Phytosterols Acetyl Glutamine Lecithin Amylopectin Sodium Hyaluronate Folic Acid Oligopeptide-3 Bacillus/Soybean Ferment Extract Oligopeptide-1 Oligopeptide-2 Lithothamnion Calcareum Extract Lactic Acid Glucose Acetyl Heptapeptide-4 C14-22 Alcohols C12-20 Alkyl Glucoside Trisodium Ethylenediamine Disuccinate Potassium Sorbate Sodium Citrate Pentylene Glycol Water, Squalane, Propanediol, Jojoba Oil/Macadamia Seed Oil Esters, Triheptanoin, Niacinamide, Saccharide Isomerate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Squalene, Zinc PCA, Hydrolyzed Hyaluronic Acid, Glycerin, Camellia Sinensis Seed Extract, Allantoin, Phytosteryl Macadamiate, Phytosterols, Acetyl Glutamine, Lecithin, Caprylyl Glycol, Amylopectin, Sodium Hyaluronate, Folic Acid, Oligopeptide-3, Bacillus/Soybean Ferment Extract, Oligopeptide-1, Oligopeptide-2, Hexapeptide-11, Tocopherol, Lithothamnion Calcareum Extract, Lactic Acid, Glucose, Acetyl Heptapeptide-4, C14-22 Alcohols, C12-20 Alkyl Glucoside, Ethylhexylglycerin, Trisodium Ethylenediamine Disuccinate, Potassium Sorbate, Citric Acid, Sodium Citrate, Pentylene Glycol, Sodium Benzoate, Xanthan Gum, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ammonium Acryloyldimethyltaurate/Vp Copolymer is a synthetically created polymer. It's used as a film-forming agent and used to thicken the consistency of products. Think of it as a supportive ingredient that helps your gel-creams feel silky, "cloud cream-like", and spread evenly without being greasy. The Cosmetic Ingredient Review (CIR) Expert Panel evaluated it (along with 22 other acryloyldimethyltaurate polymers) and concluded it's: Due to its large molecular size, it sits on the surface of skin rather than penetrating it. 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). 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 naturall