Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

IntraCeuticals Collagen Serum Versus Curology The Moisturizer

IntraCeuticals Collagen Serum Versus Curology The Moisturizer Detailed comparison of IntraCeuticals Collagen Serum versus Curology The Moisturizer. This anti-aging serum is formulated around Palmitoyl Oligopeptide and Palmitoyl Tetrapeptide-7 to soften the loo

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IntraCeuticals Collagen Serum Versus Curology The Moisturizer Detailed comparison of IntraCeuticals Collagen Serum versus Curology The Moisturizer. This anti-aging serum is formulated around Palmitoyl Oligopeptide and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and hydrate skin. This barrier-repair moisturizer is formulated around Dimethicone and Polysilicone-11 to strengthen the skin barrier and hydrate skin. Water Glycerin Soluble Collagen Sodium Hyaluronate Anogeissus Leiocarpus Bark Extract Palmitoyl Oligopeptide Palmitoyl Tetrapeptide-7 Propanediol Butylene Glycol Vegetable Oil 1,2-Hexanediol Caprylyl Glycol Dicaprylyl Ether Polyacrylate Crosspolymer-6 Polyglyceryl-2 Dipolyhydroxystearate Lauryl Glucoside Tetrasodium Glutamate Diacetate Citric Acid Dicaprylyl Carbonate Glyceryl Oleate Carbomer Polysorbate 20 Sodium Benzoate Water, Glycerin, Soluble Collagen, Sodium Hyaluronate, Anogeissus Leiocarpus Bark Extract, Palmitoyl Oligopeptide, Palmitoyl Tetrapeptide-7, Propanediol, Butylene Glycol, Vegetable Oil, 1,2-Hexanediol, Caprylyl Glycol, Dicaprylyl Ether, Polyacrylate Crosspolymer-6, Polyglyceryl-2 Dipolyhydroxystearate, Lauryl Glucoside, Tetrasodium Glutamate Diacetate, Citric Acid, Dicaprylyl Carbonate, Glyceryl Oleate, Carbomer, Polysorbate 20, Sodium Benzoate Dimethicone Polysilicone-11 Cetearyl Olivate Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Sorbitan Olivate Polyisobutene Aminomethyl Propanol Caprylhydroxamic Acid Disodium EDTA Dimethiconol Caprylyl/Capryl Glucoside Decyl Glucoside Water, Dimethicone, Glycerin, Propanediol, Polysilicone-11, Cetearyl Olivate, Butylene Glycol, 1,2-Hexanediol, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sorbitan Olivate, Polyisobutene, Carbomer, Aminomethyl Propanol, Citric Acid, Caprylhydroxamic Acid, Disodium EDTA, Sodium Hyaluronate, Dimethiconol, Caprylyl/Capryl Glucoside, Decyl Glucoside These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives 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. 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. 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. Glycerin (or glycerol) is a