Olehenriksen Strength Trainer Peptide Boost Moisturizer Versus Avène XeraCalm A.D Lipid-Replenishing Cream

Olehenriksen Strength Trainer Peptide Boost Moisturizer Versus Avène XeraCalm A.D Lipid-Replenishing Cream Detailed comparison of Olehenriksen Strength Trainer Peptide Boost Moisturizer versus Avène XeraCalm A.D Lipid-Replenishing Cream. This barrier-repair moisturizer is formulated around Niacinamide and Acetyl Hexapeptide-8 to strengthen the skin barrier and soften the look of wrinkles. This barrier-repair moisturizer is formulated around Oenothera Biennis Oil and Aquaphilus Dolomiae Extract to strengthen the skin barrier. Water Propanediol Dicaprylyl Carbonate Glycerin Methylpropanediol Cetearyl Alcohol Stearyl Alcohol Mangifera Indica Seed Butter Niacinamide Acetyl Hexapeptide-1 Acetyl Hexapeptide-8 Acetyl Octapeptide-3 Acetyl Tetrapeptide-2 Acetyl Dipeptide-1 Cetyl Ester Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Carnosine Ceramide NP Ceramide AP Ceramide EOP Collagen Serine Alanine Glycine Glutamic Acid Lysine Hcl Threonine Arginine Proline Hyaluronic Acid Sodium Hyaluronate Linoleic Acid Linolenic Acid Sodium PCA Sodium Lactate Panthenol Tocopherol Tocopheryl Acetate Betaine PCA Cyanocobalamin Xylitol Anhydroxylitol Xylitylglucoside Sorbitan Olivate Carbomer Hydroxyethylcellulose Xanthan Gum Cetearyl Olivate Sorbitan Laurate Phytosphingosine Cholesterol Polysorbate 60 Butylene Glycol Hydroxyacetophenone Glycine Soja Oil Acrylates/C10-30 Alkyl Acrylate Crosspolymer Polysorbate 20 Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer Dimethicone Sodium Phytate Sodium Lauroyl Lactylate Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Leuconostoc/Radish Root Ferment Filtrate Citric Acid Caprylyl Glycol Ethylhexylglycerin Phenoxyethanol Parfum Citral Limonene Linalool Water, Propanediol, Dicaprylyl Carbonate, Glycerin, Methylpropanediol, Cetearyl Alcohol, Stearyl Alcohol, Mangifera Indica Seed Butter, Niacinamide, Acetyl Hexapeptide-1, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2, Acetyl Dipeptide-1 Cetyl Ester, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Carnosine, Ceramide NP, Ceramide AP, Ceramide EOP, Collagen, Serine, Alanine, Glycine, Glutamic Acid, Lysine Hcl, Threonine, Arginine, Proline, Hyaluronic Acid, Sodium Hyaluronate, Linoleic Acid, Linolenic Acid, Sodium PCA, Sodium Lactate, Panthenol, Tocopherol, Tocopheryl Acetate, Betaine, PCA, Cyanocobalamin, Xylitol, Anhydroxylitol, Xylitylglucoside, Sorbitan Olivate, Carbomer, Hydroxyethylcellulose, Xanthan Gum, Cetearyl Olivate, Sorbitan Laurate, Phytosphingosine, Cholesterol, Polysorbate 60, Butylene Glycol, Hydroxyacetophenone, Glycine Soja Oil, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 20, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Dimethicone, Sodium Phytate, Sodium Lauroyl Lactylate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Leuconostoc/Radish Root Ferment Filtrate, Citric Acid, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Parfum, Citral, Limonene, Linalool Paraffinum Liquidum Oenothera Biennis Oil Caprylic/Capric Triglyceride Cetearyl Glucoside Aquaphilus Dolomiae Extract Evening Primrose Oil/Palm Oil Aminopropanediol Esters Sodium Hydroxide Water, Glycerin, Paraffinum Liquidum, Cetearyl Alcohol, Oenothera Biennis Oil, Caprylic/Capric Triglyceride, Cetearyl Glucoside, Aquaphilus Dolomiae Extract, Arginine, Carbomer, Evening Primrose Oil/Palm Oil Aminopropanediol Esters, Glycine, Sodium Hydroxide, Tocopherol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Arginine is a semi-essential amino acid. This just means our bodies can product a bit on its own, but sometimes needs a little boost from food sources. It is a part of your skin's natural moisturizing factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy. Here's an interesting thing about Arginine: your skin converts it into urea through the Krebs-Henseleit urea cycle. Urea is one of the most effective humectants your skin naturally produces. A clinical study showed applying 2.5% arginine hydrochloride to atopic dermatitis skin showed significant urea levels in the stratum corneum and improved moisture in just four weeks. Arginine is also a precursor to nitric oxide; nitric oxide improves microcirculation and supports wound healing and collagen synthesis. One study found that an amino acid complex containing Arginine reduced skin irritation, improved hydration, and accelerated skin repair in clinical / in-vivo studies. Arginine itself is an amino acid and not a fatty acid, oil, or ester. On its own, it's not a direct food source for Malassezia, or the yeast that causes fungal acne. 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. Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier. Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient. It plays several roles in a formula: Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products. Multiple assessments have found it to be non-irritating and non-sensitizing to most people. However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers. Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy. Here's the catch: rabbit skin