Davines Volu Shampoo Versus K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo

Davines Volu Shampoo Versus K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Detailed comparison of Davines Volu Shampoo versus K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo. No key ingredients Water Sodium C14-16 Olefin Sulfonate Sodium Lauroyl Methyl Isethionate Cocamidopropyl Betaine Sodium PCA Decyl Glucoside Sodium Methyl 2-Sulfolaurate Glyceryl Oleate Coco-Glucoside Lauramidopropylamine Oxide Benzyl Alcohol Polysorbate 20 Sodium Chloride Panthenol Parfum Sodium Benzoate Myristamidopropylamine Oxide Disodium 2-Sulfolaurate Citric Acid Polyquaternium-7 Trisodium Ethylenediamine Disuccinate Guar Hydroxypropyltrimonium Chloride Glycerin Tetrasodium Glutamate Diacetate Brassica Rapa Root Extract Linalool CI 60730 CI 60725 Water, Sodium C14-16 Olefin Sulfonate, Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Betaine, Sodium PCA, Decyl Glucoside, Sodium Methyl 2-Sulfolaurate, Glyceryl Oleate, Coco-Glucoside, Lauramidopropylamine Oxide, Benzyl Alcohol, Polysorbate 20, Sodium Chloride, Panthenol, Parfum, Sodium Benzoate, Myristamidopropylamine Oxide, Disodium 2-Sulfolaurate, Citric Acid, Polyquaternium-7, Trisodium Ethylenediamine Disuccinate, Guar Hydroxypropyltrimonium Chloride, Glycerin, Tetrasodium Glutamate Diacetate, Brassica Rapa Root Extract, Linalool, CI 60730, CI 60725 Sodium Lauryl Sulfoacetate Sh-Oligopeptide-78 Sodium Phytate Caprylyl Glycol Caprylhydroxamic Acid Benzoic Acid Sodium Hydroxide Limonene Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl 2-Sulfolaurate, Sodium Lauryl Sulfoacetate, Sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Disodium 2-Sulfolaurate, Caprylyl Glycol, Caprylhydroxamic Acid, Benzoic Acid, Citric Acid, Sodium Hydroxide, Parfum, Limonene 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. Cocamidopropyl Betaine is a fatty acid created by mixing similar compounds in coconut oil and dimethylaminopropylamine, a compound with two amino groups. This ingredient is a surfactant and cleanser. It helps gather the dirt, pollutants, and other impurities in your skin to be washed away. It also helps thicken a product and make the texture more creamy. Being created from coconut oil means Cocamidopropyl Betaine is hydrating for the skin. While Cocamidopropyl Betaine was believed to be an allergen, a study from 2012 disproved this. It found two compounds in unpure Cocamidopropyl Betaine to be the irritants: aminoamide and 3-dimethylaminopropylamine. High-grade and pure Cocamidopropyl Betaine did not induce allergic reactions during this study. We don't have a description for Disodium 2-Sulfolaurate yet. 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-ir