Necessaire The Shampoo Versus K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo

Necessaire The Shampoo Versus K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Detailed comparison of Necessaire The Shampoo versus K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo. Water Sodium Lauroyl Methyl Isethionate Aloe Barbadensis Leaf Juice Cocamidopropyl Betaine Sodium Methyl Oleoyl Taurate Sodium Cocoyl Isethionate Propanediol Niacinamide Sodium Hyaluronate Panthenol Apium Graveolens Seed Extract Persea Gratissima Oil Glycerin Disodium Cocoyl Glutamate Caprylic/Capric Triglyceride Citric Acid Caprylhydroxamic Acid Sodium Chloride 1,2-Hexanediol Caprylyl Glycol Sodium Benzoate Water, Sodium Lauroyl Methyl Isethionate, Aloe Barbadensis Leaf Juice, Cocamidopropyl Betaine, Sodium Methyl Oleoyl Taurate, Sodium Cocoyl Isethionate, Propanediol, Niacinamide, Sodium Hyaluronate, Panthenol, Apium Graveolens Seed Extract, Persea Gratissima Oil, Glycerin, Disodium Cocoyl Glutamate, Caprylic/Capric Triglyceride, Citric Acid, Caprylhydroxamic Acid, Sodium Chloride, 1,2-Hexanediol, Caprylyl Glycol, Sodium Benzoate Sodium C14-16 Olefin Sulfonate Sodium Methyl 2-Sulfolaurate Sodium Lauryl Sulfoacetate Sh-Oligopeptide-78 Sodium Phytate Guar Hydroxypropyltrimonium Chloride Disodium 2-Sulfolaurate Benzoic Acid Sodium Hydroxide Parfum 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. Caprylhydroxamic Acid is a chelating agent that helps cosmetics stay fresh, stable, and consistent over time. Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted reactions and effects from using the product. It also helps prevent the growth of unwanted microbes in products that contain water. Caprylhydroxamic Acid is often used with natural antimicrobial products as an alternative to preservatives. 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. 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 Cocamido