K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Versus BrioGeo Don't Despair, Repair! Super Moisture Shampoo

K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Versus BrioGeo Don't Despair, Repair! Super Moisture Shampoo Detailed comparison of K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo versus BrioGeo Don't Despair, Repair! Super Moisture Shampoo. 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 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 Sodium Cocoyl Isethionate Lauramidopropyl Betaine Cocamidopropyl Hydroxysultaine Disodium Laureth Sulfosuccinate Glyceryl Stearate Glycol Distearate Butyrospermum Parkii Butter Cocos Nucifera Oil Rosa Canina Fruit Oil Biotin Glycine Soja Oil Tilia Tomentosa Extract Sargassum Filipendula Extract Phospholipids Glycolipids Glycine Soja Sterols Santalum Album Oil Amyris Balsamifera Bark Oil Pogostemon Cablin Leaf Oil Elettaria Cardamomum Seed Oil Ferula Galbaniflua Resin Oil Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol Sodium Lauroyl Sarcosinate Tocopheryl Acetate Tetrasodium Glutamate Diacetate Dehydroacetic Acid Benzyl Alcohol Water, Sodium Cocoyl Isethionate, Lauramidopropyl Betaine, Cocamidopropyl Hydroxysultaine, Sodium C14-16 Olefin Sulfonate, Disodium Laureth Sulfosuccinate, Glyceryl Stearate, Glycol Distearate, Butyrospermum Parkii Butter, Cocos Nucifera Oil, Rosa Canina Fruit Oil, Biotin, Panthenol, Glycerin, Glycine Soja Oil, Tilia Tomentosa Extract, Sargassum Filipendula Extract, Phospholipids, Glycolipids, Glycine Soja Sterols, Santalum Album Oil, Amyris Balsamifera Bark Oil, Pogostemon Cablin Leaf Oil, Elettaria Cardamomum Seed Oil, Ferula Galbaniflua Resin Oil, Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol, Sodium Lauroyl Sarcosinate, Tocopheryl Acetate, Tetrasodium Glutamate Diacetate, Sodium Lauryl Sulfoacetate, Guar Hydroxypropyltrimonium Chloride, Citric Acid, Parfum, Dehydroacetic Acid, Benzyl Alcohol 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. 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-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine. This ingredient is derived from guar gum. It is a skin conditioning agent that creates a thin, breathable film to reduce water loss during cleansing. This leaves the skin feeling soft rather than stripped and also contributes to a creamier lather. Due to the large molecule size, this ingredient is unlikely to penetrate skin. Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair. There are two forms of pa