Revolution Beauty R-Peptide 4x4 Leave In Restore Mask Versus K18 Hair Leave-In Molecular Repair Hair Mask

Revolution Beauty R-Peptide 4x4 Leave In Restore Mask Versus K18 Hair Leave-In Molecular Repair Hair Mask Detailed comparison of Revolution Beauty R-Peptide 4x4 Leave In Restore Mask versus K18 Hair Leave-In Molecular Repair Hair Mask Original. Water Alcohol Denat. Cetearyl Alcohol Propanediol Behentrimonium Chloride Polysorbate 20 Arginine Hcl Dicaprylyl Ether Cetyl Alcohol Isododecane Maleic Acid Cannabis Sativa Seed Oil Parfum Butylene Glycol Hydrogenated Polydecene Phenoxyethanol Dimethicone Bis-PCA Dimethicone Glycerin Isopropyl Alcohol Sodium Hydroxide Sodium PCA Aminomethyl Propanol Sodium Lactate 4-PCA Dimethicone Disodium PEG-12 Dimethicone Sulfosuccinate Stearyl Alcohol Ethylhexylglycerin Arginine Aspartic Acid PCA Chenopodium Quinoa Seed Extract Glycine Alanine Serine Valine Copper Tripeptide-34 Proline Threonine Isoleucine Potassium Sorbate Sodium Benzoate Histidine Phenylalanine Tocopherol Caprylyl Glycol Hexylene Glycol Alpha-Isomethyl Ionone Benzyl Benzoate Eugenol Hexyl Cinnamal Limonene Linalool Water, Alcohol Denat., Cetearyl Alcohol, Propanediol, Behentrimonium Chloride, Polysorbate 20, Arginine Hcl, Dicaprylyl Ether, Cetyl Alcohol, Isododecane, Maleic Acid, Cannabis Sativa Seed Oil, Parfum, Butylene Glycol, Hydrogenated Polydecene, Phenoxyethanol, Dimethicone, Bis-PCA Dimethicone, Glycerin, Isopropyl Alcohol, Sodium Hydroxide, Sodium PCA, Aminomethyl Propanol, Sodium Lactate, 4-PCA Dimethicone, Disodium PEG-12 Dimethicone Sulfosuccinate, Stearyl Alcohol, Ethylhexylglycerin, Arginine, Aspartic Acid, PCA, Chenopodium Quinoa Seed Extract, Glycine, Alanine, Serine, Valine, Copper Tripeptide-34, Proline, Threonine, Isoleucine, Potassium Sorbate, Sodium Benzoate, Histidine, Phenylalanine, Tocopherol, Caprylyl Glycol, Hexylene Glycol, Alpha-Isomethyl Ionone, Benzyl Benzoate, Eugenol, Hexyl Cinnamal, Limonene, Linalool Propylene Glycol Cetyl Esters Sh-Oligopeptide-78 Hydrolyzed Wheat Protein Hydrolyzed Wheat Starch Citric Acid Geraniol Benzyl Alcohol Water, Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, Sh-Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Parfum, Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives. The "denat" part just means "denatured"; common denaturants include Denatonium Benzoate, t-butyl alcohol, and Diethyl Phthalate. This step makes the alcohol undrinkable (and lets brand skip taxes related to beverage alcohol). This ingredient gets a bad rep because it is irritating and drying due to its astringent property. Astringents draw out natural oils in tissue to constrict pores and dry out your skin. However, alcohol denat. is not all that bad. Due to its low molecular weight, alcohol denat. tends to evaporate quickly. One study on pig skin found half of applied alcohol evaporated in 10 seconds and less than 3% stayed on skin. This also helps other ingredients become better absorbed upon application. Studies are conflicted about whether this ingredient causes skin dehydration. One study from 2005 found adding emollients to propanol-based sanitizer decreased skin dryness and irritation. Another study found irritation only occurs if your skin is already damaged. Small amounts of alcohol are generally tolerated by oily skin or people who live in humid environments. The rule of thumb is this ingredient will probably not affect your skin much if it is near the end of an ingredients list. One thing to note: People with ALDH2 (aldehyde dehydrogenase 2) deficiency may experience skin irritation from continued alcohol use. About 8% of the world's population have this deficiency. The Cosmetic Ingredient Review Expert Panel has determined denatured alcohols to be safe for use in concentrations between 0.05% and 12% (depending on which denaturant is used). Also... This ingredient has antimicrobial and solvent properties. The antimicrobial property helps preserve products and increase their shelf life. As a solvent, it helps dissolve other ingredients. Look for formulas that contain glycerin, hyaluronic acid, or panthenol if you want to offset any drying effect. This ingredient will trip away your skin's natural oils/lipids that help it lock in moisture. This can worsen dryness, trigger eczema flare-ups, and aggravate rosacea. Be sure to patch test any product with this ingredient if you have dry or sensitive skin, eczema, or rosacea. This ingredient is a preservative and often used for it's anti-static properties. You'll most likely see this ingredient in hair conditioners. It does not cause irritation or sensitization in leave-on products at 1-5%. 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 th