K18 Hair Leave-In Molecular Repair Hair Mask Versus COSRX Peptide-132 Ultra Perfect Hair Bonding Treatment

K18 Hair Leave-In Molecular Repair Hair Mask Versus COSRX Peptide-132 Ultra Perfect Hair Bonding Treatment Detailed comparison of K18 Hair Leave-In Molecular Repair Hair Mask Original versus COSRX Peptide-132 Ultra Perfect Hair Bonding Treatment. 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 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 Glycerin Dimethicone Cetyl Ethylhexanoate Isopentyldiol Cetyl Alcohol Stearyl Alcohol Coco-Caprylate/Caprate Stearamidopropyl Dimethylamine Sorbitol Dipropylene Glycol Dimethiconol Hydroxypropyl Starch Phosphate Amodimethicone Lactic Acid Maltitol Caprylyl Glycol Trideceth-10 Sodium Gluconate Ethylhexylglycerin Anthemis Nobilis Flower Water 1,2-Hexanediol Propanediol Argania Spinosa Kernel Oil Olea Europaea Fruit Oil Camellia Japonica Seed Oil Simmondsia Chinensis Seed Oil Oryza Sativa Bran Oil Vitis Vinifera Seed Oil Biotin Tripeptide-13 Macadamia Ternifolia Seed Oil Sodium Hyaluronate Laminaria Japonica Extract Sodium Metaphosphate Avena Sativa Peptide Arginine Serine Glutamic Acid Threonine Leucine Proline Aspartic Acid Isoleucine Glycine Soluble Collagen Hydrolyzed Hyaluronic Acid Phenylalanine Alanine Tyrosine Lysine Sodium Hyaluronate Crosspolymer Histidine Hyaluronic Acid Caffeine Panthenol Niacinamide Hydrogenated Lecithin Butylene Glycol Valine Sodium Acetylated Hyaluronate Stearic Acid Methionine Cystine Tryptophan Ceramide NP Hydrolyzed Vegetable Protein Ceramide Ns Phytosphingosine Cholesterol Ceramide AP Ceramide As Ceramide EOP Water, Glycerin, Dimethicone, Cetyl Ethylhexanoate, Isopentyldiol, Cetyl Alcohol, Stearyl Alcohol, Behentrimonium Chloride, Coco-Caprylate/Caprate, Stearamidopropyl Dimethylamine, Sorbitol, Dipropylene Glycol, Dimethiconol, Hydroxypropyl Starch Phosphate, Amodimethicone, Lactic Acid, Maltitol, Parfum, Caprylyl Glycol, Trideceth-10, Sodium Gluconate, Ethylhexylglycerin, Anthemis Nobilis Flower Water, 1,2-Hexanediol, Propanediol, Argania Spinosa Kernel Oil, Olea Europaea Fruit Oil, Camellia Japonica Seed Oil, Simmondsia Chinensis Seed Oil, Oryza Sativa Bran Oil, Vitis Vinifera Seed Oil, Biotin, Tripeptide-13, Macadamia Ternifolia Seed Oil, Sodium Hyaluronate, Tocopherol, Laminaria Japonica Extract, Sodium Metaphosphate, Avena Sativa Peptide, Arginine, Serine, Glutamic Acid, Threonine, Leucine, Proline, Aspartic Acid, Isoleucine, Glycine, Soluble Collagen, Hydrolyzed Hyaluronic Acid, Phenylalanine, Alanine, Tyrosine, Lysine, Sodium Hyaluronate Crosspolymer, Histidine, Hyaluronic Acid, Caffeine, Panthenol, Niacinamide, Hydrogenated Lecithin, Butylene Glycol, Cetearyl Alcohol, Valine, Sodium Acetylated Hyaluronate, Stearic Acid, Methionine, Cystine, Tryptophan, Cer 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. 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 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 is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans. Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on your skin. Just be sure to patch test if you are unsure about certain ingredients. This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize. A 2019 study has also observed Malassezia growth in the presence of this ingredient, confirming it to be not-fungal acne safe. Parfum is a catch-all term for an ingredient or more that is used to give a scent to products. Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture. For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations. The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards. One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or '