Prequel Reactive Skin Solutions 5% Ectoin Cream Versus The INKEY List Ectoin Hydro-Barrier Serum

Prequel Reactive Skin Solutions 5% Ectoin Cream Versus The INKEY List Ectoin Hydro-Barrier Serum Detailed comparison of Prequel Reactive Skin Solutions 5% Ectoin Cream versus The INKEY List Ectoin Hydro-Barrier Serum. This barrier-repair treatment is formulated around Ectoin and Urea to strengthen the skin barrier and calm redness. This barrier-repair serum is formulated around Ectoin and Panthenol to strengthen the skin barrier and hydrate skin. Water Cetearyl Alcohol Ectoin Urea Cetearyl Isononanoate Glycerin Simmondsia Chinensis Seed Oil Pentylene Glycol Hydrogenated Polydecene Hydroxyethyl Urea Triacetin Panthenol Lecithin Allantoin Sodium Cetearyl Sulfate Xanthan Gum Cetearyl Glucoside Sodium Lactate Ethylhexylglycerin Water, Cetearyl Alcohol, Ectoin, Urea, Cetearyl Isononanoate, Glycerin, Simmondsia Chinensis Seed Oil, Pentylene Glycol, Hydrogenated Polydecene, Hydroxyethyl Urea, Triacetin, Panthenol, Lecithin, Allantoin, Sodium Cetearyl Sulfate, Xanthan Gum, Cetearyl Glucoside, Sodium Lactate, Ethylhexylglycerin Propanediol Caprylic/Capric Triglyceride Coconut Alkanes Ectoin 2% Hydrolyzed Sodium Hyaluronate Sodium Hyaluronate Maltodextrin Phenoxyethanol Sodium Stearoyl Glutamate Sclerotium Gum Glyceryl Stearate Jojoba Esters Coco-Caprylate/Caprate Sodium Citrate Helianthus Annuus Seed Wax Citric Acid Polyglyceryl-10 Stearate Avena Sativa Kernel Extract Leuconostoc/Radish Root Ferment Filtrate Triethyl Citrate Polyglyceryl-6 Behenate Sodium Hyaluronate Crosspolymer Ceramide NP Hyaluronic Acid Ceramide AP Cholesterol Phytosphingosine Behenic Acid Sodium Levulinate Polyglycerin-3 Potassium Sorbate Ceramide EOP Water, Propanediol, Caprylic/Capric Triglyceride, Coconut Alkanes, Ectoin 2%, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate, Maltodextrin, Phenoxyethanol, Sodium Stearoyl Glutamate, Panthenol, Cetearyl Alcohol, Sclerotium Gum, Xanthan Gum, Glyceryl Stearate, Jojoba Esters, Coco-Caprylate/Caprate, Ethylhexylglycerin, Sodium Citrate, Helianthus Annuus Seed Wax, Citric Acid, Polyglyceryl-10 Stearate, Avena Sativa Kernel Extract, Glycerin, Leuconostoc/Radish Root Ferment Filtrate, Triethyl Citrate, Pentylene Glycol, Polyglyceryl-6 Behenate, Sodium Hyaluronate Crosspolymer, Ceramide NP, Hyaluronic Acid, Ceramide AP, Cholesterol, Phytosphingosine, Behenic Acid, Sodium Levulinate, Polyglycerin-3, Potassium Sorbate, Sodium Cetearyl Sulfate, Ceramide EOP These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Ectoin is a compound found naturally in some species of bacteria. It can be synthetically created for skincare use. This ingredient is an osmolyte; Osmolytes help organisms survive osmotic shock (it protects them from extreme conditions). It does this by influencing the properties of biological fluids within cells. When applied to the skin, ectoin helps bind water molecules to protect our skin. The water forms a sort of armor for the parts of our skin cells, enzymes, proteins, and more. Besides this, ectoin has many uses in skincare: A study from 2004 found ectoin to counteract the damage from UV-A exposure at different cell levels. It has also been shown to protect skin against both UV-A, UV-B rays, infrared light, and visible light. Studies show ectoin to have dual-action pollution protection: first, it protects our skin from further pollution damage. Second, it helps repair damage from pollution. In fact, ectoin has been shown to help with: Fun fact: In the EU, ectoin is used in inhalation medication as an anti-pollution ingredient. Ectoin is a highly stable ingredient. It has a wide pH range of 1-9. Light, oxygen, and temperature do not affect this ingredient. The chemical name for this ingredient is Tetrahydromethylpyrimidi