EltaMD, Inc UV Shield Broad-Spectrum SPF 45 Versus The INKEY List Polyglutamic Acid Dewy Sunscreen SPF 30

EltaMD, Inc UV Shield Broad-Spectrum SPF 45 Versus The INKEY List Polyglutamic Acid Dewy Sunscreen SPF 30 Detailed comparison of EltaMD, Inc UV Shield Broad-Spectrum SPF 45 versus The INKEY List Polyglutamic Acid Dewy Sunscreen SPF 30. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 45. This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. Zinc Oxide 9% Ethylhexyl Methoxycinnamate 7.5% Water Isopropyl Palmitate Ethylhexyl Stearate Cetearyl Alcohol Polysorbate 60 Oleth-3 Phosphate Phenoxyethanol Cetearyl Glucoside Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Polyisobutene Polyether-1 Butylene Glycol PEG-7 Trimethylolpropane Coconut Ether Tocopheryl Acetate Citric Acid Iodopropynyl Butylcarbamate Triethoxycaprylylsilane Zinc Oxide 9%, Ethylhexyl Methoxycinnamate 7.5%, Water, Isopropyl Palmitate, Ethylhexyl Stearate, Cetearyl Alcohol, Polysorbate 60, Oleth-3 Phosphate, Phenoxyethanol, Cetearyl Glucoside, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyisobutene, Polyether-1, Butylene Glycol, PEG-7 Trimethylolpropane Coconut Ether, Tocopheryl Acetate, Citric Acid, Iodopropynyl Butylcarbamate, Triethoxycaprylylsilane Octocrylene Glycerin Ethylhexyl Salicylate Coco-Caprylate/Caprate Butyl Methoxydibenzoylmethane Phenylbenzimidazole Sulfonic Acid Triheptanoin Saccharomyces Ferment Glyceryl Stearate Se Tromethamine Glyceryl Caprylate Propanediol C9-12 Alkane Dilinoleic Acid/Butanediol Copolymer Sodium Stearoyl Glutamate Dimethicone Squalane Hectorite Lauroyl Lysine Hydroxyethylcellulose Caprylhydroxamic Acid Dimethiconol Acrylates/C10-30 Alkyl Acrylate Crosspolymer Oryza Sativa Hull Extract Castor Oil/Ipdi Copolymer Polyglutamic Acid Sorbitan Isostearate Camellia Sinensis Leaf Extract Ipomoea Batatas Root Extract Hydroxyacetophenone Sodium Benzoate 1,2-Hexanediol Caprylyl Glycol Lactobacillus Ferment Lysate Saccharomyces Lysate Water, Octocrylene, Glycerin, Ethylhexyl Salicylate, Coco-Caprylate/Caprate, Butyl Methoxydibenzoylmethane, Phenylbenzimidazole Sulfonic Acid, Triheptanoin, Saccharomyces Ferment, Cetearyl Alcohol, Glyceryl Stearate Se, Tromethamine, Glyceryl Caprylate, Propanediol, C9-12 Alkane, Dilinoleic Acid/Butanediol Copolymer, Sodium Stearoyl Glutamate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Dimethicone, Squalane, Hectorite, Lauroyl Lysine, Hydroxyethylcellulose, Caprylhydroxamic Acid, Dimethiconol, Polysorbate 60, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Oryza Sativa Hull Extract, Castor Oil/Ipdi Copolymer, Phenoxyethanol, Polyglutamic Acid, Sorbitan Isostearate, Camellia Sinensis Leaf Extract, Ipomoea Batatas Root Extract, Hydroxyacetophenone, Sodium Benzoate, 1,2-Hexanediol, Caprylyl Glycol, Lactobacillus Ferment Lysate, Saccharomyces Lysate 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. This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel. It is also an emulsifer, meaning it prevents ingredients such as oil and water from separating. It also helps evenly disperse other ingredients. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own. Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU. Safety-wise, the fear mongering does not hold up to the evidence. The EU's