Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

First Aid Beauty Pure Skin Face Cleanser Versus Tatcha The Deep Cleanse Exfoliating Cleanser

First Aid Beauty Pure Skin Face Cleanser Versus Tatcha The Deep Cleanse Exfoliating Cleanser Detailed comparison of First Aid Beauty Pure Skin Face Cleanser versus Tatcha The Deep Cleanse Exfoliating Cleanser. This mild cream cleanser is made to cleanse while

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First Aid Beauty Pure Skin Face Cleanser Versus Tatcha The Deep Cleanse Exfoliating Cleanser Detailed comparison of First Aid Beauty Pure Skin Face Cleanser versus Tatcha The Deep Cleanse Exfoliating Cleanser. This mild cream cleanser is made to cleanse while calming and soothing your skin. This gel cleanser uses mild cleansing ingredients, but contains alcohol that may feel drying for some. Water Sodium Cocoyl Isethionate Glycerin Stearic Acid Hydrogenated Coconut Acid Sodium Isethionate Stearyl Alcohol Allantoin Chrysanthemum Parthenium Extract Camellia Sinensis Leaf Extract Glycyrrhiza Glabra Root Extract Aloe Barbadensis Leaf Juice Tocopherol Hydrogenated Palm Glycerides Citrate Phenoxyethanol Disodium Cocoamphodiacetate Sodium PCA Hydroxypropyl Methylcellulose Coco-Glucoside Glyceryl Oleate Sodium Chloride Disodium EDTA Citric Acid Potassium Sorbate Sodium Benzoate Maltodextrin Tetrasodium EDTA Water, Sodium Cocoyl Isethionate, Glycerin, Stearic Acid, Hydrogenated Coconut Acid, Sodium Isethionate, Stearyl Alcohol, Allantoin, Chrysanthemum Parthenium Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Aloe Barbadensis Leaf Juice, Tocopherol, Hydrogenated Palm Glycerides Citrate, Phenoxyethanol, Disodium Cocoamphodiacetate, Sodium PCA, Hydroxypropyl Methylcellulose, Coco-Glucoside, Glyceryl Oleate, Sodium Chloride, Disodium EDTA, Citric Acid, Potassium Sorbate, Sodium Benzoate, Maltodextrin, Tetrasodium EDTA Sodium Cocoyl Glutamate Propanediol Acrylates Copolymer Coco-Betaine Camellia Sinensis Leaf Luffa Cylindrica Fruit/Leaf/Stem Extract Luffa Cylindrica Fruit Sodium Lauroyl Hydrolyzed Silk Rosa Multiflora Fruit Extract Belamcanda Chinensis Root Extract Potassium Hydroxide Polyglyceryl-10 Dioleate Polyglyceryl-2 Sesquicaprylate Butylene Glycol Ethylhexylglycerin Parfum Alcohol Water, Sodium Cocoyl Glutamate, Propanediol, Glycerin, Acrylates Copolymer, Coco-Betaine, Camellia Sinensis Leaf, Luffa Cylindrica Fruit/Leaf/Stem Extract, Luffa Cylindrica Fruit, Sodium Lauroyl Hydrolyzed Silk, Rosa Multiflora Fruit Extract, Belamcanda Chinensis Root Extract, Potassium Hydroxide, Sodium Chloride, Polyglyceryl-10 Dioleate, Polyglyceryl-2 Sesquicaprylate, Butylene Glycol, Ethylhexylglycerin, Tetrasodium EDTA, Parfum, Alcohol, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. 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 Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages. Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon. Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt. This ingredient has many purposes in skincare: thickener, emulsifier, and exfoliator. You'll most likely find this ingredient in cleansers where it is used to create a gel-like texture. As an emulsifier, it also prevents ingredients from separating. You might see people debate whether Sodium Chloride is comedogenic, but there actually haven't been any comedogenic tests done on it. Either way, the overall formulation of a product matters a lot more than any single ingredient. You