Peptide Skincare & BeautySkin science and ingredient guides

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Tatcha The Dewy Skin Cream Versus First Aid Beauty Ultra Repair Cream Intense Hydration

Tatcha The Dewy Skin Cream Versus First Aid Beauty Ultra Repair Cream Intense Hydration Detailed comparison of Tatcha The Dewy Skin Cream versus First Aid Beauty Ultra Repair Cream Intense Hydration. This barrier-repair moisturizer is formulated around Sacchar

This source-based comparison does not add ratings or recommend a winner.

Tatcha The Dewy Skin Cream Versus First Aid Beauty Ultra Repair Cream Intense Hydration Detailed comparison of Tatcha The Dewy Skin Cream versus First Aid Beauty Ultra Repair Cream Intense Hydration. This barrier-repair moisturizer is formulated around Saccharomyces/Rice Ferment Filtrate and Squalane to strengthen the skin barrier and hydrate skin. This calming moisturizer is formulated around Colloidal Oatmeal and Squalane to calm redness and hydrate skin. Water Saccharomyces/Rice Ferment Filtrate Glycerin Propanediol Dimethicone Squalane Diisostearyl Malate Behenyl Alcohol Myristyl Myristate Dipentaerythrityl Hexahydroxystearate Bis-Diglyceryl Polyacyladipate-2 Tridecyl Trimellitate Inositol Sorbitan Tristearate Beheneth-20 Camellia Sinensis Leaf Extract Cladosiphon Okamuranus Extract Chondrus Crispus Extract Betaphycus Gelatinum Extract Oryza Sativa Bran Extract Panax Ginseng Root Extract Origanum Majorana Leaf Extract Thymus Serpyllum Extract Malva Sylvestris Flower Extract Sodium Hyaluronate Gold Sericin Phytosteryl Macadamiate Tocopherol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Sorbitan Isostearate Polysorbate 60 Butylene Glycol Dimethicone/Vinyl Dimethicone Crosspolymer Sodium Benzoate Gluconolactone Ethylhexylglycerin Parfum Alcohol Phenoxyethanol Citral Limonene Linalool Mica Tin Oxide CI 77891 CI 60725 Water, Saccharomyces/Rice Ferment Filtrate, Glycerin, Propanediol, Dimethicone, Squalane, Diisostearyl Malate, Behenyl Alcohol, Myristyl Myristate, Dipentaerythrityl Hexahydroxystearate, Bis-Diglyceryl Polyacyladipate-2, Tridecyl Trimellitate, Inositol, Sorbitan Tristearate, Beheneth-20, Camellia Sinensis Leaf Extract, Cladosiphon Okamuranus Extract, Chondrus Crispus Extract, Betaphycus Gelatinum Extract, Oryza Sativa Bran Extract, Panax Ginseng Root Extract, Origanum Majorana Leaf Extract, Thymus Serpyllum Extract, Malva Sylvestris Flower Extract, Sodium Hyaluronate, Gold, Sericin, Phytosteryl Macadamiate, Tocopherol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sorbitan Isostearate, Polysorbate 60, Butylene Glycol, Dimethicone/Vinyl Dimethicone Crosspolymer, Sodium Benzoate, Gluconolactone, Ethylhexylglycerin, Parfum, Alcohol, Phenoxyethanol, Citral, Limonene, Linalool, Mica, Tin Oxide, CI 77891, CI 60725 Colloidal Oatmeal 0.5% Stearic Acid C12-15 Alkyl Benzoate Caprylic/Capric Triglyceride Glyceryl Stearate Se Glyceryl Stearate Cetearyl Alcohol Butyrospermum Parkii Butter Caprylyl Glycol Xanthan Gum Allantoin Sodium Hydroxide Tetrasodium EDTA Chrysanthemum Parthenium Extract Glycyrrhiza Glabra Root Extract Ceramide NP Eucalyptus Globulus Leaf Oil Colloidal Oatmeal 0.5%, Water, Stearic Acid, Glycerin, C12-15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Glyceryl Stearate Se, Glyceryl Stearate, Cetearyl Alcohol, Dimethicone, Squalane, Butyrospermum Parkii Butter, Phenoxyethanol, Caprylyl Glycol, Xanthan Gum, Allantoin, Sodium Hydroxide, Tetrasodium EDTA, Chrysanthemum Parthenium Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Ceramide NP, Eucalyptus Globulus Leaf Oil These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Camellia Sinensis Leaf Extract (tea extract) is one of the most well-researched plant extracts in skincare with an impressive resume. Black tea, green tea, and oolong tea are all harvested from the Camellia Sinensis plant. Studies show green tea extract and its catechins (like epigallocatechin gallate (EGCG)) help your skin cells product energy more efficiently and reducing the number of free-radicals that can damage your skin from the inside. In lab-grown skin models, this translated to younger, healthier, and stronger skin. There's also good sun protection data; researchers saw less DNA damage and redness on human skin when green tea was applied before UVB exposure. And the more they applied, the better the protection. Needless to say, this ingredient shouldn't replace your sunscreen. But it is a great supportive ingredient that you can already find in many sunscreens and antioxidant serums. A 2009 study found a 2% green tea lotion was effective for mild-to-moderate acne thanks to its anti-inflammatory and mild antimicrobial activity. The quality of the extract matters a lot here: Good extracts contain 50-90% catechins while lower quality ones are mostly there for marketing. We recommend reaching out to the brand if you have questions about the quality or source of their ingredients. Human Repeated Insult Patch Testing showed no irritation or sensitization at use concentrations (0.86% in leave-on products and up to 30% as leaf water). Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. 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 e