Peptide Skincare & BeautySkin science and ingredient guides

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First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide Versus Kiehl's Ultra Facial Cream with Squalane

First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide Versus Kiehl's Ultra Facial Cream with Squalane Detailed comparison of First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide versus Kiehl's Ultra Facial Cream with Squalane. This

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First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide Versus Kiehl's Ultra Facial Cream with Squalane Detailed comparison of First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide versus Kiehl's Ultra Facial Cream with Squalane. This anti-aging moisturizer is formulated around Niacinamide to soften the look of wrinkles and strengthen the skin barrier. This barrier-repair moisturizer is formulated around Squalane and Pseudoalteromonas Ferment Extract to strengthen the skin barrier and hydrate skin. Water Glycerin Niacinamide C12-15 Alkyl Benzoate Caprylic/Capric Triglyceride Palmitic Acid Stearic Acid Glyceryl Stearate Glyceryl Stearate Se Dimethicone Cetearyl Alcohol Panthenol Colloidal Oatmeal Collagen Squalane Ceramide NP Hexapeptide-9 Butyrospermum Parkii Butter Allantoin Saccharomyces Ferment Caprylyl Glycol Lauroyl Lysine Butylene Glycol Tetrasodium Glutamate Diacetate Xanthan Gum Phenoxyethanol Sodium Hydroxide Water, Glycerin, Niacinamide, C12-15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Palmitic Acid, Stearic Acid, Glyceryl Stearate, Glyceryl Stearate Se, Dimethicone, Cetearyl Alcohol, Panthenol, Colloidal Oatmeal, Collagen, Squalane, Ceramide NP, Hexapeptide-9, Butyrospermum Parkii Butter, Allantoin, Saccharomyces Ferment, Caprylyl Glycol, Lauroyl Lysine, Butylene Glycol, Tetrasodium Glutamate Diacetate, Xanthan Gum, Phenoxyethanol, Sodium Hydroxide Bis-PEG-18 Methyl Ether Dimethyl Silane Sucrose Stearate Stearyl Alcohol PEG-8 Stearate Myristyl Myristate Prunus Armeniaca Kernel Oil Persea Gratissima Oil Cetyl Alcohol Oryza Sativa Bran Oil Olea Europaea Fruit Oil Chlorphenesin Carbomer Acrylates/C10-30 Alkyl Acrylate Crosspolymer Trisodium Ethylenediamine Disuccinate Prunus Amygdalus Dulcis Oil Ethylhexylglycerin Tocopherol Glycine Soja Oil Pseudoalteromonas Ferment Extract Myristic Acid Hydroxypalmitoyl Sphinganine Salicylic Acid Helianthus Annuus Seed Oil Rosmarinus Officinalis Leaf Extract Citric Acid Water, Glycerin, Dimethicone, Squalane, Bis-PEG-18 Methyl Ether Dimethyl Silane, Sucrose Stearate, Stearyl Alcohol, PEG-8 Stearate, Myristyl Myristate, Prunus Armeniaca Kernel Oil, Phenoxyethanol, Persea Gratissima Oil, Glyceryl Stearate, Cetyl Alcohol, Oryza Sativa Bran Oil, Olea Europaea Fruit Oil, Chlorphenesin, Stearic Acid, Palmitic Acid, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Trisodium Ethylenediamine Disuccinate, Prunus Amygdalus Dulcis Oil, Xanthan Gum, Ethylhexylglycerin, Sodium Hydroxide, Tocopherol, Glycine Soja Oil, Pseudoalteromonas Ferment Extract, Myristic Acid, Hydroxypalmitoyl Sphinganine, Salicylic Acid, Helianthus Annuus Seed Oil, Rosmarinus Officinalis Leaf Extract, Citric Acid These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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 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. Glyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive. Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture. This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic. A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier. Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range. Fun fact: The human body also creates Glyceryl Stearate naturally. Palmitic Acid is a fatty acid naturally found in our skin and in many plant and animal sources. In cosmetics, it is usually derived from palm oil. It serves many purposes in skincare, acting as a cleanser, emollient, and emulsifier. Interestingly, topically applied Palmitic Acid ca