Peptide Skincare & BeautySkin science and ingredient guides

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Q + A Caffeine Eye Serum Versus The INKEY List Caffeine Eye Cream

Q + A Caffeine Eye Serum Versus The INKEY List Caffeine Eye Cream Detailed comparison of Q + A Caffeine Eye Serum versus The INKEY List Caffeine Eye Cream. This anti-aging eye moisturizer is formulated around Caffeine and Camellia Sinensis Leaf Extract to soft

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Q + A Caffeine Eye Serum Versus The INKEY List Caffeine Eye Cream Detailed comparison of Q + A Caffeine Eye Serum versus The INKEY List Caffeine Eye Cream. This anti-aging eye moisturizer is formulated around Caffeine and Camellia Sinensis Leaf Extract to soften the look of wrinkles and calm redness. This anti-aging eye moisturizer is formulated around Caffeine and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles. Water Propylene Glycol Betaine Pentylene Glycol Caffeine Cucumis Sativus Fruit Water Collagen Biosaccharide Gum-1 Camellia Sinensis Leaf Extract Punica Granatum Extract Lonicera Caprifolium Flower Extract Lonicera Japonica Flower Extract Lactobacillus Ferment Filtrate Leuconostoc/Radish Root Ferment Filtrate Sodium Phytate Glycerin Lactobacillus Ferment Xanthan Gum Alcohol Sodium Levulinate Glyceryl Caprylate Sodium Anisate Lactic Acid Water, Propylene Glycol, Betaine, Pentylene Glycol, Caffeine, Cucumis Sativus Fruit Water, Collagen, Biosaccharide Gum-1, Camellia Sinensis Leaf Extract, Punica Granatum Extract, Lonicera Caprifolium Flower Extract, Lonicera Japonica Flower Extract, Lactobacillus Ferment Filtrate, Leuconostoc/Radish Root Ferment Filtrate, Sodium Phytate, Glycerin, Lactobacillus Ferment, Xanthan Gum, Alcohol, Sodium Levulinate, Glyceryl Caprylate, Sodium Anisate, Lactic Acid Dicaprylyl Carbonate Propanediol Polyglyceryl-6 Distearate Cetyl Alcohol Glyceryl Behenate Phenoxyethanol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Jojoba Esters Albizia Julibrissin Bark Extract Squalane Polyglyceryl-3 Beeswax Phospholipids Ethylhexylglycerin Glycine Soja Oil Polysorbate 60 Glycolipids Sorbitan Isostearate Butylene Glycol Citric Acid Glycine Soja Sterols Hyaluronic Acid Sodium Benzoate Tocopherol Carbomer Darutoside Sodium Lactate Polysorbate 20 Palmitoyl Tetrapeptide-7 Palmitoyl Tripeptide-1 Water, Glycerin, Dicaprylyl Carbonate, Propanediol, Polyglyceryl-6 Distearate, Cetyl Alcohol, Glyceryl Behenate, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Jojoba Esters, Albizia Julibrissin Bark Extract, Squalane, Caffeine, Polyglyceryl-3 Beeswax, Phospholipids, Ethylhexylglycerin, Xanthan Gum, Glycine Soja Oil, Polysorbate 60, Sodium Phytate, Glycolipids, Sorbitan Isostearate, Butylene Glycol, Citric Acid, Glycine Soja Sterols, Leuconostoc/Radish Root Ferment Filtrate, Hyaluronic Acid, Sodium Benzoate, Tocopherol, Carbomer, Darutoside, Sodium Lactate, Polysorbate 20, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Caffeine is a naturally occurring plant compound found in coffee beans, tea leaves, cocoa pods, and guarana. As an antioxidant, caffeine protects your skin from free radical damage caused by UV exposure and envionrmnetal stressors. Early research also shows that caffeine can help calm redness, soothe irritated skin, and support hair growth by stimulating microcirculation in the scalp. You might have seen eye creams marketing caffeine as a depuffing ingredient. This is because it is a vasoconstrictor meaning it can temporarily constrict blood vessels, though clinical evidence for this specific use is still limited. Most skincare products contain this ingredient at concentrations between 1-6%. It is able to penetrate skin easily regardless of skin type or thickness. Just so you know, a very small number of case reports describe caffeine-induced allergy. This ingredient is generally well-tolerated, non-irritating, and non-sensitizing for the majority of people. 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. Leuconostoc/Radish Root Ferment Filtrate is a natural preservative. It comes from fermenting radish roots with a bacteria called leuconostoc. The trade name for this ingredient is Leucidal. Leuconostoc comes from lactic acid. This ingredient has antimicrobial properties and helps prevent the growth of bacteria in a product. Leuconostoc is used to make the traditional Korean side-dish, kimchi. It is also used to make sourdough bread (both incredibly yummy foods). Sodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds. Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent -