Kiehl's Rare Earth Deep Pore Cleansing Masque Versus Saturday Skin Yuzu Vitamin C Sleep Mask

Phenyl Trimethicone is a silicon-based polymer. It is derived from silica.

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

A type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.

Polymethylsilsesquioxane is a silicone used as a film forming agent.

Chlorella Vulgaris Extract comes from the microalga, Chlorella vulgaris. It is hydrating and contains antioxidants. Studies also show Chlorella Vulgaris may help in rebuilding collagen and elastin.

Glucose is a simple sugar and is the most important source of energy in all organisms.

Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

Fructooligosaccharides is an alternative sweetener. It is often derived from the blue agave plant.

Fructose is fruit/plant sugar. It can be found in apples, figs, and honey.

Hippophae Rhamnoides Oil also known as seabuckthorn oil. This oil is usually extracted from the fruit pulp or seeds.

Tromethamine is an aliphatic compound. An aliphatic compound is an organic compound with open-chained carbon atoms. It is synthetically created. Tromethamine is used to balance pH and improve texture.

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken and improve the texture of products.

Citrus Junos Peel Oil comes from the Citrus Junos tree, or the Yuzu plant.

Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

We don't have a description for Eclipta Prostrata Extract.

Eclipta Prostrata Leaf Extract comes from the false daisy plant. False daisy contains antioxidant compounds such as flavonoids.

Citrus Junos Seed Oil comes from the seeds of the Yuzu fruit.

Moringa Oleifera Seed Oil is the oil expressed from the seeds of Moringa oleifera plant. It is more commonly known as Moringa seed oil.

Hydrogenated Lecithin is created from the hydrogenation of lecithin. Hydrogenation is a chemical reaction between molecule hydrogen and another element.

Cholesterol is a class of organic molecules called lipids. It helps hydrate your skin and is essential to having a healthy skin barrier.

We don't have a description for Peg-800.

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.

Ceramide NP is a type of ceramide.

Linoleic Acid is Vitamin F and a fatty acid. It is an emollient and helps thicken texture. Linoleic acid helps with hydrating skin and nourishing the skin's barrier. The top layer of skin, or epidermis, contains high amounts of linoleic acid naturally.

Retinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.

Citrus Junos Fruit Oil is a fragrance and is an oil.

Bioflavonoids are secondary metabolites found in plants. They contain antioxidants.

sh-Oligopeptide-1 is a peptide found naturally in our bodies. Peptides are the building blocks for collagen and elastin in our skin.

Peptides are amino acids naturally found in your skin. These amino acids make up many proteins your skin uses. Collagen is made up of peptides. Collagen is responsible for keeping your skin plump and youthful.

Sh-Oligopeptide-2 is a peptide.

Peptides are amino acids naturally found in your skin. These amino acids make up many proteins your skin uses. Collagen is made up of peptides. Collagen is responsible for keeping your skin plump and youthful.

Peptides are amino acids naturally found in your skin. These amino acids make up many proteins your skin uses. Collagen is made up of peptides. Collagen is responsible for keeping your skin plump and youthful.

Sh-Polypeptide-8 is a peptide.

Peptides are amino acids naturally found in your skin. These amino acids make up many proteins your skin uses. Collagen is made up of peptides. Collagen is responsible for keeping your skin plump and youthful.