COSRX The Retinol 0.5 Oil Versus Youth Lab Retinol Reboot Mask

Hydroxyacetophenone is antioxidant and helps with skin conditioning.

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

Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.

Glyceryl Glucoside is made from glycerol and glucose.

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

Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.

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.

Ammonium Acryloyldimethyltaurate/Vp Copolymer (let's call it AAVC for short) is a synthetically created polymer. It's used as a film-forming agent and used to thicken the consistency of products.

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

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.

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

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.

Retinyl Acetate is a form of retinoid. It can be good for be good for oily skin. It can help to improve skin texture, reduce large pores, reduce the effects of aging, reduce the visibility of dark spots, heal scars, brighten skin, and fight acne.

Beta-Glucan is a polysaccharide. It can be derived from the cell walls of seaweed, oats, yeast, and fungi. It hydrates the skin and helps boost your skin's natural barrier.

Sclerotium Gum is a polysaccharide gum made by the fungus, Sclerotium rolfssii. It is similar to xanthan gum.

Ferulic Acid is a plant based antioxidant. By fighting free-radicals, ferulic acid can help reduce the formation of fine lines and hyperpigmentation.

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

We don't have a description for Acetyl Hydroxyproline yet.

Polyglyceryl-10 Diisostearate isn't fungal acne safe.

Hydrogenated Lecithin is created from the hydrogenation of lecithin (a group of fatty acids). Hydrogenation is a chemical reaction between hydrogen and another element.

Astaxanthin is a carotene pigment and red pigment. It is a promising antioxidant with a ton of skin benefits.

We don't have a description for Fullerenes yet.

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

Dipotassium Glycyrrhizate comes from licorice root.

Glycine Soja Oil comes from the soybean. Glycine Soja is native to eastern Asia.

Calcium Pantothenate is calcium salt from Vitamin B5. It can be naturally found in plants and animals.

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

Pvp is a water-soluble synthetic polymer and common hairstyling ingredient. It is a film-forming ingredient and used to "hold" specific shapes of hair.

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.

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.

Ubiquinone (Coenzyme Q10) is a molecule already found in our bodies. It is a potent antioxidant and skin-soothing ingredient.

Biotin is a B vitamin that is naturally produced by our bodies. It is also called Vitamin H.