Overview
What it is
Highlighter with 28 ingredients that contains exfoliants
Cool Features
It is cruelty-free and reef safe
Suited For
It has ingredients that are good for dry skin
Free From
It doesn't contain any harsh alcohols, common allergens, fragrances, parabens, silicones or sulfates
Fun facts
Koy is from South Korea. This product is used in 1 routines created by our community.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
What's inside
Ingredients List
Diisostearyl Malate
EmollientOctyldodecanol
EmollientPhenylpropyldimethylsiloxysilicate
EmollientTriethylhexanoin
MaskingPolybutene
Abies Alba Seed Oil
AntimicrobialSynthetic Wax
AbrasiveHydrogenated Polydecene
EmollientHydrogenated Vegetable Oil
EmollientBis-Diglyceryl Polyacyladipate-2
EmollientParaffin
Skin ConditioningPentaerythrityl Tetraisostearate
EmollientSorbitan Isostearate
EmulsifyingTrilaurin
Skin ConditioningPolyethylene
AbrasiveSynthetic Fluorphlogopite
Polyglyceryl-2 Triisostearate
EmulsifyingSilica Dimethyl Silylate
EmollientCI 77891
Cosmetic ColorantSucrose Tetrastearate Triacetate
EmollientEthylene/Propylene Copolymer
AbrasiveMicrocrystalline Wax
Emulsion StabilisingCaprylyl Glycol
EmollientGlyceryl Caprylate
EmollientPentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
AntioxidantHydroxystearic Acid
CleansingMica
Cosmetic ColorantCI 77491
Cosmetic ColorantDiisostearyl Malate, Octyldodecanol, Phenylpropyldimethylsiloxysilicate, Triethylhexanoin, Polybutene, Abies Alba Seed Oil, Synthetic Wax, Hydrogenated Polydecene, Hydrogenated Vegetable Oil, Bis-Diglyceryl Polyacyladipate-2, Paraffin, Pentaerythrityl Tetraisostearate, Sorbitan Isostearate, Trilaurin, Polyethylene, Synthetic Fluorphlogopite, Polyglyceryl-2 Triisostearate, Silica Dimethyl Silylate, CI 77891, Sucrose Tetrastearate Triacetate, Ethylene/Propylene Copolymer, Microcrystalline Wax, Caprylyl Glycol, Glyceryl Caprylate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Hydroxystearic Acid, Mica, CI 77491
Key Ingredients
Benefits
Concerns
Ingredients Explained
Diisostearyl Malate is an emollient and most often used in lip products. It comes from isostearyl alcohol, a fatty acid, and malic acid, an AHA.
As an emollient, Diisostearyl Malate helps create a thin film on your skin to trap moisture in. This helps keep your skin soft and smooth.
Octyldodecanol is a fatty alcohol sourced from plant oils like coconut or palm (or made synthetically).
It is:
You'll likely see this in many BHA products because this is the go-to solvent for salicylic acid.
This ingredient is typically used at levels between 2-20%.
Regarding fungal acne:
In 2019, this ingredient was tested against multiple Malassezia species (the yeast that causes fungal acne) and showed no growth.
We don't have a description for Phenylpropyldimethylsiloxysilicate yet.
Triethylhexanoin is created from glycerin and 2-ethylhexanoic acid. It is a solvent and emollient.
As a solvent, Triethylhexanoin helps dissolve ingredients to stable bases or help evenly distribute ingredients throughout the product.
It is also an emollient and helps condition the skin.
Learn more about TriethylhexanoinPolybutene is used to help control the viscosity of a product. This just means it helps adjusts the texture.
It is a polymer and does not get absorbed into the skin due to its large size.
Studies found this ingredient did not irritate skin in concentrations below 15%.
Learn more about PolybuteneAbies Alba Seed Oil is an antioxidant and is an oil.
Synthetic Wax is a manufactured hydrocarbon wax. In formulas, it works as an occlusive emollient that helps reduce water loss and improves the spreadability of products.
Research comparing synthetic wax to traditional mineral-derived products found that formulas containing it perform as well for skin hydration.
It is considered non-comedogenic and vegan-friendly.
This ingredient has a well-established safety record by the CIR Expert Panel for Cosmetic Ingredient Safety.
Synthetic Waxes are straight/branched-chain hydrocarbons with no ester bond or fatty acids. That means there is nothing for the Malassezia yeast to feed on.
Learn more about Synthetic WaxHydrogenated Polydecene is a synthetic emollient. It forms a non-occlusive film on the skin's surface to provide a silky feel without being greasy.
In vivo studies in volunteers with atopic and dry skin showed no irritation or intolerance. The volunteers also saw a positive effect in dryness, scaling, and roughness after 28 days of use.
Concentrations up to 100% in guinea pig tests found it to be non-sensitizing and completely safe for use in cosmetics.
Learn more about Hydrogenated PolydeceneHydrogenated Vegetable Oil is created by adding hydrogen to vegetable oil in order to give it more stability. This process also raises the melting point of vegetable oil. In cosmetics, it is an emollient.
Emollients help soothe and soften the skin. They do this by creating a protective film on your skin. This barrier helps trap moisture and keeps your skin hydrated. Emollients may be effective at treating dry or itchy skin.
The term "Hydrogenated Vegetable Oil" is an umbrella term and can refer to a variety of vegetable oils and blends of: sunflower oil, soybean oil, olive oil, coconut oil, palm oil, and more.
Due to the differences in vegetables, the benefits may vary.
Learn more about Hydrogenated Vegetable OilBis-Diglyceryl Polyacyladipate-2 is a synthetic emollient that works as a lanolin substitute.
This ingredient is a great vegan option for those avoiding animal-derived ingredients.
It mostly stays on the surface of skin where it helps hydrate due to its large molecular size and low water solubility.
Due to it being derived from fatty acids, this ingredient may not be Malassezia or fungal acne safe.
Learn more about Bis-Diglyceryl Polyacyladipate-2Paraffin is a solid wax that pulls its weight as an emollient, occlusive, and consistency-booster.
It softens skin and lays down a protective film to slow water loss and gives products a stable body and structure.
The cosmetic grade stuff is highly refined with a solid safety record. The CIR Expert Panel has repeatedly reaffirmed this ingredient to be safe in current practices of use and concentration.
The worry about carcinogenic compounds only applies to industrial grades, not the purified version used in skincare.
Despite its reputation, the highly reformed form is non-comedogenic and doesn't penetrate deeply into skin.
The good news for fungal-acne prone folks: the Malassezia yeast feeds on fatty acids and lipids and paraffin doesn't contain any of these (so there's nothing for the yeast to metabolize). This ingredient is considered fungal acne safe.
Learn more about ParaffinPentaerythrityl Tetraisostearate is a synthetic emollient and "skin-feel" ingredient that spreads well and leaves a non-sticky finish with high gloss.
In makeup, it also doubles as a pigment-wetting agent for better color payoff.
It's a well-vetted ingredient for safety and does not penetrate into skin due to its large molecule size.
Because it's a long-chain fatty acid ester, this ingredient may not be fungal acne or Malassezia safe.
Learn more about Pentaerythrityl TetraisostearateSorbitan Isostearate is an emulsifer. It is created from isostearic acid and sorbitol.
As an emulsifier, it keeps the water and oil ingredients from separating. This keeps formulas stable and smooth.
In a 24 hour occlusive patch test on 56 subjects, 10% sorbitan isostearate was completely non-irritating. Most formulas use less than 10%.
Because it's a fatty acid ester, it may not be fungal acne safe since the Malassezia yeast can utilize it as a nutrient source.
Learn more about Sorbitan IsostearateWe don't have a description for Trilaurin yet.
Polyethylene is a synthetic ingredient that helps the skin retain moisture. It is a polymer.
It is also typically used within product formulations to help bind solid ingredients together and thicken oil-based ingredients. When added to balms and emulsions, it helps increase the melting point temperature.
Synthetic Fluorphlogopite is the synthethic version of mica. It consists of fluorine, aluminum and silicate.
Synthetic Fluorphlogopite is used to add volume to products.
It is considered non-irritating on the skin.
Learn more about Synthetic FluorphlogopitePolyglyceryl-2 Triisostearate is a plant-derived emulsifier and pigment-dispersing agent with a non-sticky skin feel.
It helps products glide on smoothly and prevents oil and water from separating in a formula, making it suitable for sunscreen and makeup formulations.
The EU inventory of cosmetics has no use restrictions on this ingredient and it is considered well-tolerated.
This ingredient may not be fungal acne safe because it is derived from isostearic acid.
Learn more about Polyglyceryl-2 TriisostearateThis silica is mainly used to thicken oils and suspend particles in oils. It is not water soluble.
According to the manufacturer, it:
The manufacturer also claims this ingredient to be useful in makeup.
In lipstick formulations, this ingredient improves color payoff, reduces pigment settling, and reduces oil bleeding. This ingredient also improves the grip of powder products such as dry shampoos.
Learn more about Silica Dimethyl SilylateCi 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite.
It's main function is to add a white color to cosmetics. It can also be mixed with other colors to create different shades.
Ci 77891 is commonly found in sunscreens due to its ability to block UV rays.
Learn more about CI 77891Sucrose Tetrastearate Triacetate isn't fungal acne safe.
Ethylene/Propylene Copolymer is an exfoliant.
Microcrystalline Wax is derived from petroleum through a de-oiling process, then highly refined and purified before use in cosmetics.
In skincare formulations, it is used to improve texture and create a smooth, even consistency. It also helps stabilize products by preventing ingredients from separating.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolGlyceryl Caprylate comes from glycerin and caprylic acid. It is an emollient, co-emulsifier, and preservative booster.
Its short C8 fatty acid chain makes it behave differently from its longer-chain emollient cousins like Glyceryl Stearate. It feels more lightweight, fast-absorbing, and silky instead of rich and waxy.
As a co-emulsifier, its "head" and "tail" sit at the oil-water interface. But overall, the short C8 tail and not being water soluble means it doesn't really have the muscle to emulsify a formula on its own. That's why you'll often see it paired with a primary emulsifier like Cetearyl Glucoside.
Interestingly, Glyceryl Caprylate acts as a preservative booster. This is because its fatty-acid backbone disrupts microbial lipid membranes. It shows excellent activity against bacteria and yeast but is weaker against mold.
Typical concentrations range from 0.5-1% and this ingredient is generally non-irritating.
Because this ingredient has a C8 fatty acid chain, it is outside the range that the Malassezia yeast metabolizes (making it fungal acne safe).
Learn more about Glyceryl CaprylatePentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
It is used to help stabilize other antioxidants or prevent the color from changing in a product.
As an antioxidant, it helps fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. Thus, antioxidants may reduce the signs of aging.
This ingredient is oil-soluble.
Learn more about Pentaerythrityl Tetra-Di-T-Butyl HydroxyhydrocinnamateHydroxystearic Acid is a C18 fatty acid derived from castor oil.
In cosmetics, it pulls triple duty:
Reported use concentrations for this ingredient go up to about 13.2% in makeup but tends to be lower in skincare.
Fungal acne: Since hydroxystearic acid is a C18 fatty acid, it falls into the C11-24 range that the Malassezia yeast can metabolize. This ingredient may not be fungal acne safe.
Learn more about Hydroxystearic AcidMica is a naturally occurring mineral used to add shimmer and color in cosmetics. It can also help improve the texture of a product or give it an opaque, white/silver color.
Serecite is the name for very fine but ragged grains of mica.
This ingredient is often coated with metal oxides like titanium dioxide. Trace amounts of heavy metals may be found in mica, but these metals are not harmful in our personal products.
Mica has been used since prehistoric times throughout the world. Ancient Egyptian, Indian, Greek, Roman, Aztec, and Chinese civilizations have used mica.
Learn more about MicaCi 77491 is also hydrated iron III oxide. It's sole purpose is to give a red/pink hue to products.
Iron III oxides are classified as inorganic chemicals for coloring.
Synthetically created Ci 77491 is considered safer than those naturally found. This is because the synthetically created version may contain less impurities. Iron oxides are generally non-toxic and non-allergenic.
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Where it's from
Koy is a Korean brand
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about usยท Published September 8, 2025 • Added by gcvjhkjvyuhjmn