Bobbi Brown Perfectly Defined Gel Eyeliner
A eyeliner with 28 ingredients, including exfoliants.
Overview
What it is
Eyeliner with 28 ingredients that contains exfoliants
Cool Features
It is 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, oils, parabens, silicones or sulfates
Fun facts
Bobbi Brown is from United States. 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
Isododecane
EmollientPolyethylene
AbrasiveSynthetic Wax
AbrasiveEthylene/Propylene Copolymer
AbrasiveBis-Diglyceryl Polyacyladipate-2
EmollientHydrogenated Polydicyclopentadiene
Polybutene
Octyldodecanol
EmollientCalcium Sodium Borosilicate
Silica
AbrasiveTin Oxide
AbrasivePentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
AntioxidantMica
Cosmetic ColorantCI 77491
Cosmetic ColorantCI 77492
Cosmetic ColorantCI 77499
Cosmetic ColorantCI 77891
Cosmetic ColorantCI 77510
Cosmetic ColorantCI 77266
CI 19140
Cosmetic ColorantCI 77742
Cosmetic ColorantCI 77289
Cosmetic ColorantCI 77163
Cosmetic ColorantCI 77000
Cosmetic ColorantCI 77288
Cosmetic ColorantCI 77400
Cosmetic ColorantCI 42090
Cosmetic ColorantCI 77007
Cosmetic Colorant
Isododecane, Polyethylene, Synthetic Wax, Ethylene/Propylene Copolymer, Bis-Diglyceryl Polyacyladipate-2, Hydrogenated Polydicyclopentadiene, Polybutene, Octyldodecanol, Calcium Sodium Borosilicate, Silica, Tin Oxide, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
May Contain:
Mica, CI 77491, CI 77492, CI 77499, CI 77891, CI 77510, CI 77266, CI 19140, CI 77742, CI 77289, CI 77163, CI 77000, CI 77288, CI 77400, CI 42090, CI 77007
Key Ingredients
Benefits
Concerns
Ingredients Explained
Isododecane is a fragrance, emollient, and solvent.
As an emollient, it helps your skin stay soft and hydrated. Emollients help trap moisture into your skin.
Isododecane's role as a solvent makes it a great texture enhancer. It spreads smoothly on skin and does not leave a sticky feeling behind. Isododecane also helps prevent color transfer in makeup products.
Isododecane is not absorbed into skin.
Learn more about IsododecanePolyethylene 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 Wax is created from fossil fuels such as natural gas. It is used to enhance texture, adjust pH, and as an occlusive.
It may also be used as an abrasive ingredient to exfoliate the skin.
Synthetic Wax may not be fungal acne safe.
Learn more about Synthetic WaxEthylene/Propylene Copolymer is an exfoliant.
Bis-Diglyceryl Polyacyladipate-2 is lipid-based synthetic skin-conditioning agent. As an emollient, it helps soften and hydrate the skin.
Emollients create a barrier on the skin to trap moisture in.
We don't have a description for Hydrogenated Polydicyclopentadiene yet.
Polybutene 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 PolybuteneOctyldodecanol is a fatty alcohol. It is primarily used to enhance the texture of products.
As an emulsifier, Octyldodecanol helps prevent the oils and waters from separating. It also prevents ingredients from creating foam when shaken.
Octyldodecanol is created by reducing fatty acid to an alcohol.
Due to its high molecular weight, it does not get absorbed into the skin.
Learn more about OctyldodecanolCalcium Sodium Borosilicate is a bulking agent. It is considered a borosilicate glass; it is composed of powder or flakes of calcium and sodium borosilicates.
This ingredient is used to add volume, shine, and color to products. You'll most likely find this ingredient in makeup products.
According to in-vivo and ex-vivo studies done by a manufacturer, this ingredient works well with UV filters:
Learn more about Calcium Sodium BorosilicateSilica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Silica is often used for absorption and can help reduce shine when products are applied. Silica occurs in naturally in materials like clay and sandstone, and it can also be produced synthetically.
Silica is present naturally within the skin during collagen production and when reducing inflammation.
Learn more about SilicaTin Oxide is an inorganic oxide used to add opacity and volume to a product. In nature, it is already found in mineral form. The main ore of tin is an opaque and shiny mineral called casseterite.
Tin Oxide helps remove translucency in a product, or make it more opaque. Besides adding opacity, tin oxide is used for bulking to add volume.
Pentaerythrityl 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 HydroxyhydrocinnamateMica refers to a group of silicate minerals. Mica crystals are easily split to give products a shimmer. These crystals are able to reflect light to temporarily give your skin a glowy look.
Mica is found to be safe. 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.
Mica can be naturally found throughout the world. However, some sources of mica may be controversial. In 2016, mica mined in the Jharkhand state in India was found to be using child labor. However, companies are able to source ethical mica affiliated with international organizations that monitor the mica supply chain.
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.
Learn more about CI 77491Ci 77492 is also hydrated iron III oxide. It's sole purpose is to give a yellow hue to products.
Iron III oxides are classified as inorganic chemicals for coloring.
Synthetically created Ci 77492 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.
Learn more about CI 77492Ci 77499 is also hydrated iron III oxide. It is created from mixing red and black iron oxides. This helps give shades of darkness to a product.
Iron III oxides are classified as inorganic chemicals for coloring.
Ci 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 77891This ingredient is used to impart a blue color. It is not water-soluble.
It goes by two different names:
1. Ferric Ferrocyanide: a synthetic dark blue pigment
2. Ferric Ammonium Ferrocyanide: a synthetic blue pigment, also called Prussian blue
In the EU, both of these colors must be labeled as 'CI 77510'.
Learn more about CI 77510We don't have a description for CI 77266 yet.
CI 19140 is also known as Tartrazine. Tartrazine is a synthetic dye used in cosmetics, foods, and medicine to add a yellow color.
Tartrazine is created from petroleum and is water-soluble.
Some people may experience allergies from this dye, especially asthmatics and those with an aspirin intolerance.
Learn more about CI 19140This ingredient is used to add a violet color to cosmetics.
It is created by reacting phosphoric acid, ammonium dihydrogen orthophosphate, and manganese dioxide.
We don't have a description for CI 77289 yet.
This synthetic powder is used to add a pearly/white color in cosmetics.
We don't have a description for CI 77000 yet.
Ci 77288 is used to add green pigment to products.
We don't have a description for CI 77400 yet.
Ci 42090 is a synthetic dye created from petroleum. It is used to give a bright blue color to cosmetics, medicine, and food.
This pigment is called Ultramarine blue lazurite. It gives a saturated blue color, but can be used to create other colors as well.
According to the manufacturer, it is usually made from kaolin, sodium sulfate, sodium carbonate, sulfur, and charcoal.
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Where it's from
Bobbi Brown is a American 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 Updated August 20, 2025 • Added by kath.ryn