Updated on March 20, 2024
Overview
What they are
These products are both vegan and reef safe eyeliners. They have a total of 10 ingredients in common
Cool Features
They both contain exfoliants
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, parabens or sulfates
What's Inside
They both contain silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
ISADORA Perfect Contour Kajal Waterproof 14 ingredients
Rare Beauty Perfect Strokes Longwear Gel Eyeliner 19 ingredients
At a glance
Click on any of the items below to learn more
ISADORA Perfect Contour Kajal Waterproof 14 ingredients
Rare Beauty Perfect Strokes Longwear Gel Eyeliner 19 ingredients
Notable Ingredients
This product contains 3 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Ingredients Side-by-side
Hydrogenated Polyisobutene is a synthetic polymer. Polymers are compounds with high molecular weight. Hydrogenated Polyisobutene is an emollient and texture enhancer.
2 Concerns
Synthetic Wax is created from fossil fuels such as natural gas. It is used to enhance texture, adjust pH, and as an occlusive.
Polymethylsilsesquioxane is a silicone used as a film forming agent.
Polybutene is used to help control the viscosity of a product. This just means it helps adjusts the texture.
2 Concerns
Silica 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.
Not safe for Fungal Acne
Hydrogenated Castor Oil is created by adding hydrogen to castor oil. This helps stabilize the castor oil and raises the melting point. At room temperature, hydrogenated castor oil is solid.
Synthetic beeswax is created to be identical in structure to beeswax. It possesses the same occlusive and emulsion properties.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
Ci 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.
Hydrogenated Polyisobutene, Isododecane, Synthetic Wax, Polymethylsilsesquioxane, Polybutene, Silica, Hydrogenated Polydicyclopentadiene, Oryza Sativa Cera, Hydrogenated Castor Oil, Synthetic Beeswax, Ethylene/Propylene Copolymer, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, CI 77499, CI 77510
This silicone is an emollient. Emollients create a thin film on the skin to prevent moisture from escaping.
2 Concerns
Synthetic Wax is created from fossil fuels such as natural gas. It is used to enhance texture, adjust pH, and as an occlusive.
Hydrogenated Polydecene is an emollient. It creates a non-occlusive film on the skin that offers extra protection for your skin barrier.
Hydrogenated Polyisobutene is a synthetic polymer. Polymers are compounds with high molecular weight. Hydrogenated Polyisobutene is an emollient and texture enhancer.
Polybutene is used to help control the viscosity of a product. This just means it helps adjusts the texture.
Polyglyceryl-10 Pentaisostearate isn't fungal acne safe.
Polymethylsilsesquioxane is a silicone used as a film forming agent.
Synthetic beeswax is created to be identical in structure to beeswax. It possesses the same occlusive and emulsion properties.
2 Concerns
Silica 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.
Mica 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.
Silica Silylate is a siloxane polymer, meaning it is made up of silicon and oxygen atoms. It is not soluble in water.
Disteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
Copernicia Cerifera Wax comes from a palm tree native to Brazil. This wax is added to help give a thicker texture. It also helps create a film when applied.
This ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.
Ci 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.
Trimethylsiloxysilicate, Isododecane, Synthetic Wax, Hydrogenated Polydecene, Hydrogenated Polyisobutene, Polybutene, Polyglyceryl-10 Pentaisostearate, Polymethylsilsesquioxane, Synthetic Beeswax, Silica, Mica, Silica Silylate, Disteardimonium Hectorite, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Copernicia Cerifera Wax, Propylene Carbonate, CI 77499, CI 77510, CI 77267
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Hydrogenated Polyisobutene is a synthetic polymer. Polymers are compounds with high molecular weight. Hydrogenated Polyisobutene is an emollient and texture enhancer.
In one study, Hydrogenated Polyisobutene showed better skin hydration levels than Caprylic/Capric Triglyceride. As an emollient, it helps keep your skin soft and hydrated by trapping moisture in.
Hydrogenated Polyisobutene is often used as a mineral oil replacement.
Learn more about Hydrogenated PolyisobuteneIsododecane 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 IsododecaneSynthetic 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 WaxPolymethylsilsesquioxane is a silicone used as a film forming agent.
When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied.
Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less.
If you have concerns about using this ingredient, we recommend speaking with a professional.
Learn more about PolymethylsilsesquioxanePolybutene 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 PolybuteneSilica 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 SilicaSynthetic beeswax is created to be identical in structure to beeswax. It possesses the same occlusive and emulsion properties.
A blend of fatty acid esters, fatty acids, and alcohols are used to create synthetic beeswax. Whether or not this ingredient is vegan depends on the source. Sometimes, lanolin is used for its creation.
This ingredient may not be Malassezia folliculitis, or fungal-acne safe.
Learn more about Synthetic BeeswaxPentaerythrityl 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 HydroxyhydrocinnamateCi 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.
We don't have a description for CI 77510.
Ingredient Ratings
Here's what our community thinks of the ingredients in these two products.
