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Rare Beauty Positive Light Under Eye Brightener - Light Versus Laura Mercier Flawless Fusion Ultra Longwear Concealer - 1.5W
Updated on October 26, 2023
Overview
What they are
These products are both reef safe concealers. They have a total of 10 ingredients in common
Cool Features
They both contain exfoliants
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin and scar healing
Free From
They both do not contain any harsh alcohols, common allergens or parabens
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
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
Laura Mercier Flawless Fusion Ultra Longwear Concealer 37 ingredients
At a glance
Click on any of the items below to learn more
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
Laura Mercier Flawless Fusion Ultra Longwear Concealer 37 ingredients
Notable Ingredients
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Benefits
This product contains 3 ingredients that may have this attribute:
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Concerns
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This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
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:
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:
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
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Phenyl Trimethicone is a silicon-based polymer. It is derived from silica.
This ingredient is a high molecular weight silicone. It has emulsifying and skin conditioning properties.
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.
Lauryl Peg-9 Polydimethylsiloxyethyl Dimethicone is a type of silicone.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
Glyceryl Behenate is a fatty acid created from glycerin and behenic acid. It is an emollient and emulsifier.
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.
Disteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.
Hydroxyacetophenone is antioxidant and helps with skin conditioning.
Helps hydrate Dry Skin 2 Concerns
Helianthus Annuus Seed Oil is the oil derived from the seeds of a Sunflower. Sunflower seed oil is non-fragrant. It is an emollient, meaning it helps to soften the skin.
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.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Antioxidant Helps brighten skin
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.
Dimethicone/Vinyl Dimethicone Crosspolymer is a silicone used to improve the texture of products and absorb oil. It does not get absorbed into the skin.
Antioxidant 4 Benefits May cause irritation
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.
Talc is a clay mineral. It helps absorb moisture and improve the texture of products. Like other types of clay, Talc can have a slight exfoliating effect on skin. Talc can be added to increase the volume of products.
Nelumbium Speciosum Flower Extract comes from the Lotus Flower, Nelumbiumspeciosum.
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.
Ci 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite.
Water, Dipropylheptyl Carbonate, Hydrogenated Didecene, Glycerin, Phenyl Trimethicone, Cetyl Peg/Ppg-10/1 Dimethicone, Pvp, Lauryl Peg-9 Polydimethylsiloxyethyl Dimethicone, Butylene Glycol, Sodium Chloride, Glyceryl Behenate, Silica, Disteardimonium Hectorite, Hydroxyacetophenone, Helianthus Annuus Seed Oil, Methicone, 1,2-Hexanediol, Caprylyl Glycol, Tocopheryl Acetate, Dimethicone/Vinyl Dimethicone Crosspolymer, Trisodium Ethylenediamine Disuccinate, Paeonia Lactiflora Root Extract, Tocopherol, Talc, Gardenia Florida Fruit Extract, Nelumbo Nucifera Flower Extract, Nymphaea Odorata Root Extract, Vitex Agnus-Castus Extract, CI 77499, CI 77163, CI 77891
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.
Not safe for Fungal Acne
Dodecane is a fragrance and isn't fungal acne safe.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
This ingredient is a high molecular weight silicone. It has emulsifying and skin conditioning properties.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Phenyl Trimethicone is a silicon-based polymer. It is derived from silica.
This silicone is an emollient. Emollients create a thin film on the skin to prevent moisture from escaping.
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.
We don't have a description for Acrylates/C12-22 Alkyl Methacrylate Copolymer.
Tribehenin comes from glycerin and behenic acid.
Boron Nitride is compound consisting of boron and nitrogen. It is used to absorb oil and modify adherence/ slip in products.
Polyglyceryl-3 Diisostearate is an emulsifer and emollient. It comes from Isostearic Acid and Polyglycerin-3.
Lecithin is a term for a group of substances found in plants, animals, and humans. They are made up of mixture of fatty acids. These fatty acids usually are a mixture of phosphoric acid's choline ester connected to stearic, oleic, and palmitic acids. Most lecithins are created from plant ingredients scuh as sunflower.
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.
Dimethicone/Vinyl Dimethicone Crosspolymer is a silicone used to improve the texture of products and absorb oil. It does not get absorbed into the skin.
Antioxidant 6 Benefits
Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.
Magnesium Sulfate is a salt. It can be naturally found in sea water or mineral deposits.
Laureth-7 is created by the ethoxylation of lauryl alcohol using ethylene oxide. Lauryl alcohol is a fatty alcohol with hydrating properties.
This ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.
Triethoxycaprylylsilane is a silicone used to bind and stabilize ingredients.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.
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.
Ci 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite.
Ci 77491 is also hydrated iron III oxide. It's sole purpose is to give a red/pink hue to products.
Ci 77492 is also hydrated iron III oxide. It's sole purpose is to give a yellow hue to 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.
Water, Cyclopentasiloxane, Dodecane, Glycerin, Cetyl Peg/Ppg-10/1 Dimethicone, Butylene Glycol, Heptyl Undecylenate, Phenyl Trimethicone, Trimethylsiloxysilicate, Neopentyl Glycol Diheptanoate, Bis-Peg/Ppg-14/14 Dimethicone, Silica, Quaternium-90 Bentonite, Acrylates/C12-22 Alkyl Methacrylate Copolymer, Tribehenin, Boron Nitride, Polyglyceryl-3 Diisostearate, Lecithin, Pentylene Glycol, Disodium Stearoyl Glutamate, Dimethicone/Vinyl Dimethicone Crosspolymer, Ascorbyl Glucoside, Magnesium Sulfate, Laureth-7, Propylene Carbonate, Aluminum Dimyristate, Triethoxycaprylylsilane, Serica, Trisodium EDTA, Phenoxyethanol, Caprylyl Glycol, Chlorphenesin, Mica, CI 77891, CI 77491, CI 77492, CI 77499
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinPhenyl Trimethicone is a silicon-based polymer. It is derived from silica.
Phenyl Trimethicone is used as an emollient and prevents products from foaming.
As an emollient, it helps trap moisture in the skin. It is considered an occlusive.
Learn more about Phenyl TrimethiconeThis ingredient is a high molecular weight silicone. It has emulsifying and skin conditioning properties.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
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.
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 SilicaCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolDimethicone/Vinyl Dimethicone Crosspolymer is a silicone used to improve the texture of products and absorb oil. It does not get absorbed into the skin.
Like other silicones, Dimethicone/Vinyl Dimethicone Crosspolymer helps condition the skin by creating a barrier. In this sense, it can act as an emollient and trap moisture in.
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.
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 77891Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
Laura Mercier Flawless Fusion Ultra Longwear Concealer 37 ingredients
Reviews
Here's what our community thinks
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
screamadelica
great for subtlety
you shouldn’t expect this to camouflage dark circles, but i like it nonetheless. if you got only a few hours of sleep and you’re...
great for subtlety
you shouldn’t expect this to camouflage dark circles, but i like it nonetheless. if you got only a few hours of sleep and you’re running late to work, use this.
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