Mac Cosmetics Studio Fix 24-Hour Smooth Wear Concealer - NC30 Versus Rare Beauty Positive Light Under Eye Brightener - Light
Updated on October 26, 2023
Overview
What they are
These products are both concealers. They have a total of 10 ingredients in common
Cool Features
They both contain exfoliants and Vitamin E
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
Mac Cosmetics Studio Fix 24-Hour Smooth Wear Concealer 33 ingredients
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Mac Cosmetics Studio Fix 24-Hour Smooth Wear Concealer 33 ingredients
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Cyclopentasiloxane
Emollient
Water
Skin ConditioningTrimethylsiloxysilicate
Emollient
Butylene Glycol
Humectant
PEG/PPG-18/18 Dimethicone
Emulsifying
Sorbitan Sesquioleate
Emulsifying
Tribehenin
Emollient
Magnesium Sulfate
Phenyl Trimethicone
Skin Conditioning
Dimethicone Crosspolymer
Emulsion StabilisingDimethicone
Emollient
Methicone
Emollient
Silica
Abrasive
Nylon-12
Olea Europaea Leaf Extract
Perfuming
Algae Extract
Emollient
Oryza Sativa Bran Extract
Skin Conditioning
Glycerin
Humectant
Ethylhexylglycerin
Skin ConditioningLaureth-7
EmulsifyingXanthan Gum
EmulsifyingTocopheryl Acetate
Antioxidant
Sodium Hyaluronate
Humectant
Tocopherol
Antioxidant
Caprylyl Glycol
EmollientPentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Phenoxyethanol
Preservative
Chlorphenesin
Antimicrobial
Sorbic Acid
Preservative
CI 77891
Cosmetic ColorantCI 77492
Cosmetic ColorantCI 77491
Cosmetic ColorantCI 77499
Cosmetic ColorantCyclopentasiloxane, Water, Trimethylsiloxysilicate, Butylene Glycol, PEG/PPG-18/18 Dimethicone, Sorbitan Sesquioleate, Tribehenin, Magnesium Sulfate, Phenyl Trimethicone, Dimethicone Crosspolymer, Dimethicone, Methicone, Silica, Nylon-12, Olea Europaea Leaf Extract, Algae Extract, Oryza Sativa Bran Extract, Glycerin, Ethylhexylglycerin, Laureth-7, Xanthan Gum, Tocopheryl Acetate, Sodium Hyaluronate, Tocopherol, Caprylyl Glycol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Phenoxyethanol, Chlorphenesin, Sorbic Acid, CI 77891, CI 77492, CI 77491, CI 77499
Water
Skin ConditioningDipropylheptyl Carbonate
EmollientHydrogenated Didecene
Skin ConditioningGlycerin
Humectant
Phenyl Trimethicone
Skin Conditioning
Cetyl PEG/PPG-10/1 Dimethicone
Emulsifying
Pvp
Emulsion StabilisingLauryl PEG-9 Polydimethylsiloxyethyl Dimethicone
Skin Conditioning
Butylene Glycol
Humectant
Sodium Chloride
Masking
Glyceryl Behenate
Emollient
Silica
Abrasive
Disteardimonium Hectorite
StabilisingHydroxyacetophenone
Antioxidant
Helianthus Annuus Seed Oil
Emollient
Methicone
Emollient
1,2-Hexanediol
Skin ConditioningCaprylyl Glycol
EmollientTocopheryl Acetate
Antioxidant
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin ConditioningTrisodium Ethylenediamine Disuccinate
Paeonia Lactiflora Root Extract
Skin ConditioningTocopherol
Antioxidant
Talc
Abrasive
Gardenia Florida Fruit Extract
Skin ConditioningNelumbo Nucifera Flower Extract
Skin ConditioningNymphaea Odorata Root Extract
RefreshingVitex Agnus-Castus Extract
AstringentIron Oxides
CI 77163
Cosmetic ColorantCI 77891
Cosmetic ColorantWater, 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, Iron Oxides, CI 77163, CI 77891
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 WaterButylene 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.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Phenyl 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 TrimethiconeMethicone is a type of silicone and is a simpler form of dimethicone.
Silicones are used to enhance the texture of products and have emollient properties. Methicone is used to give products a silky texture and improves spreadability.
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 SilicaGlycerin 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 GlycerinTocopheryl 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.
One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.
Tocopheryl Acetate is commonly found in both skincare and dietary supplements.
Learn more about Tocopheryl AcetateTocopherol (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.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolCaprylyl 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 GlycolCi 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
Mac Cosmetics Studio Fix 24-Hour Smooth Wear Concealer 33 ingredients
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
Reviews
Here's what our community thinks
Mac Cosmetics Studio Fix 24-Hour Smooth Wear Concealer 33 ingredients
Rare Beauty Positive Light Under Eye Brightener 31 ingredients
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. you can even wear it WITH undereye concealer!
