NYX Cosmetics Can't Stop Won't Stop Contour Concealer Versus Joah Beauty Hydrating Eye Serum Concealer
What's inside
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Skin ConditioningCyclopentasiloxane
Emollient
Methyl Methacrylate Crosspolymer
Cyclohexasiloxane
Emollient
Butylene Glycol
Humectant
PEG-10 Dimethicone
Skin Conditioning
Trimethylsiloxysilicate
Emollient
Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
Skin Conditioning
Silica Dimethyl Silylate
EmollientSodium Chloride
MaskingTriethoxycaprylylsilane
Dimethicone
Emollient
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Aluminum Hydroxide
EmollientDisodium EDTA
Propylene Carbonate
SolventDisteardimonium Hectorite
StabilisingEthylhexylglycerin
Skin ConditioningCetyl PEG/PPG-10/1 Dimethicone
Emulsifying
Tocopherol
Antioxidant
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Phenoxyethanol
Preservative
Iron Oxides
CI 77891
Cosmetic ColorantWater, Cyclopentasiloxane, Methyl Methacrylate Crosspolymer, Cyclohexasiloxane, Butylene Glycol, PEG-10 Dimethicone, Trimethylsiloxysilicate, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Silica Dimethyl Silylate, Sodium Chloride, Triethoxycaprylylsilane, Dimethicone, Dimethicone/Vinyl Dimethicone Crosspolymer, Aluminum Hydroxide, Disodium EDTA, Propylene Carbonate, Disteardimonium Hectorite, Ethylhexylglycerin, Cetyl PEG/PPG-10/1 Dimethicone, Tocopherol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Phenoxyethanol, Iron Oxides, CI 77891
Cyclopentasiloxane
Emollient
Water
Skin ConditioningTrimethylsiloxysilicate
Emollient
Butylene Glycol
Humectant
PEG/PPG-18/18 Dimethicone
Emulsifying
Glycerin
Humectant
Polymethylsilsesquioxane
Disteardimonium Hectorite
Stabilising1,2-Hexanediol
Skin Conditioning
Sorbitan Sesquioleate
Emulsifying
Magnesium Sulfate
Cyclohexasiloxane
Emollient
Tribehenin
Emollient
Tocopheryl Acetate
Antioxidant
Aluminum Hydroxide
EmollientPropylene Carbonate
SolventHydrogen Dimethicone
Butyrospermum Parkii Butter
Skin Conditioning
Caprylyl Glycol
Emollient
Ethylhexylglycerin
Skin ConditioningParfum
Masking
Cellulose Gum
Emulsion StabilisingXanthan Gum
EmulsifyingDimethicone
Emollient
Triethoxycaprylylsilane
Phytosphingosine
Skin Conditioning
Palmitoyl Tripeptide-5
Skin Conditioning
Iron Oxides
Titanium Dioxide
Cosmetic Colorant
Mica
Cosmetic ColorantCyclopentasiloxane, Water, Trimethylsiloxysilicate, Butylene Glycol, PEG/PPG-18/18 Dimethicone, Glycerin, Polymethylsilsesquioxane, Disteardimonium Hectorite, 1,2-Hexanediol, Sorbitan Sesquioleate, Magnesium Sulfate, Cyclohexasiloxane, Tribehenin, Tocopheryl Acetate, Aluminum Hydroxide, Propylene Carbonate, Hydrogen Dimethicone, Butyrospermum Parkii Butter, Caprylyl Glycol, Ethylhexylglycerin, Parfum, Cellulose Gum, Xanthan Gum, Dimethicone, Triethoxycaprylylsilane, Phytosphingosine, Palmitoyl Tripeptide-5, Iron Oxides, Titanium Dioxide, Mica
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aluminum Hydroxide is a form of aluminum. It can be naturally found in nature as the mineral gibbsite. In cosmetics, Aluminum Hydroxide is used as a colorant, pH adjuster, and absorbent.
As a colorant, Aluminum Hydroxide may add opacity, or reduce the transparency. Aluminum hydroxide is contains both basic and acidic properties.
According to manufacturers, this ingredient is an emollient and humectant. This means it helps hydrate the skin.
In medicine, this ingredient is used to help relieve heartburn and help heal ulcers.
There is currently no credible scientific evidence linking aluminum hydroxide in cosmetics to increased cancer risk.
Major health organizations allow the use of aluminum hydroxide in personal care products and have not flagged it as a carcinogenic risk at typical usage levels.
Learn more about Aluminum HydroxideButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolCyclohexasiloxane is a type of silicone more commonly known as D6. It is an emollient and solvent.
Cyclohexasiloxane is used to evenly distribute ingredients throughout the product. When applied to the skin, Cyclohexasiloxane evaporates and leaves behind a silky feel.
As an emollient, it can help the skin feel soft and hydrated. It is also used to reduce frizz in hair products.
Learn more about CyclohexasiloxaneCyclopentasiloxane, or D5, is a silicone used to improve texture of products and trap moisture.
D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.
It is also an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.
Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.
Learn more about CyclopentasiloxaneDimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeDisteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.
It can also help stabilize a product by helping to disperse other ingredients.
Hectorite is a rare, white clay mineral.
Learn more about Disteardimonium HectoriteEthylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Learn more about EthylhexylglycerinThis ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.
Propylene Carbonate is commonly used in makeup and with clay, such as montmorillonite or bentonite.
Studies show this ingredient to be safe for cosmetics. When it is undiluted, it can cause skin irritation. (It is always diluted in skincare and makeup). This ingredient is water-soluble.
Propylene Carbonate is created from propylene glycol and carbonic acid.
Learn more about Propylene CarbonateTriethoxycaprylylsilane is a silicon-based surface modifier that makes sunscreens feel silky and makeup stay put.
Its main job is to coat mineral particles like titanium dioxide, zinc oxide, and color pigments in a thin, oily layer so they spread smoothly, don't clump, and stick to skin better.
This ingredient is typically used at low levels (up to 2.5% in eyeshadow and 1% in lipstick).
Learn more about TriethoxycaprylylsilaneThis silicone is an emollient. Emollients create a thin film on the skin to prevent moisture from escaping.
It is not soluble in water and helps increase water-resistance in products.
According to a manufacturer, it can blend seamlessly with silicone oils, such as Cyclopentasiloxane.
Learn more about TrimethylsiloxysilicateWater. 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. Remember to stay hydrated!
Learn more about WaterThis ingredient is a combination of red, black, and yellow iron oxide pigments. This combination of colors is usually found in foundation, because it results in a "skin" color.
The EU typically uses CI numbers for colorants when applicable, such as CI 77489. In the US, iron oxides are regulated as color additives and "iron oxides" is the most commonly used name in US cosmetic practice.
A 2021 paper looked at skincare formulations containing iron oxides and found that they reduced transmission of blue light when measured optically. In simple terms, the pigment particles helped block or scatter part of the visible light spectrum in lab testing and the authors suggest this could translate into better protection against blue-light-related skin effects.
There is also clinical and experimental research showing that tinted products containing iron oxides can reduce visible light-induced pigmentation:
Please note, whether a product reduces visible or blue light depends on things like:
In the EU's CosIng database, iron oxides are only listed as a colorant. CosIng groups ingredients by their main cosmetic role, such as colorant, preservative, or UV filter.
Though studies say iron oxides can "attenuate blue light", they're describing an optical property and not an officially recognized cosmetic function.
So CosIng isn’t contradicting the research. It’s just classifying iron oxides by what they officially are: pigments that add color.
Learn more about Iron Oxides
