Kosas Revealer Skin-Improving Foundation SPF 25 - Very Light Neutral 100 Versus Glossier Stretch Fluid Foundation - Medium Tan 4
Updated on October 13, 2023
Overview
What they are
These products are both cruelty-free foundations. They have a total of 9 ingredients in common
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, oils, parabens, silicones or sulfates
What's Inside
They both contain fragrances
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
Kosas Revealer Skin-Improving Foundation SPF 25 35 ingredients
Glossier Stretch Fluid Foundation 33 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Kosas Revealer Skin-Improving Foundation SPF 25 35 ingredients
Glossier Stretch Fluid Foundation 33 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Zinc Oxide 7.5%
Cosmetic Colorant
Water
Skin ConditioningEthylhexyl Olivate
Skin Conditioning
Octyldodecanol
EmollientUndecane
EmollientPolyglyceryl-2 Dipolyhydroxystearate
Skin Conditioning
Glycerin
Humectant
Mica
Cosmetic Colorant
Calcium Sodium Borosilicate
Caprylic/Capric Triglyceride
MaskingNiacinamide
Smoothing
Polyglyceryl-3 Diisostearate
Emulsifying
Galactoarabinan
Tridecane
Perfuming
Propanediol
SolventCetyl Alcohol
Emollient
Glyceryl Oleate
Emollient
Sodium Hyaluronate
Humectant
Palmitoyl Tripeptide-5
Skin Conditioning
Panthenol
Skin Conditioning
Squalane
Emollient
Caffeine
Skin ConditioningArnica Montana Flower Extract
Masking
Artemisia Capillaris Flower Extract
Skin ConditioningEthyl Ferulate
Antioxidant
Sodium Gluconate
Skin ConditioningPolyhydroxystearic Acid
Emulsifying
Maltodextrin
AbsorbentPentylene Glycol
Skin ConditioningLecithin
EmollientHydrogenated Lecithin
EmulsifyingTocopherol
Antioxidant
Phenethyl Alcohol
MaskingCI 77891
Cosmetic ColorantIron Oxides
Zinc Oxide 7.5%, Water, Ethylhexyl Olivate, Octyldodecanol, Undecane, Polyglyceryl-2 Dipolyhydroxystearate, Glycerin, Mica, Calcium Sodium Borosilicate, Caprylic/Capric Triglyceride, Niacinamide, Polyglyceryl-3 Diisostearate, Galactoarabinan, Tridecane, Propanediol, Cetyl Alcohol, Glyceryl Oleate, Sodium Hyaluronate, Palmitoyl Tripeptide-5, Panthenol, Squalane, Caffeine, Arnica Montana Flower Extract, Artemisia Capillaris Flower Extract, Ethyl Ferulate, Sodium Gluconate, Polyhydroxystearic Acid, Maltodextrin, Pentylene Glycol, Lecithin, Hydrogenated Lecithin, Tocopherol, Phenethyl Alcohol, CI 77891, Iron Oxides
Water
Skin ConditioningC9-12 Alkane
SolventSqualane
Emollient
Coco-Caprylate/Caprate
Emollient
Propanediol
SolventGlycerin
Humectant
Pentylene Glycol
Skin ConditioningSorbitan Isostearate
Emulsifying
Polyglyceryl-3 Polyricinoleate
Emulsifying
Tribehenin
Emollient
Ethyl Oleate
Emollient
Butylene Glycol
Humectant
Disteardimonium Hectorite
StabilisingEctoin
Skin Conditioning
Silica
Abrasive
Rosa Canina Fruit Extract
Astringent
Plankton Extract
Skin ConditioningButyrospermum Parkii Butter Unsaponifiables
Skin Conditioning
Tocopherol
Antioxidant
Ethyl Stearate
Emollient
Ethyl Linoleate
Emollient
Ethyl Palmitate
Emollient
Ethylhexyl Polyhydroxystearate
EmollientLecithin
EmollientXanthan Gum
EmulsifyingSucrose
HumectantLysine
Skin ConditioningGlyceryl Caprylate/Caprate
EmollientSodium Lauroyl Glutamate
Magnesium Chloride
Aluminum Hydroxide
EmollientCI 77891
Cosmetic ColorantIron Oxides
Water, C9-12 Alkane, Squalane, Coco-Caprylate/Caprate, Propanediol, Glycerin, Pentylene Glycol, Sorbitan Isostearate, Polyglyceryl-3 Polyricinoleate, Tribehenin, Ethyl Oleate, Butylene Glycol, Disteardimonium Hectorite, Ectoin, Silica, Rosa Canina Fruit Extract, Plankton Extract, Butyrospermum Parkii Butter Unsaponifiables, Tocopherol, Ethyl Stearate, Ethyl Linoleate, Ethyl Palmitate, Ethylhexyl Polyhydroxystearate, Lecithin, Xanthan Gum, Sucrose, Lysine, Glyceryl Caprylate/Caprate, Sodium Lauroyl Glutamate, Magnesium Chloride, Aluminum Hydroxide, CI 77891, Iron Oxides
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 GlycerinPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolSqualane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
Because squalane boosts hydration in the skin, it also comes with plenty of benefits: it is an antioxidant and can help fight free radicals and skin damage. Squalane is also found to have a detoxifying effect when applied.
Squalane comes from squalene, which occurs naturally within the sebum of our skin. It is one of the oils our skin produces to keep itself hydrated. Squalane is the hydrogenated version of squalene and has a longer shelf life.
Research shows that squalane is non-irritating (even at 100% concentration).
In general, it's a fantastic ingredient. It does a great job at hydrating the skin, and it's suitable for those with sensitive skin.
The source of squalane may impact malassezia / fungal acne. This is because olive oil derived squalane can contain impurities such as fatty acids and plant waxes. Sugarcane derived squalane is recommended for anyone with malassezia concerns.
Is squalane vegan?
This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.
Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.
Read more about squalene with an "e".
Learn more about SqualanePentylene 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.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolLecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of mixture of phospholipids.
This ingredient has emollient and emulsifying properties.
As an emollient, lecithen helps soften the skin and creates a barrier to keep moisture in.
As an emulsifier, it also helps prevent water and oil ingredients from separating. Lecithin can also help ingredients be better absorbed by the skin.
This is because the phospholipids in lecithin produce liposomes. Liposomes help other ingredients get through the skin barrier.
Depending on the source of this ingredient, lecithin may not be fungal acne safe. This is because some sources of lecithin come from soybean oil, which may feed the malassezia yeast that feeds fungal acne.
We recommend reaching out to the brand you are purchasing from to inquire about the source of their lecithin.
Learn more about LecithinTocopherol (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 TocopherolCi 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 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.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Kosas Revealer Skin-Improving Foundation SPF 25 35 ingredients
Glossier Stretch Fluid Foundation 33 ingredients
