Works for:
based on ingredients and %- Moisturizing
- Anti-aging
Doesn't work for:
based on ingredients and %- Sun protection
Can it cause trouble?
- Irritation risk: medium
- Comedogenic risk ingredients: 1
Key actives
Product Summary
"Kosas - Revealer Skin Improving Foundation SPF 25" offers broad spectrum protection. It means that it protects from both UVA and UVB rays (you can remember UVB as "burning" sunlight - they cause sunburn. You can remember UVA rays as "aging" - they do not lead to sunburn, but they cause photodamage and contribute to early signs of skin aging and hyperpigmentation). On the negative side, the SPF of this product is not high enough. We recommend to use a sunscreen with at least SPF 30 daily.
It also works as a moisturizer, so you do not have to use an additional hydrating product.
Sunscreen filters
This product is a mineral sunscreen. It uses zinc oxide for sun protection. Zinc oxide almost never irritates the skin or stings eyes, but it can leave a white cast.
Irritation risk
This product contains some common irritants, including those without a benefit for the skin. We assess the overall irritancy of it to be medium. For a detailed overview of all potential irritants: click here
You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.
About the brand
According to Cruelty-Free Kitty "Kosas" is cruelty free and so is its parent company.
Price
The product retails for 42.00$ in the United States and for 35.00£ in the United Kingdom.
For a detailed price comparison: click here.
Moisturizing
What does the product description say?
, Niacinamide & Caffeine brighten and smooth , Squalane, Arnica & Provitamin B5 soothe and balance , Peptides & Hyaluronic Acid plump and hydrate , Mineral Reef-Safe SPF & Artemisia Flower Extract protect from UV and Blue Light
Source: Naturisimo
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from
within deeper layers of the skin. The following ingredients in this product do the job:
galactoarabinan, glycerin.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: caprylic/capric triglyceride, squalane.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: palmitoyl tripeptide-5, panthenol
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
Helps attract water to the upper layer of the skin
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
Helps attract water to the upper layer of the skin and can help improve skin barrier function
Helps to soften the upper layer of the skin
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.
Helps soften the upper layer of the skin
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
Helps create a non-greasy finish on the skin
Used to preserve products, dissolve other ingredients and create a nice product texture
An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Anti-aging
This product contains palmitoyl tripeptide-5. This ingredient might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works. The biggest anti-aging effect in this product comes from sun protection. Sun damage is the main factor causing early signs of skin aging. We, however, do not recommend using this product as a sunscreen because the protection it offers is not strong enough).
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Sun protection
This product offers broad spectrum sun protection, but it is weak. We recommend to use a broad spectrum sunscreen with at least SPF 30.
This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.
A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant
An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Sun protection | |
| Moisturizing |
Total Promises Fulfilled score: 75/100.
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Potential irritants
Comedogenic ingredients
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
Kosas Revealer Skin Improving Foundation SPF 25 | Current | $35.00 | |
 SkinMedica Total Defense and Repair SPF 50 | 75% | $68.00 | |
Suntegrity Clearspf - Sheer Moisturizing Daily Sunscreen Spf 30 | 73% | $38.00 | |
Replenix Tinted Oil-Free Face Sunscreen SPF50+ | 73% | $35.00 | |
 Ghost Democracy Invisible Lightweight Daily Face Sunscreen Spf33 | 73% | - | |
e.l.f. SUNTOUCHABLE! WHOA GLOW SPF 30 | 73% | $14.00 |
Key Actives
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Helps attract water to the upper layer of the skin and can help improve skin barrier function
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
Might be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes
Helps soften the upper layer of the skin
Helps to soften the upper layer of the skin
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
Helps attract water to the upper layer of the skin
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant
Potential irritants
A plant extract that can be irritating. It can have some anti-bacterial properties, but there are no evidence of a beneficial effect for skin
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
Helps oil and water mix together
Might be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes
Used to create a thicker product consistency and stabilize the formulation
Used to preserve products, dissolve other ingredients and create a nice product texture
Comedogenic ingredients
Helps oil and water mix together
All ingredients
An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation
Helps to soften the upper layer of the skin
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Creates an illusion of smoother and more radiant skin tone. Adds shimmer to the skin by reflecting light
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Helps oil and water mix together
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
Helps attract water to the upper layer of the skin and can help improve skin barrier function
An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.
Might be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes
A plant extract that can be irritating. It can have some anti-bacterial properties, but there are no evidence of a beneficial effect for skin
Used to create a thicker product consistency and stabilize the formulation
Used to stabilize the product formulation and can help absorb oil
Used to preserve products, dissolve other ingredients and create a nice product texture
Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin
Helps to retain moisture by creating a protective barrier on the skin. Rich in fatty acids. Improves product texture and helps with the penetration of other ingredients.
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin
An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear
A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant
Ingredient list view
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, Titanium dioxide, Ci 77891, Iron oxides, Zinc oxide
- Glycerol and the skin: holistic approach to its origin and functions
- Niacinamide - mechanisms of action and its topical use in dermatology
- Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x
- Contact Sensitization to Emulsifying Agents: An Underrated Issue?
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Skin moisturizing effects of panthenol-based formulations
- Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives as Used in Cosmetics
- Effects of Topical Arnica Gel on Post-Laser Treatment Bruises
- Effects of microcurrent application alone or in combination with topical Hypericum perforatum L. and Arnica montana L. on surgically induced wound healing in Wistar rats
- The seamy side of natural medicines: contact sensitization to arnica (Arnica montana L.) and marigold (Calendula officinalis L.)
- Accelerated resolution of laser‐induced bruising with topical 20% arnica: a rater‐blinded randomized controlled trial
- Vitamin E in dermatology
- Vitamin E and Skin Health
- Final Report on the Safety Assessment of Phenethyl Alcohol
- A review of inorganic UV filters zinc oxide and titanium dioxide
- Risk assessment of zinc oxide, a cosmetic ingredient used as a UV filter of sunscreens
- Characterization of the UVA protection provided by avobenzone, zinc oxide, and titanium dioxide in broad-spectrum sunscreen products
- Ultraviolet Protection Properties of Commercial Sunscreens and Sunscreens Containing Zno Nanorods
- ZnO nanoparticles and organic chemical UV-filters are equally well tolerated by human immune cells