Kosas Revealer Skin-Improving Foundation SPF 25
75/100 overall score
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About this sunscreen
Kosas Revealer Skin-Improving Foundation SPF 25 is a tinted pure mineral formula using zinc oxide as its only sun filter. It wears with a balanced finish, low white cast, and a lightweight feel, and it does not commonly sting. The low breakout-trigger profile is reassuring for foundation wear. With moderate protection and a score of 75.0/100, it is a solid skin-improving foundation, though as makeup it should supplement rather than replace dedicated sunscreen.
Ingredient & SPF scores
βοΈ
UV protection
Moderate
41
- +41 Zinc Oxide at #1, UV filter (UVA1 +18)
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White cast
Low
95
- +100 Starting score
- β14 Zinc Oxide, 7.5% declared
- β2 Titanium Dioxide as pigment (CI 77891) at #34
- β3 Pure mineral formula (7.5% total declared)
- +13.3 Tinted formula, pigment masks the cast
- +0.6 PHSA dispersant, fights agglomeration
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Heavy feel
Low
92
- +100 Starting score
- β8 Zinc Oxide, 7.5% declared
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Fungal acne
High
35
- +100 Starting score
- β18 2 oils/butters that feed Malassezia (Lecithin, Hydrogenated Lecithin)
- β47 3 long-chain (C12+) esters that feed Malassezia (Glyceryl Oleate, Polyglyceryl-2 Dipolyhydroxystearate, Polyglyceryl-3 Diisostearate)
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Fabric stains
Medium
45
- +100 Starting score
- β40 Iron-oxide pigments at #35, makeup-like collar marks (washable)
- β15 Zinc Oxide at #1, white marks, worst on dark fabric (washable)
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Moisture
Hydrating
LightNourishing
- β 5 Zinc Oxide at #1, mild sebum absorbent
- β 10 Glycerin at #7, the anchor humectant
- β 2 Sodium Hyaluronate at #18, hyaluronic family
- β 1 1 strong humectants (Panthenol)
- β 1 1 emollient lipids (Squalane)
- β 1 Light emollient/solvent (Caprylic/Capric Triglyceride)
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Makeup base
Okay
PillsPrimer
- β 3 Humectant syrup tackiness
- β 7.5 High mineral load at #1 greys under foundation (tinted)
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Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance βSkincare extras
Beneficial actives this formula contains. Informational only, not part of the rating: their effect depends on a concentration the label does not disclose.
- β¨ Niacinamide
Full ingredient list (35)
What each ingredient does and how it moves each rating: green helps, red hurts, β / β give the direction, and β / β shift a slider toward its ends (finish, moisture, makeup base). Auto-derived from our scoring rules and the ingredient's position.
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Mineral UV filter (Zinc Oxide), high in the list, a primary filter
- β 41 UV protection, incl. long-UVA (UVA1)
- β 14 7.5% declared
- β 8 7.5% declared
- β 15 white marks, worst on dark fabric (washable)
- light β 5 mild sebum absorbent
- pills β 7.5 High mineral load greys under foundation (tinted)
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2 Water
Solvent base, the water phase
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Emollient, softens and smooths skin
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Fatty alcohol, an emollient and thickener, not the drying kind
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5 Undecane
Emollient, softens and smooths skin
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Emulsifier, keeps oil and water blended
- β 24 feeds malassezia
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7 Glycerin
Humectant, pulls water into the skin
- 10 β nourishing the anchor humectant
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8 Mica
Colorant or pigment
-
Colorant or pigment
-
Emollient, softens and smooths skin
- 1 β nourishing light emollient
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11 Niacinamide
Soothing, skin-conditioning active
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Emulsifier, keeps oil and water blended
- β 14 feeds malassezia
-
Humectant, pulls water into the skin
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14 Tridecane
Emollient, softens and smooths skin
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15 Propanediol
Humectant, pulls water into the skin
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Fatty alcohol, an emollient and thickener, not the drying kind
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Emollient, softens and smooths skin
- β 9 feeds malassezia
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Humectant, pulls water into the skin
- 2 β nourishing hyaluronic family
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Protein, peptide or amino acid, conditions and hydrates skin
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20 Panthenol
Soothing, skin-conditioning active
- 1 β nourishing humectant
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21 Squalane
Emollient, softens and smooths skin
- 1 β nourishing emollient lipid
- 1 β dewy emollient lipid
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22 Caffeine
Antioxidant, protects the formula and skin
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Botanical extract
-
Botanical extract
-
Antioxidant, protects the formula and skin
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Chelator, binds stray metal ions to keep the formula stable
-
Emollient, softens and smooths skin
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28 Maltodextrin
Humectant, pulls water into the skin
-
Humectant, pulls water into the skin
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30 Lecithin
Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
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Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
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32 Tocopherol
Antioxidant, protects the formula and skin
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Preservative, keeps the formula from spoiling
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Colorant or pigment
-
35 Iron Oxides
Colorant or pigment
- β 40 makeup-like collar marks (washable)
Does this Kosas foundation leave a white cast?
No, white cast is low. As a tinted foundation it matches to skin and does not show mineral whiteness.
Is the Kosas Revealer Skin-Improving Foundation SPF 25 good for oily or acne-prone skin?
It can suit both. The finish is balanced and the breakout-trigger risk is low, so it is generally agreeable for foundation wear.
Is it mineral or chemical?
It is pure mineral for sun protection, using zinc oxide as its only UV filter.
What SPF is it, and is it good?
It is SPF 25. It scores 75.0/100 with moderate protection. As makeup, it should supplement rather than replace dedicated sunscreen.