Alastin Skincare Silkshield All Mineral Sunscreen SPF 30
73/100 overall score
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About this sunscreen
Alastin Skincare SilkShield All Mineral Sunscreen SPF 30 is a pure mineral sunscreen using zinc oxide. It wears lightweight with a balanced finish and works well under makeup, with only a medium white cast and no stinging. Pore-clogging risk is generally low, friendly to sensitive and breakout-prone skin. The labeled SPF 30 rates as moderate protection, and with a score of 72.9/100 it is a refined, makeup-friendly all-mineral choice.
Ingredient & SPF scores
βοΈ
UV protection
Moderate
42
- +41 Zinc Oxide at #1, UV filter (UVA1 +18)
- +1 Label claims (SPF 30)
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White cast
Medium
43
- +100 Starting score
- β42 Zinc Oxide, 20.0% declared
- β15 Pure mineral formula (20% total declared)
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Heavy feel
Low
78
- +100 Starting score
- β30 Zinc Oxide, 20.0% declared
- +7.5 Volatile silicone at #3, flashes off
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Fungal acne
Safe
100
- +100 Starting score
- +0 Dimethicone at #2, a safe base that does not feed Malassezia
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Fabric stains
Low
85
- +100 Starting score
- β15 Zinc Oxide at #1, white marks, worst on dark fabric (washable)
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Moisture
Light
LightNourishing
- β 3 1 sebum-absorbing powders (Methyl Methacrylate Crosspolymer)
- β 8 Volatile carriers flash off, leaving a dry finish
- β 5 Zinc Oxide at #1, mild sebum absorbent
- β 1 1 strong humectants (Ectoin)
- β 4 1 emollient lipids (Squalane)
β¨
Finish
Balanced
MatteDewy
- β 3 1 sebum-absorbing powders (Methyl Methacrylate Crosspolymer)
- β 7 Volatile carriers flash off, leaving a dry finish
- β 6 1 emollient lipids (Squalane)
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Makeup base
Good
PillsPrimer
- β 12 Primer-style base, volatile silicones and dimethicone slip
- β 8 1 velvet elastomer fillers, blur and grip
- β 15 High mineral load at #1 greys under foundation
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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¨ Vitamin E
Full ingredient list (20)
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 42 20.0% declared
- β 30 20.0% declared
- β 15 white marks, worst on dark fabric (washable)
- light β 5 mild sebum absorbent
- pills β 15 High mineral load greys under foundation
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Emollient, softens and smooths skin
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Volatile silicone, flashes off for a light finish
- light β 8 volatile carrier, flashes off
- matte β 7 volatile carrier, flashes off
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Emollient, softens and smooths skin
-
5 Squalane
Emollient, softens and smooths skin
- 4 β nourishing emollient lipid
- 6 β dewy emollient lipid
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Emulsifier, keeps oil and water blended
-
Film former, locks the formula onto skin for water resistance
-
Mattifying powder, absorbs oil and blurs the finish
- light β 3 sebum-absorbing powder
- matte β 3 sebum-absorbing powder
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Emollient, softens and smooths skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Protein, peptide or amino acid, conditions and hydrates skin
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Botanical extract
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13 Ectoin
Soothing, skin-conditioning active
- 1 β nourishing humectant
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Supporting ingredient
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15 Tocopherol
Antioxidant, protects the formula and skin
-
Emollient, softens and smooths skin
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Thickener and texture, structures the gel or cream
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Thickener and texture, structures the gel or cream
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Antioxidant, protects the formula and skin
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Supporting ingredient
Does Alastin SilkShield leave a white cast?
White cast is rated medium, so it can show slightly, especially on deeper skin tones. The finish is balanced and lightweight and it does not sting.
Is the Alastin Skincare Silkshield All Mineral Sunscreen SPF 30 mineral or chemical?
It is a pure mineral sunscreen using only zinc oxide, with no chemical UV filters. That makes it a fit for sensitive skin that prefers physical filters.
Is the Alastin Skincare Silkshield All Mineral Sunscreen SPF 30 good under makeup?
Yes, it is rated good as a makeup base, with low pore-clogging risk. The labeled SPF 30 rates as moderate protection, and it scores 72.9/100.