AlumierMD Sheer Hydration Spf 40 Untinted
82/100 overall score
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About this sunscreen
AlumierMD Sheer Hydration SPF 40 Untinted is a pure mineral sunscreen using titanium dioxide and zinc oxide as its only filters, a good fit for sensitive skin. It wears with a balanced finish, a notably low white cast for a mineral formula, but a slightly heavier feel, does not commonly sting, and has a low pore-clogging profile. It sits okay under makeup. The SPF 40 rating delivers good protection, and at 81.5/100 it is a strong, well-tolerated mineral choice for everyday wear.
Ingredient & SPF scores
☀️
UV protection
Good
74
- +33 Titanium Dioxide at #1, UV filter (UVA1 +5)
- +41 Zinc Oxide at #2, UV filter (UVA1 +18)
- −1 UVA2 coverage saturated
- +1 Label claims (SPF 40)
👻
White cast
Low
62
- +100 Starting score
- −14 Zinc Oxide, 6.3% declared
- −18 Titanium Dioxide, 7% declared
- −10 Zinc Oxide + Titanium Dioxide together
- −8 Pure mineral formula (13.3% total declared)
- +5 PHSA dispersant, fights agglomeration
- +6.8 Coated minerals (Triethoxycaprylylsilane, Alumina)
🪨
Heavy feel
Medium
60
- +100 Starting score
- −8 Zinc Oxide, 6.3% declared
- −20 Titanium Dioxide, 7% declared
- −2 Synthetic Wax at #20, wax film
- −10 Both minerals in the top 3, dual mineral paste
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Fungal acne
Medium
54
- +100 Starting score
- −9 1 oils/butters that feed Malassezia (Lecithin)
- −37 3 long-chain (C12+) esters that feed Malassezia (Glyceryl Stearate, PEG-100 Stearate, Ceteareth-20)
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Fabric stains
Low
80
- +100 Starting score
- −15 Titanium Dioxide at #1, white marks, worst on dark fabric (washable)
- −5 Both minerals present, heavier deposit
💧
Moisture
Balanced
LightNourishing
- ← 5 Zinc Oxide at #2, mild sebum absorbent
- ← 2 Titanium Dioxide at #1, mild sebum absorbent
- → 4 Glycerin at #10, the anchor humectant
- → 1 Humectant polyols
- → 2 Light emollient/solvent (Caprylic/Capric Triglyceride)
- → 0.5 1 fatty-alcohol emollients (Cetearyl Alcohol)
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Makeup base
Okay
PillsPrimer
- → 2 Dry-touch esters, smooth fast-absorbing base
- ← 15 High mineral load at #1 greys under foundation
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
- +2 1 water-locking waxes
Full ingredient list (33)
What each ingredient does and how it moves each rating: green helps, red hurts, ↑ / ↓ give the direction, and ← / → 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 (Titanium Dioxide), high in the list, a primary filter
- ↑ 33 UV protection, incl. long-UVA (UVA1)
- ↑ 18 7% declared
- ↑ 20 7% declared
- ↑ 15 white marks, worst on dark fabric (washable)
- light ← 2 mild sebum absorbent
- pills ← 15 High mineral load greys under foundation
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Mineral UV filter (Zinc Oxide), high in the list, a primary filter
- ↑ 41 UV protection, incl. long-UVA (UVA1)
- ↑ 14 6.3% declared
- ↑ 8 6.3% declared
- light ← 5 mild sebum absorbent
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3 Water
Solvent base, the water phase
-
Emollient, softens and smooths skin
- 6 → dewy emollient lipid
-
Emollient, softens and smooths skin
- 2 → nourishing light emollient
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Humectant, pulls water into the skin
- 1 → nourishing humectant polyol
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Emollient, softens and smooths skin
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Fatty alcohol, an emollient and thickener, not the drying kind
- 0.5 → nourishing fatty-alcohol emollient
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Emollient, softens and smooths skin
-
10 Glycerin
Humectant, pulls water into the skin
- 4 → nourishing the anchor humectant
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Emulsifier, keeps oil and water blended
- ↑ 14 feeds malassezia
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Emulsifier, keeps oil and water blended
- ↑ 14 feeds malassezia
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13 Lecithin
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
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Botanical extract
-
15 Resveratrol
Antioxidant, protects the formula and skin
-
16 Glutathione
Antioxidant, protects the formula and skin
-
Antioxidant, protects the formula and skin
-
Antioxidant, protects the formula and skin
-
Thickener and texture, structures the gel or cream
-
Occlusive, seals moisture into the skin
- ↑ 2 wax film
- ↑ 2 wax water lock
-
Emollient, softens and smooths skin
-
22 Ceteareth-20
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
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23 Alumina
Supporting ingredient
-
Thickener and texture, structures the gel or cream
-
Supporting ingredient
-
26 Xanthan Gum
Thickener and texture, structures the gel or cream
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Thickener and texture, structures the gel or cream
-
Emulsifier, keeps oil and water blended
-
Supporting ingredient
-
Supporting ingredient
-
Chelator, binds stray metal ions to keep the formula stable
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Humectant, pulls water into the skin
-
Preservative, keeps the formula from spoiling
Does AlumierMD Sheer Hydration leave a white cast?
No, white cast is rated low, which is notable for a pure mineral formula using titanium dioxide and zinc oxide. The balanced finish generally wears clear.
Is the AlumierMD Sheer Hydration Spf 40 Untinted mineral or chemical?
It is mineral. Titanium dioxide and zinc oxide are the only UV filters, a good fit for sensitive skin.
Is AlumierMD Sheer Hydration a good sunscreen?
Yes, it scores 81.5/100 with good protection at SPF 40. The low white cast and well-tolerated mineral formula make it a strong everyday choice.