MizuMi UV Water Serum Sunscreen SPF 50+ Pa++++
76/100 overall score
Sign in to see this product's score for your skin.
About this sunscreen
MizuMi UV Water Serum Sunscreen SPF 50+ PA++++ is a pure mineral sunscreen built on Zinc Oxide and Titanium Dioxide. The finish is balanced and it does not commonly sting, though the white cast tends to be visible and the feel sits in the medium-weight range. It works okay as a base under makeup. With good broad-spectrum protection and a score of 76.4, it is a solid mineral pick for those who prioritize physical filters over an invisible finish.
Ingredient & SPF scores
☀️
UV protection
Good
77
- +41 Zinc Oxide at #2, UV filter (UVA1 +18)
- +33 Titanium Dioxide at #3, UV filter (UVA1 +5)
- −1 UVA2 coverage saturated
- +4 Label claims (SPF 50, PA rating)
👻
White cast
High
7
- +100 Starting score
- −55 Zinc Oxide at #2
- −50 Titanium Dioxide at #3
- −10 Zinc Oxide + Titanium Dioxide together
- −15 Pure mineral formula
- +30 Penalties exceed the scale, floored at 0
- +7 Coated minerals (Alumina)
🪨
Heavy feel
Medium
32
- +100 Starting score
- −40 Zinc Oxide at #2
- −30 Titanium Dioxide at #3
- −10 Both minerals in the top 3, dual mineral paste
- +12 Volatile hydrocarbon at #4, flashes off
🍄
Fungal acne
Medium
50
- +100 Starting score
- −50 5 long-chain (C12+) esters that feed Malassezia (Glyceryl Stearate, PEG-100 Stearate, Steareth-21)
👕
Fabric stains
Low
80
- +100 Starting score
- −15 Zinc Oxide at #2, white marks, worst on dark fabric (washable)
- −5 Both minerals present, heavier deposit
💧
Moisture
Light
LightNourishing
- ← 4 Volatile carriers flash off, leaving a dry finish
- ← 5 Zinc Oxide at #2, mild sebum absorbent
- ← 2 Titanium Dioxide at #3, mild sebum absorbent
- → 2 Sodium Hyaluronate at #25, hyaluronic family
- → 2 Humectant polyols
✨
Finish
Balanced
MatteDewy
- ← 4 Volatile carriers flash off, leaving a dry finish
- ← 2 1 dry-touch emollients reduce greasy shine (Neopentyl Glycol Diheptanoate)
💄
Makeup base
Okay
PillsPrimer
- → 3 Quick-setting carrier, fast, even canvas
- → 2 Dry-touch esters, smooth fast-absorbing base
- ← 2.5 Gel polymers prone to pilling under friction (Carbomer, Ammonium Acryloyldimethyltaurate/VP Copolymer)
- ← 15 High mineral load at #2 greys under foundation
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance →Full ingredient list (26)
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.
-
1 Water
Solvent base, the water phase
-
Mineral UV filter (Zinc Oxide), high in the list, a primary filter
- ↑ 41 UV protection, incl. long-UVA (UVA1)
- ↑ 15 white marks, worst on dark fabric (washable)
- light ← 5 mild sebum absorbent
- pills ← 15 High mineral load greys under foundation
-
Mineral UV filter (Titanium Dioxide), high in the list, a primary filter
- ↑ 33 UV protection, incl. long-UVA (UVA1)
- light ← 2 mild sebum absorbent
-
Volatile hydrocarbon, flashes off for a light finish
- light ← 4 volatile carrier, flashes off
- matte ← 4 volatile carrier, flashes off
-
Emollient, softens and smooths skin
- matte ← 2 dry-touch emollient, anti-shine
-
Humectant, pulls water into the skin
- 1 → nourishing humectant polyol
-
Humectant, pulls water into the skin
- 1 → nourishing humectant polyol
-
Emulsifier, keeps oil and water blended
- ↑ 14 feeds malassezia
-
9 Alumina
Supporting ingredient
-
Thickener and texture, structures the gel or cream
-
Chelator, binds stray metal ions to keep the formula stable
-
Emulsifier, keeps oil and water blended
- ↑ 14 feeds malassezia
-
13 Steareth-21
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
14 Steareth-2
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
Preservative, keeps the formula from spoiling
-
Humectant, pulls water into the skin
-
18 Simethicone
Emollient, softens and smooths skin
-
Emulsifier, keeps oil and water blended
-
pH adjuster
-
21 Carbomer
Thickener and texture, structures the gel or cream
-
Antioxidant, protects the formula and skin
-
Antioxidant, protects the formula and skin
-
24 Xanthan Gum
Thickener and texture, structures the gel or cream
-
Humectant, pulls water into the skin
- 2 → nourishing hyaluronic family
-
Botanical extract
Does the MizuMi UV Water Serum leave a white cast?
It can. As a pure mineral sunscreen on Zinc Oxide and Titanium Dioxide, its white cast tends to be visible, which is common with physical filters. Blending it in well and using a thin layer helps reduce the effect.
Is MizuMi UV Water Serum mineral or chemical?
It is a pure mineral sunscreen. The only UV filters are Zinc Oxide and Titanium Dioxide, with no chemical filters in the formula.
Is the MizuMi UV Water Serum any good?
It scores 76.4 out of 100 with good broad-spectrum protection at SPF 50+, so it is a solid mineral option. It does not commonly sting and works okay under makeup, though the visible white cast is the main trade-off.