Muji Sunscreen Mist SPF 30 Pa+++
67/100 overall score
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About this sunscreen
Muji Sunscreen Mist SPF 30 PA+++ is a chemical spray sunscreen combining Ethylhexyl Methoxycinnamate, Octocrylene and Avobenzone with the film-forming Polysilicone-15. The mist format gives a lightweight, matte finish with low white cast and works well as a makeup base. Protection is moderate at SPF 30. With a score of 66.7, it is a convenient touch-up option, best applied generously since mists are easy to under-apply.
Ingredient & SPF scores
☀️
UV protection
Moderate
45
- +18 Ethylhexyl Methoxycinnamate at #2, UV filter
- +15.2 Octocrylene at #6, UV filter
- +28.5 Butyl Methoxydibenzoylmethane at #7, UV filter (UVA1 +15.2)
- +9.6 Polysilicone-15 at #10, UV filter
- −7 UVB coverage saturated
- ×0.9 Limited long-UVA1 coverage
- ×0.75 Avobenzone + octinoxate degrade each other in sunlight
- +2 Label claims (SPF 30, PA rating)
☢️
Health safety
Medium
50
- +100 Starting score
- −36 Octinoxate at #2 (regulatory/evidence concern)
- −10.5 Octocrylene at #6, stacked (regulatory/evidence concern)
- −3.5 Avobenzone at #7, stacked (regulatory/evidence concern)
🤧
Allergens
Low
97
- +100 Starting score
- −3 Photoallergen-tail UV filters (Octocrylene)
🔥
Eye sting
Medium
53
- +100 Starting score
- −16 Avobenzone at #7, migrates into eyes with sweat
- −15 Octocrylene at #6, migrates into eyes with sweat
- −16 Octinoxate at #2, migrates into eyes with sweat
🍄
Fungal acne
Safe
100
- +100 Starting score
- +0 Dimethicone at #3, a safe base that does not feed Malassezia
👕
Fabric stains
High
30
- +100 Starting score
- −45 Avobenzone at #7, reacts with iron in wash water into rust-yellow stains
- −15 Octocrylene at #6, co-stains alongside avobenzone
- −10 Avobenzone + Octocrylene, the classic staining pair
💧
Moisture
Balanced
LightNourishing
- ← 8 Volatile carriers flash off, leaving a dry finish
- → 4 Sodium Hyaluronate at #8, hyaluronic family
✨
Finish
Matte
MatteDewy
- ← 7 Volatile carriers flash off, leaving a dry finish
- ← 2 1 dry-touch emollients reduce greasy shine (Diisopropyl Sebacate)
💄
Makeup base
Good
PillsPrimer
- → 12 Primer-style base, volatile silicones and dimethicone slip
- → 2 Dry-touch esters, smooth fast-absorbing base
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance →Full ingredient list (10)
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.
-
Volatile silicone, flashes off for a light finish
- light ← 8 volatile carrier, flashes off
- matte ← 7 volatile carrier, flashes off
-
Legacy UV filter (Octinoxate), high in the list, a primary filter
- ↑ 18 UV protection
- ↑ 16 migrates into eyes with sweat
-
Emollient, softens and smooths skin
-
Emollient, softens and smooths skin
- matte ← 2 dry-touch emollient, anti-shine
-
Emollient, softens and smooths skin
-
Legacy UV filter (Octocrylene)
- ↑ 15.2 UV protection
- ↓ 10.5 stacked (regulatory/evidence concern)
- ↑ 15 migrates into eyes with sweat
- ↑ 15 co-stains alongside avobenzone
-
Legacy UV filter (Avobenzone)
- ↑ 28.5 UV protection, incl. long-UVA (UVA1)
- ↓ 3.5 stacked (regulatory/evidence concern)
- ↑ 16 migrates into eyes with sweat
- ↑ 45 reacts with iron in wash water into rust-yellow stains
-
Humectant, pulls water into the skin
- 4 → nourishing hyaluronic family
-
9 Water
Solvent base, the water phase
-
Modern UV filter, broad-spectrum and photostable (Polysilicone-15), low in the list, likely a minor contributor
- ↑ 9.6 UV protection
Is the Muji Sunscreen Mist mineral or chemical?
It is a chemical sunscreen. It combines Ethylhexyl Methoxycinnamate, Octocrylene and Avobenzone with the film-forming Polysilicone-15.
Does the Muji Sunscreen Mist work under makeup?
Yes. The mist gives a lightweight, matte finish with low white cast and works well as a makeup base. It is handy for touch-ups over the day.
What SPF is it and is it any good?
It is SPF 30 with moderate protection and a score of 66.7. Mists are easy to under-apply, so applying it generously is generally recommended for full coverage.