The Seaweed Bath Co. Invisible Mineral SPF 50
74/100 overall score
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About this sunscreen
The Seaweed Bath Co. Invisible Mineral SPF 50 is a pure mineral sunscreen using zinc oxide. It wears lightweight for a mineral formula and does not sting, with a balanced finish and notably low white cast, living up to the invisible name better than many mineral options. It rates low for pore-clogging and works okay under makeup. At 74/100 with moderate protection, it is a comfortable mineral choice for daily wear, best for routine sun rather than long, intense exposure.
Ingredient & SPF scores
βοΈ
UV protection
Moderate
43
- +41 Zinc Oxide at #1, UV filter (UVA1 +18)
- +2 Label claims (SPF 50)
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White cast
Low
64
- +100 Starting score
- β28 Zinc Oxide, 10% declared
- β8 Pure mineral formula (10% total declared)
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Heavy feel
Low
82
- +100 Starting score
- β18 Zinc Oxide, 10% declared
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Fungal acne
Low
82
- +100 Starting score
- β18 1 polysorbate/sorbitan emulsifiers that feed Malassezia (Sorbitan Sesquioleate)
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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 5 1 sebum-absorbing powders (Polymethylsilsesquioxane)
- β 5 Zinc Oxide at #1, mild sebum absorbent
- β 2 1 emollient lipids (Squalane)
β¨
Finish
Balanced
MatteDewy
- β 6 1 sebum-absorbing powders (Polymethylsilsesquioxane)
- β 3 1 emollient lipids (Squalane)
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Makeup base
Okay
PillsPrimer
- β 8 1 velvet elastomer fillers, blur and grip
- β 2 Gel polymers prone to pilling under friction (Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer)
- 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¨ Bisabolol
- β¨ Green tea
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 28 10% declared
- β 18 10% 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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Emollient, softens and smooths skin
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Emollient, softens and smooths skin
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Emollient, softens and smooths skin
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Filter booster, photostabilizes the UV filters or lifts their SPF
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Mattifying powder, absorbs oil and blurs the finish
- light β 5 sebum-absorbing powder
- matte β 6 sebum-absorbing powder
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Emulsifier, keeps oil and water blended
- β 18 feeds malassezia
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Thickener and texture, structures the gel or cream
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10 Squalane
Emollient, softens and smooths skin
- 2 β nourishing emollient lipid
- 3 β dewy emollient lipid
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11 Bisabolol
Soothing, skin-conditioning active
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Botanical extract
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Supporting ingredient
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14 Kousou Ekisu
Supporting ingredient
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Botanical extract
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Botanical extract
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Botanical extract
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Supporting ingredient
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19 Tocopherol
Antioxidant, protects the formula and skin
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20 Ribes Nigrum
Supporting ingredient
Does The Seaweed Bath Co. Invisible Mineral leave a white cast?
White cast is rated low, which is notable for a mineral sunscreen and fits the invisible name. As a zinc oxide formula it may still show slightly on deeper tones, so blending helps.
Is the The Seaweed Bath Co. Invisible Mineral SPF 50 good for oily or acne-prone skin?
It rates low for pore-clogging and wears lightweight with a balanced finish, so it tends to suit oily and breakout-prone skin. It does not sting, which adds to the comfort.
Is this mineral or chemical?
It is a pure mineral sunscreen based on zinc oxide, with no chemical filters. That makes it a good fit if you prefer mineral-only sun care.