ThinkKids Zinc Oxide 23.4% Sunscreen SPF 50
69/100 overall score
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About this sunscreen
ThinkKids Zinc Oxide 23.4% is an SPF 50 mineral sunscreen relying solely on zinc oxide, formulated for children. Being a high-concentration mineral filter it is likely to leave a visible white cast and feels moderately heavier on skin, though it does not sting and has a low breakout-trigger rating. Protection is rated moderate with a balanced finish. At 69 out of 100 it is a solid mineral choice for sensitive or younger skin where white cast is an acceptable trade-off.
Ingredient & SPF scores
☀️
UV protection
Moderate
43
- +41 Zinc Oxide at #1, UV filter (UVA1 +18)
- +2 Label claims (SPF 50)
👻
White cast
High
30
- +100 Starting score
- −55 Zinc Oxide, 23.4% declared
- −15 Pure mineral formula (23.4% total declared)
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Heavy feel
Medium
55
- +100 Starting score
- −40 Zinc Oxide, 23.4% declared
- −5 Hydrogenated Castor Oil at #8, butter/occlusive fat
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Comedogenic
Low
99
- +100 Starting score
- −1 Olea Europaea Fruit Oil at #13, moderate comedogenic signal
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Fungal acne
Medium
47
- +100 Starting score
- −12 1 polysorbate/sorbitan emulsifiers that feed Malassezia (Sorbitan Stearate)
- −32 3 oils/butters that feed Malassezia (Helianthus Annuus Seed Oil, Olea Europaea Fruit Oil, Hydrogenated Castor Oil)
- −9 1 long-chain (C12+) esters that feed Malassezia (Polyglyceryl-10 Laurate)
- +0 Simmondsia Chinensis Seed Oil at #9, jojoba wax ester, fungal-acne exception (not penalized)
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Fabric stains
Low
85
- +100 Starting score
- −15 Zinc Oxide at #1, white marks, worst on dark fabric (washable)
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Moisture
Hydrating
LightNourishing
- ← 5 Zinc Oxide at #1, mild sebum absorbent
- → 7 Hyaluronic Acid at #7, hyaluronic family
- → 4 3 emollient lipids (Helianthus Annuus Seed Oil, Simmondsia Chinensis Seed Oil, Olea Europaea Fruit Oil)
- → 2 Light emollient/solvent (Caprylic/Capric Triglyceride)
✨
Finish
Balanced
MatteDewy
- → 5 3 emollient lipids (Simmondsia Chinensis Seed Oil, Olea Europaea Fruit Oil, Helianthus Annuus Seed Oil)
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Makeup base
Okay
PillsPrimer
- → 3 Primer-style base, volatile silicones and dimethicone slip
- ← 2 Occlusives/waxes float the foundation
- ← 15 High mineral load at #1 greys under foundation
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance →Skincare extras
Beneficial actives this formula contains. Informational only, not part of the rating: their effect depends on a concentration the label does not disclose.
- ✨ Aloe vera
- ✨ Vitamin C
Full ingredient list (19)
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 (Zinc Oxide), high in the list, a primary filter
- ↑ 41 UV protection, incl. long-UVA (UVA1)
- ↑ 55 23.4% declared
- ↑ 40 23.4% declared
- ↑ 15 white marks, worst on dark fabric (washable)
- light ← 5 mild sebum absorbent
- pills ← 15 High mineral load greys under foundation
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Soothing, skin-conditioning active
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Antioxidant, protects the formula and skin
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Emollient, softens and smooths skin
- 2 → nourishing light emollient
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Botanical extract
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Emollient, softens and smooths skin
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Humectant, pulls water into the skin
- 7 → nourishing hyaluronic family
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Plant oil, an emollient
- ↑ 5 butter/occlusive fat
- ↑ 14 feeds malassezia
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Botanical extract
- 2 → nourishing emollient lipid
- 3 → dewy emollient lipid
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Thickener and texture, structures the gel or cream
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Supporting ingredient
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Botanical extract
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Botanical extract
- ↑ 1 moderate comedogenic signal
- 1 → nourishing emollient lipid
- 1 → dewy emollient lipid
- ↑ 9 feeds malassezia
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Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
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Botanical extract
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Emulsifier, keeps oil and water blended
- ↑ 12 feeds malassezia
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Botanical extract
- 1 → nourishing emollient lipid
- 1 → dewy emollient lipid
- ↑ 9 feeds malassezia
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18 Tocopherol
Antioxidant, protects the formula and skin
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19 Water
Solvent base, the water phase
Does ThinkKids Zinc Oxide leave a white cast?
Yes, white cast is likely. It is a high-concentration mineral sunscreen with 23.4% zinc oxide, which commonly leaves a visible white film and feels moderately heavier on skin.
Is the ThinkKids Zinc Oxide 23.4% Sunscreen SPF 50 mineral or chemical?
It is a pure mineral sunscreen. Zinc oxide is the only UV filter, which makes it a common choice for sensitive and children's skin.
Is ThinkKids SPF 50 good?
It scores 69 out of 100, a solid mineral result. It does not sting and has a low breakout-trigger rating, with protection rated moderate, so it suits sensitive skin where some white cast is acceptable.