Kinfield Sunglow SPF 30
71/100 overall score
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About this sunscreen
Kinfield Sunglow SPF 30 is a pure mineral sunscreen using zinc oxide as its only UV filter. Unusually for a mineral formula it keeps white cast low, with a balanced finish and a moderate, somewhat fuller feel. It does not commonly sting, is generally low on pore-clogging risk and is okay as a makeup base. Protection is rated moderate, and at 71.3 out of 100 it is a comfortable mineral option for those avoiding chemical filters.
Ingredient & SPF scores
☀️
UV protection
Moderate
42
- +41 Zinc Oxide at #1, UV filter (UVA1 +18)
- +1 Label claims (SPF 30)
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White cast
Low
70
- +100 Starting score
- −55 Zinc Oxide, 20.3% declared
- −2 Titanium Dioxide as pigment (CI 77891) at #28
- −15 Pure mineral formula (20.3% total declared)
- +36 Iron-oxide undertone, partial masking
- +3.6 PHSA dispersant, fights agglomeration
- +2.3 Coated minerals (Triethoxycaprylylsilane)
🪨
Heavy feel
Medium
55
- +100 Starting score
- −40 Zinc Oxide, 20.3% declared
- −5 Cetyl Alcohol at #5, rich gel-network thickener
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Fungal acne
Medium
59
- +100 Starting score
- −9 1 oils/butters that feed Malassezia (Helianthus Annuus Seed Oil)
- −32 3 long-chain (C12+) esters that feed Malassezia (Polyglyceryl-2 Dipolyhydroxystearate, Glyceryl Stearate Citrate, Glyceryl Stearate)
- +0 Simmondsia Chinensis Seed Oil at #19, jojoba wax ester, fungal-acne exception (not penalized)
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Fabric stains
Medium
45
- +100 Starting score
- −40 Iron-oxide pigments at #27, makeup-like collar marks (washable)
- −15 Zinc Oxide at #1, white marks, worst on dark fabric (washable)
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Moisture
Balanced
LightNourishing
- ← 5 Zinc Oxide at #1, mild sebum absorbent
- → 1 Glycerin at #15, the anchor humectant
- → 2 2 emollient lipids (Helianthus Annuus Seed Oil, Simmondsia Chinensis Seed Oil)
- → 1 1 fatty-alcohol emollients (Cetyl Alcohol)
✨
Finish
Balanced
MatteDewy
- ← 5 2 dry-touch emollients reduce greasy shine (Coco-Caprylate, Dicaprylyl Carbonate)
- → 2 2 emollient lipids (Helianthus Annuus Seed Oil, Simmondsia Chinensis Seed Oil)
💄
Makeup base
Okay
PillsPrimer
- → 5 Dry-touch esters, smooth fast-absorbing base
- ← 4 Gel polymers prone to pilling under friction (Xanthan Gum, Cellulose Gum)
- ← 7.5 High mineral load at #1 greys under foundation (tinted)
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance →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 (Zinc Oxide), high in the list, a primary filter
- ↑ 41 UV protection, incl. long-UVA (UVA1)
- ↑ 55 20.3% declared
- ↑ 40 20.3% declared
- ↑ 15 white marks, worst on dark fabric (washable)
- light ← 5 mild sebum absorbent
- pills ← 7.5 High mineral load greys under foundation (tinted)
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2 Water
Solvent base, the water phase
-
Emollient, softens and smooths skin
- matte ← 3 dry-touch emollient, anti-shine
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Emollient, softens and smooths skin
- matte ← 2 dry-touch emollient, anti-shine
-
Fatty alcohol, an emollient and thickener, not the drying kind
- ↑ 5 rich gel-network thickener
- 1 → nourishing fatty-alcohol emollient
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Thickener and texture, structures the gel or cream
-
Emulsifier, keeps oil and water blended
-
Humectant, pulls water into the skin
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Emulsifier, keeps oil and water blended
- ↑ 14 feeds malassezia
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10 Phytic Acid
Chelator, binds stray metal ions to keep the formula stable
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Thickener and texture, structures the gel or cream
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12 Xanthan Gum
Thickener and texture, structures the gel or cream
-
Supporting ingredient
-
Emollient, softens and smooths skin
-
15 Glycerin
Humectant, pulls water into the skin
- 1 → nourishing the anchor humectant
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Humectant, pulls water into the skin
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Emollient, softens and smooths skin
-
Botanical extract
- 1 → nourishing emollient lipid
- 1 → dewy emollient lipid
- ↑ 9 feeds malassezia
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Botanical extract
- 1 → nourishing emollient lipid
- 1 → dewy emollient lipid
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Botanical extract
-
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
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Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
Supporting ingredient
-
Chelator, binds stray metal ions to keep the formula stable
-
25 Mica
Colorant or pigment
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26 Mica
Colorant or pigment
-
27 Ci 77491
Colorant or pigment
- ↑ 40 makeup-like collar marks (washable)
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Colorant or pigment
-
29 Bergamot
Supporting ingredient
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30 Mandarin
Supporting ingredient
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31 Petitgrain
Supporting ingredient
-
Supporting ingredient
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33 Lime
Supporting ingredient
Does Kinfield Sunglow SPF 30 leave a white cast?
White cast is rated low, which is unusual for a pure mineral sunscreen. It wears with a balanced finish and a moderate, somewhat fuller feel.
Is the Kinfield Sunglow SPF 30 mineral or chemical?
It is pure mineral. Zinc oxide is its only UV filter, with no chemical filters.
Is it good under makeup?
It is rated okay as a makeup base. The low white cast helps, though the feel is a bit fuller than a lightweight chemical formula.