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One Skin Os-01 Shield Protect + Repair SPF 30+ Tinted

One Skin SPF 30
One Skin Os-01 Shield Protect + Repair SPF 30+ Tinted

72/100 overall score

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Ingredient & SPF scores

☀️

UV protection

Moderate 42
  • +41 Zinc Oxide at #1, UV filter (UVA1 +18)
  • +1 Label claims (SPF 30)
How we rate uv protection →
☢️

Health safety

High 100
  • +100 Starting score
How we rate health safety →
🤧

Allergens

Low 100
  • +100 Starting score
How we rate allergens →
👻

White cast

Low 87
  • +100 Starting score
  • −42 Zinc Oxide, 17.5% declared
  • −15 Pure mineral formula (17.5% total declared)
  • +39.9 Tinted formula, pigment masks the cast
  • +1.7 PHSA dispersant, fights agglomeration
  • +2.3 Coated minerals (Triethoxycaprylylsilane, Alumina)
How we rate white cast →
🔥

Eye sting

Low 100
  • +100 Starting score
How we rate eye sting →
🪨

Heavy feel

Medium 43
  • +100 Starting score
  • −30 Zinc Oxide, 17.5% declared
  • −12 Cetyl Palmitate at #7, wax film
  • −5 Cetearyl Alcohol at #6, rich gel-network thickener
  • −10 Mineral suspended in a dense emollient base (basic)
How we rate heavy feel →
🔴

Comedogenic

Low 100
  • +100 Starting score
How we rate comedogenic →
🍄

Fungal acne

High 22
  • +100 Starting score
  • −36 2 polysorbate/sorbitan emulsifiers that feed Malassezia (Sorbitan Palmitate, Sorbitan Olivate)
  • −9 1 oils/butters that feed Malassezia (Lecithin)
  • −33 2 long-chain (C12+) esters that feed Malassezia (Cetyl Palmitate, Polyglyceryl-3 Polyricinoleate)
  • +0 Caprylic/Capric Triglyceride at #3, a safe base that does not feed Malassezia
How we rate fungal acne →
👕

Fabric stains

Medium 45
  • +100 Starting score
  • −40 Iron-oxide pigments at #42, makeup-like collar marks (washable)
  • −15 Zinc Oxide at #1, white marks, worst on dark fabric (washable)
How we rate fabric stains →
💧

Moisture

Hydrating
LightNourishing
  • ← 1.5 1 sebum-absorbing powders (Oryza Sativa Starch)
  • ← 5 Zinc Oxide at #1, mild sebum absorbent
  • → 10 Glycerin at #4, the anchor humectant
  • → 4 Light emollient/solvent (Caprylic/Capric Triglyceride)
  • → 1 1 fatty-alcohol emollients (Cetearyl Alcohol)
How we rate moisture →

Finish

Balanced
MatteDewy
  • ← 1 1 sebum-absorbing powders (Oryza Sativa Starch)
How we rate finish →
💄

Makeup base

Okay
PillsPrimer
  • ← 3 Humectant syrup tackiness
  • ← 7.5 High mineral load at #1 greys under foundation (tinted)
How we rate makeup base →
🌊

Water resistance

Not resistant
Non-water-resistantWater-resistant
  • +7 1 water-locking waxes
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.

  • ✨ Bisabolol
  • ✨ Allantoin

Full ingredient list (42)

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. 1 Zinc Oxide

    Mineral UV filter (Zinc Oxide), high in the list, a primary filter

    • ↑ 41 UV protection, incl. long-UVA (UVA1)
    • ↑ 42 17.5% declared
    • ↑ 30 17.5% declared
    • ↑ 15 white marks, worst on dark fabric (washable)
    • light ← 5 mild sebum absorbent
    • pills ← 7.5 High mineral load greys under foundation (tinted)
  2. 2 Water

    Solvent base, the water phase

  3. Emollient, softens and smooths skin

    • 4 → nourishing light emollient
  4. 4 Glycerin

    Humectant, pulls water into the skin

    • 10 → nourishing the anchor humectant
  5. Supporting ingredient

  6. Fatty alcohol, an emollient and thickener, not the drying kind

    • ↑ 5 rich gel-network thickener
    • 1 → nourishing fatty-alcohol emollient
  7. Emollient, softens and smooths skin

    • ↑ 12 wax film
    • ↑ 24 feeds malassezia
    • ↑ 7 wax water lock
  8. Emulsifier, keeps oil and water blended

  9. Emulsifier, keeps oil and water blended

  10. Emulsifier, keeps oil and water blended

    • ↑ 18 feeds malassezia
  11. Emulsifier, keeps oil and water blended

    • ↑ 18 feeds malassezia
  12. Botanical extract

  13. Antioxidant, protects the formula and skin

  14. 14 Bisabolol

    Soothing, skin-conditioning active

  15. 15 Allantoin

    Soothing, skin-conditioning active

  16. Emollient, softens and smooths skin

  17. Thickener and texture, structures the gel or cream

  18. Emollient, softens and smooths skin

  19. Emulsifier, keeps oil and water blended

    • ↑ 9 feeds malassezia
  20. 20 Isostearic Acid

    Emollient, softens and smooths skin

  21. 21 Lecithin

    Emulsifier, keeps oil and water blended

    • ↑ 9 feeds malassezia
  22. Antioxidant, protects the formula and skin

  23. Antioxidant, protects the formula and skin

  24. 24 Decapeptide-52

    Protein, peptide or amino acid, conditions and hydrates skin

  25. 25 Oryza Sativa Starch

    Mattifying powder, absorbs oil and blurs the finish

    • light ← 1.5 sebum-absorbing powder
    • matte ← 1 sebum-absorbing powder
  26. Botanical extract

  27. 27 Acai Extract

    Botanical extract

  28. Botanical extract

  29. Botanical extract

  30. 30 Caprylyl Glycol

    Preservative, keeps the formula from spoiling

  31. Humectant, pulls water into the skin

  32. 32 Hexylene Glycol

    Humectant, pulls water into the skin

  33. 33 Xanthan Gum

    Thickener and texture, structures the gel or cream

  34. 34 Sodium Phytate

    Chelator, binds stray metal ions to keep the formula stable

  35. Humectant, pulls water into the skin

  36. 36 Phenoxyethanol

    Preservative, keeps the formula from spoiling

  37. 37 Sodium Benzoate

    Preservative, keeps the formula from spoiling

  38. 38 Potassium Sorbate

    Preservative, keeps the formula from spoiling

  39. Supporting ingredient

  40. 40 Alumina

    Supporting ingredient

  41. 41 Magnesium Oxide

    Supporting ingredient

  42. 42 Ci 77491

    Colorant or pigment

    • ↑ 40 makeup-like collar marks (washable)
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