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Guerlain Blanc De Perle Lightening UV Base SPF 30 PA+++

Guerlain SPF 30
Guerlain Blanc De Perle Lightening UV Base SPF 30 PA+++

71/100 overall score

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Ingredient & SPF scores

☀️

UV protection

Good 62
  • +18 Ethylhexyl Methoxycinnamate at #3, UV filter
  • +31.4 Titanium Dioxide at #4, UV filter (UVA1 +4.8)
  • +28.8 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine at #14, UV filter (UVA1 +9.6)
  • −12 UVB coverage saturated
  • ×0.9 Limited long-UVA1 coverage
  • +2 Label claims (SPF 30, PA rating)
How we rate uv protection →
☢️

Health safety

High 64
  • +100 Starting score
  • −36 Octinoxate at #3 (regulatory/evidence concern)
How we rate health safety →
🤧

Allergens

Low 70
  • +100 Starting score
  • −18 Fragrance
  • −12 3 declared fragrance allergens
How we rate allergens →
👻

White cast

Low 93
  • +100 Starting score
  • −17.5 Titanium Dioxide at #4 (nano)
  • −2 Titanium Dioxide as pigment (CI 77891) at #13
  • +9.8 Iron-oxide undertone, partial masking
  • +1 PHSA dispersant, fights agglomeration
  • +1.3 Coated minerals (Alumina, Aluminum Hydroxide)
How we rate white cast →
🔥

Eye sting

Low 70
  • +100 Starting score
  • −16 Octinoxate at #3, migrates into eyes with sweat
  • −8 Fragrance
  • −6 3 declared fragrance allergens
How we rate eye sting →
🪨

Heavy feel

Low 84
  • +100 Starting score
  • −16 Titanium Dioxide at #4
  • −3 Hydrogenated Polyisobutene at #12, heavy oil
  • +2.9 Volatile hydrocarbon at #6, flashes off
How we rate heavy feel →
🔴

Comedogenic

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

Fungal acne

Low 77
  • +100 Starting score
  • −12 1 polysorbate/sorbitan emulsifiers that feed Malassezia (Sorbitan Sesquioleate)
  • −9 1 long-chain (C12+) esters that feed Malassezia (Sodium Myristoyl Glutamate)
  • −2 1 ubiquitous fatty ingredients (Stearic Acid), weak Malassezia signal
How we rate fungal acne →
👕

Fabric stains

Medium 50
  • +100 Starting score
  • −40 Iron-oxide pigments at #38, makeup-like collar marks (washable)
  • −10 Titanium Dioxide at #4, white marks, worst on dark fabric (washable)
How we rate fabric stains →
💧

Moisture

Balanced
LightNourishing
  • ← 3 2 sebum-absorbing powders (Silica Silylate, Polymethylsilsesquioxane)
  • ← 6 Volatile carriers flash off, leaving a dry finish
  • → 10 Glycerin at #5, the anchor humectant
  • → 2 2 strong humectants (Betaine, Ectoin)
  • → 1 Humectant polyols
How we rate moisture →

Finish

Balanced
MatteDewy
  • ← 2 2 sebum-absorbing powders (Polymethylsilsesquioxane, Silica Silylate)
  • ← 6 Volatile carriers flash off, leaving a dry finish
  • → 9 1 emollient lipids (C12-15 Alkyl Benzoate)
How we rate finish →
💄

Makeup base

Okay
PillsPrimer
  • → 4 Quick-setting carrier, fast, even canvas
  • → 3 Dry-touch esters, smooth fast-absorbing base
  • ← 2 Occlusives/waxes float the foundation
  • ← 1.5 Humectant syrup tackiness (partly offset by the base)
  • ← 1.5 High mineral load at #4 greys under foundation (tinted) (nano)
How we rate makeup base →
🌊

Water resistance

Not resistant
Non-water-resistantWater-resistant
  • +3 1 film-forming polymers that lock the formula on for water resistance
How we rate water resistance →

Full ingredient list (52)

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 Water

    Solvent base, the water phase

  2. Emollient, softens and smooths skin

    • 9 → dewy emollient lipid
  3. Legacy UV filter (Octinoxate), high in the list, a primary filter

    • ↑ 18 UV protection
    • ↑ 16 migrates into eyes with sweat
  4. Mineral UV filter (Titanium Dioxide)

    • ↑ 31.4 UV protection, incl. long-UVA (UVA1)
    • ↑ 10 white marks, worst on dark fabric (washable)
    • pills ← 1.5 High mineral load greys under foundation (tinted) (nano)
  5. 5 Glycerin

    Humectant, pulls water into the skin

    • 10 → nourishing the anchor humectant
  6. 6 Isododecane

    Volatile hydrocarbon, flashes off for a light finish

    • light ← 4 volatile carrier, flashes off
    • matte ← 4 volatile carrier, flashes off
  7. Humectant, pulls water into the skin

    • 1 → nourishing humectant polyol
  8. Emollient, softens and smooths skin

  9. Supporting ingredient

  10. Emollient, softens and smooths skin

  11. 11 Isohexadecane

    Volatile hydrocarbon, flashes off for a light finish

    • light ← 2 volatile carrier, flashes off
    • matte ← 2 volatile carrier, flashes off
  12. Emollient, softens and smooths skin

    • ↑ 3 heavy oil
  13. Colorant or pigment

  14. Modern UV filter, broad-spectrum and photostable (Tinosorb S), low in the list, likely a minor contributor

    • ↑ 28.8 UV protection, incl. long-UVA (UVA1)
  15. Mattifying powder, absorbs oil and blurs the finish

    • light ← 1.5 sebum-absorbing powder
    • matte ← 1 sebum-absorbing powder
  16. 16 Betaine

    Humectant, pulls water into the skin

    • 1 → nourishing humectant
  17. Emollient, softens and smooths skin

  18. Thickener and texture, structures the gel or cream

  19. Emollient, softens and smooths skin

  20. 20 Phenoxyethanol

    Preservative, keeps the formula from spoiling

  21. Thickener and texture, structures the gel or cream

    • ↑ 3 film former
  22. Colorant or pigment

  23. 23 Caprylyl Glycol

    Preservative, keeps the formula from spoiling

  24. Emollient, softens and smooths skin

  25. Emulsifier, keeps oil and water blended

    • ↑ 12 feeds malassezia
  26. 26 Alumina

    Supporting ingredient

  27. Thickener and texture, structures the gel or cream

  28. 28 Fragrance

    Fragrance

  29. Supporting ingredient

  30. Antioxidant, protects the formula and skin

  31. Supporting ingredient

  32. 32 Ectoin

    Soothing, skin-conditioning active

    • 1 → nourishing humectant
  33. Soothing, skin-conditioning active

  34. 34 Silica Silylate

    Mattifying powder, absorbs oil and blurs the finish

    • light ← 1.5 sebum-absorbing powder
    • matte ← 1 sebum-absorbing powder
  35. 35 Stearic Acid

    Emollient, softens and smooths skin

    • ↑ 2 minor malassezia feeder
  36. Humectant, pulls water into the skin

  37. Botanical extract

  38. 38 Ci 77492

    Colorant or pigment

    • ↑ 40 makeup-like collar marks (washable)
  39. 39 Ci 77491

    Colorant or pigment

  40. Botanical extract

  41. Antioxidant, protects the formula and skin

  42. Fragrance component, a declared allergen

  43. 43 BHT

    Antioxidant, protects the formula and skin

  44. Botanical extract

  45. 45 Geraniol

    Fragrance component, a declared allergen

  46. Fragrance component, a declared allergen

  47. Botanical extract

  48. Protein, peptide or amino acid, conditions and hydrates skin

  49. Botanical extract

  50. Supporting ingredient

    • ↑ 9 feeds malassezia
  51. Protein, peptide or amino acid, conditions and hydrates skin

  52. Humectant, pulls water into the skin

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