Guerlain Blanc De Perle UV Shield SPF 50+
81/100 overall score
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About this sunscreen
Guerlain Blanc De Perle UV Shield SPF 50+ is a hybrid sunscreen pairing chemical filters such as octinoxate, Tinosorb M, bemotrizinol and ensulizole. It wears with a balanced finish, low white cast and a lightweight feel, and its low breakout-trigger rating means it is generally suitable for acne-prone skin. Protection is excellent at SPF 50. With a high score of 80.6/100 it is one of the stronger daily sunscreens in this group.
Ingredient & SPF scores
☀️
UV protection
Excellent
87
- +18 Ethylhexyl Methoxycinnamate at #3, UV filter
- +45.6 Methylene Bis-Benzotriazolyl Tetramethylbutylphenol at #4, UV filter (UVA1 +17.1)
- +38.4 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine at #8, UV filter (UVA1 +12.8)
- +8.4 Phenylbenzimidazole Sulfonic Acid at #16, UV filter
- −24 UVB coverage saturated
- −1.5 UVA2 coverage saturated
- +2 Label claims (SPF 50)
☢️
Health safety
High
64
- +100 Starting score
- −36 Octinoxate at #3 (regulatory/evidence concern)
🤧
Allergens
Low
70
- +100 Starting score
- −18 Fragrance
- −12 3 declared fragrance allergens
👻
White cast
Low
86
- +100 Starting score
- −2 Titanium Dioxide as pigment (CI 77891) at #24
- −12 Tinosorb M at #4, may look bluish-grey on deeper skin tones
🔥
Eye sting
Low
69
- +100 Starting score
- −16 Octinoxate at #3, migrates into eyes with sweat
- −1 Ensulizole at #16, migrates into eyes with sweat
- −8 Fragrance
- −6 3 declared fragrance allergens
🍄
Fungal acne
Safe
98
- +100 Starting score
- −2 1 ubiquitous fatty ingredients (Cetearyl Glucoside), weak Malassezia signal
💧
Moisture
Hydrating
LightNourishing
- ← 1.5 1 sebum-absorbing powders (Silica)
- → 10 Glycerin at #7, the anchor humectant
- → 1 1 strong humectants (Ectoin)
- → 1 Humectant polyols
- → 0.5 1 fatty-alcohol emollients (Behenyl Alcohol)
✨
Finish
Balanced
MatteDewy
- ← 1 1 sebum-absorbing powders (Silica)
- ← 3 2 dry-touch emollients reduce greasy shine (Dicaprylyl Carbonate, Caprylyl Methicone)
💄
Makeup base
Okay
PillsPrimer
- → 1 Primer-style base, volatile silicones and dimethicone slip
- → 3 Dry-touch esters, smooth fast-absorbing base
- ← 1 Gel polymers prone to pilling under friction (Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer)
- ← 3 Humectant syrup tackiness
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
- +3 1 film-forming polymers that lock the formula on for water resistance
Full ingredient list (45)
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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1 Water
Solvent base, the water phase
-
Humectant, pulls water into the skin
-
Legacy UV filter (Octinoxate), high in the list, a primary filter
- ↑ 18 UV protection
- ↑ 16 migrates into eyes with sweat
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Modern UV filter, broad-spectrum and photostable (Tinosorb M)
- ↑ 45.6 UV protection, incl. long-UVA (UVA1)
- ↑ 12 may look bluish-grey on deeper skin tones
-
Emollient, softens and smooths skin
- matte ← 2 dry-touch emollient, anti-shine
-
Humectant, pulls water into the skin
- 1 → nourishing humectant polyol
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7 Glycerin
Humectant, pulls water into the skin
- 10 → nourishing the anchor humectant
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Modern UV filter, broad-spectrum and photostable (Tinosorb S), low in the list, likely a minor contributor
- ↑ 38.4 UV protection, incl. long-UVA (UVA1)
-
Emollient, softens and smooths skin
-
Fatty alcohol, an emollient and thickener, not the drying kind
- 0.5 → nourishing fatty-alcohol emollient
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Emollient, softens and smooths skin
- matte ← 1 dry-touch emollient, anti-shine
-
Emulsifier, keeps oil and water blended
-
Film former, locks the formula onto skin for water resistance
- ↑ 3 film former
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Fatty alcohol, an emollient and thickener, not the drying kind
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15 Silica
Mattifying powder, absorbs oil and blurs the finish
- light ← 1.5 sebum-absorbing powder
- matte ← 1 sebum-absorbing powder
-
Legacy UV filter (Ensulizole), low in the list, likely a minor contributor
- ↑ 8.4 UV protection
- ↑ 1 migrates into eyes with sweat
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17 Tromethamine
pH adjuster
-
Preservative, keeps the formula from spoiling
-
Emulsifier, keeps oil and water blended
-
Preservative, keeps the formula from spoiling
-
Humectant, pulls water into the skin
-
Emollient, softens and smooths skin
-
23 Fragrance
Fragrance
-
Colorant or pigment
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25 Xanthan Gum
Thickener and texture, structures the gel or cream
-
Emulsifier, keeps oil and water blended
- ↑ 2 minor malassezia feeder
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Chelator, binds stray metal ions to keep the formula stable
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Antioxidant, protects the formula and skin
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29 Carbomer
Thickener and texture, structures the gel or cream
-
30 Ectoin
Soothing, skin-conditioning active
- 1 → nourishing humectant
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Thickener and texture, structures the gel or cream
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Botanical extract
-
Humectant, pulls water into the skin
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Fragrance component, a declared allergen
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35 BHT
Antioxidant, protects the formula and skin
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Botanical extract
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37 Geraniol
Fragrance component, a declared allergen
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Fragrance component, a declared allergen
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Botanical extract
-
Botanical extract
-
Protein, peptide or amino acid, conditions and hydrates skin
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Botanical extract
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Humectant, pulls water into the skin
-
45 Ci 14700
Colorant or pigment
Is Guerlain Blanc De Perle UV Shield a good sunscreen?
Yes, it scores 80.6/100, among the higher ratings in its group. It combines excellent SPF 50 protection with a balanced, lightweight finish.
Does the Guerlain Blanc De Perle UV Shield SPF 50+ leave a white cast?
No, it is rated low for white cast. It wears with a balanced finish and a lightweight feel.
Is it mineral or chemical?
It is a hybrid sunscreen, using chemical filters including octinoxate, the modern Tinosorb M, bemotrizinol and ensulizole.