Klairs Mid-Day Blue Sun Lotion Spf 40 Pa++
81/100 overall score
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About this sunscreen
Klairs Mid-Day Blue Sun Lotion SPF 40 is a hybrid lotion blending chemical filters like ethylhexyl methoxycinnamate and Tinosorb S with mineral titanium dioxide and zinc oxide. It has a balanced finish, stays lightweight and carries a low sting risk, though white cast is moderate so some visibility is possible. Protection is rated excellent and makeup compatibility is okay. With a strong overall score, it is generally a solid daily choice.
Ingredient & SPF scores
βοΈ
UV protection
Excellent
98
- +18 Ethylhexyl Methoxycinnamate at #3, UV filter
- +31.4 Titanium Dioxide at #5, UV filter (UVA1 +4.8)
- +32.8 Zinc Oxide at #11, UV filter (UVA1 +14.4)
- +11.2 Isoamyl p-Methoxycinnamate at #12, UV filter
- +21.6 Diethylamino Hydroxybenzoyl Hexyl Benzoate at #13, UV filter (UVA1 +13.2)
- +28.8 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine at #14, UV filter (UVA1 +9.6)
- β32 UVB coverage saturated
- β14.8 UVA2 coverage saturated
- +1 Label claims (SPF 40)
β’οΈ
Health safety
High
64
- +100 Starting score
- β36 Octinoxate at #3 (regulatory/evidence concern)
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Allergens
Low
88
- +100 Starting score
- β12 Essential oils (Lavandula Angustifolia Oil, Eucalyptus Globulus Leaf Oil, Pelargonium Graveolens Flower Oil, β¦)
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White cast
Medium
43
- +100 Starting score
- β12 Zinc Oxide at #11
- β35 Titanium Dioxide at #5
- β10 Zinc Oxide + Titanium Dioxide together
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Eye sting
Low
84
- +100 Starting score
- β16 Octinoxate at #3, migrates into eyes with sweat
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Heavy feel
Low
82
- +100 Starting score
- β8 Zinc Oxide at #11
- β16 Titanium Dioxide at #5
- +6 Volatile silicone at #2, flashes off
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Fungal acne
Low
82
- +100 Starting score
- β18 1 polysorbate/sorbitan emulsifiers that feed Malassezia (Polysorbate 60)
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Fabric stains
Low
70
- +100 Starting score
- β15 Uvinul A Plus (DHHB) at #13, oil-soluble UVA filter, fabric stains
- β10 Titanium Dioxide at #5, white marks, worst on dark fabric (washable)
- β5 Both minerals present, heavier deposit
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Moisture
Hydrating
LightNourishing
- β 8 Volatile carriers flash off, leaving a dry finish
- β 10 Glycerin at #6, the anchor humectant
- β 2 Sodium Hyaluronate at #19, hyaluronic family
- β 2 2 strong humectants (Panthenol, Betaine)
- β 1 Humectant polyols
- β 1 Light emollient/solvent (Caprylic/Capric Triglyceride)
β¨
Finish
Balanced
MatteDewy
- β 7 Volatile carriers flash off, leaving a dry finish
- β 4 1 slippy emollient esters (Cetyl Ethylhexanoate)
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Makeup base
Okay
PillsPrimer
- β 8 Primer-style base, volatile silicones and dimethicone slip
- β 0.5 Gel polymers prone to pilling under friction (Acrylates/C10-30 Alkyl Acrylate Crosspolymer)
- β 3 Humectant syrup tackiness
- β 6 High mineral load at #5 greys under foundation
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Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance βSkincare extras
Beneficial actives this formula contains. Informational only, not part of the rating: their effect depends on a concentration the label does not disclose.
- β¨ Niacinamide
Full ingredient list (35)
What each ingredient does and how it moves each rating: green helps, red hurts, β / β give the direction, and β / β 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
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Volatile silicone, flashes off for a light finish
- light β 8 volatile carrier, flashes off
- matte β 7 volatile carrier, flashes off
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Legacy UV filter (Octinoxate), high in the list, a primary filter
- β 18 UV protection
- β 16 migrates into eyes with sweat
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Humectant, pulls water into the skin
- 1 β nourishing humectant polyol
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Mineral UV filter (Titanium Dioxide)
- β 31.4 UV protection, incl. long-UVA (UVA1)
- β 10 white marks, worst on dark fabric (washable)
- pills β 6 High mineral load greys under foundation
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6 Glycerin
Humectant, pulls water into the skin
- 10 β nourishing the anchor humectant
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Emollient, softens and smooths skin
- 4 β dewy slippy emollient ester
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Emollient, softens and smooths skin
- 1 β nourishing light emollient
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Soothing, skin-conditioning active
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Emulsifier, keeps oil and water blended
- β 18 feeds malassezia
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11 Zinc Oxide
Mineral UV filter (Zinc Oxide), low in the list, likely a minor contributor
- β 32.8 UV protection, incl. long-UVA (UVA1)
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Modern UV filter, broad-spectrum and photostable (Amiloxate), low in the list, likely a minor contributor
- β 11.2 UV protection
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Modern UV filter, broad-spectrum and photostable (Uvinul A Plus), low in the list, likely a minor contributor
- β 21.6 UV protection, incl. long-UVA (UVA1)
- β 15 oil-soluble UVA filter, fabric stains
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Modern UV filter, broad-spectrum and photostable (Tinosorb S), low in the list, likely a minor contributor
- β 28.8 UV protection, incl. long-UVA (UVA1)
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Emollient, softens and smooths skin
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Preservative, keeps the formula from spoiling
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17 Xanthan Gum
Thickener and texture, structures the gel or cream
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18 Arginine
pH adjuster
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Humectant, pulls water into the skin
- 2 β nourishing hyaluronic family
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20 Panthenol
Soothing, skin-conditioning active
- 1 β nourishing humectant
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21 Betaine
Humectant, pulls water into the skin
- 1 β nourishing humectant
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Thickener and texture, structures the gel or cream
-
Supporting ingredient
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Botanical extract
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Plant oil, an emollient
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Botanical extract
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Botanical extract
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Plant oil, an emollient
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Plant oil, an emollient
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Plant oil, an emollient
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31 Adenosine
Soothing, skin-conditioning active
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Chelator, binds stray metal ions to keep the formula stable
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33 Guaiazulene
Supporting ingredient
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Soothing, skin-conditioning active
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Protein, peptide or amino acid, conditions and hydrates skin
Does Klairs Mid-Day Blue Sun Lotion leave a white cast?
White cast is rated medium, so some visibility is possible, especially on deeper skin tones. The finish is balanced and lightweight.
Is the Klairs Mid-Day Blue Sun Lotion Spf 40 Pa++ mineral or chemical?
It is a hybrid, blending chemical filters with mineral titanium dioxide and zinc oxide. The SPF is rated 40.
Is it a good sunscreen?
Protection is rated excellent and the overall score is strong. It carries a low sting risk and makeup compatibility is okay.