Altruist Primer SPF50
91/100 overall score
Sign in to see this product's score for your skin.
About this sunscreen
Altruist Primer SPF50 is a hybrid primer built on a broad modern filter set including Diethylamino Hydroxybenzoyl Hexyl Benzoate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Diethylhexyl Butamido Triazone, and Ethylhexyl Triazone, alongside avobenzone and octisalate. It keeps white cast low, settles to a balanced finish, feels lightweight, and is unlikely to sting. Protection is excellent and the high overall score of 90.8/100 makes it a strong primer-and-sunscreen step for daily wear.
Ingredient & SPF scores
☀️
UV protection
Excellent
100
- +36 Diethylamino Hydroxybenzoyl Hexyl Benzoate at #3, UV filter (UVA1 +22)
- +28.5 Butyl Methoxydibenzoylmethane at #4, UV filter (UVA1 +15.2)
- +7.6 Ethylhexyl Salicylate at #7, UV filter
- +38.4 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine at #8, UV filter (UVA1 +12.8)
- +19.2 Diethylhexyl Butamido Triazone at #10, UV filter
- +17.6 Ethylhexyl Triazone at #11, UV filter
- +8.4 Phenylbenzimidazole Sulfonic Acid at #13, UV filter
- −30.4 UVB coverage saturated
- −20.3 UVA2 coverage saturated
- −5 UVA1 coverage saturated
- +2 Label claims (SPF 50)
☢️
Health safety
High
90
- +100 Starting score
- −10 Avobenzone at #4 (regulatory/evidence concern)
🔥
Eye sting
Low
77
- +100 Starting score
- −16 Avobenzone at #4, migrates into eyes with sweat
- −6 Octisalate at #7, migrates into eyes with sweat
- −1 Ensulizole at #13, migrates into eyes with sweat
🍄
Fungal acne
Low
77
- +100 Starting score
- −23 2 long-chain (C12+) esters that feed Malassezia (Glyceryl Stearate, Sodium Stearoyl Glutamate)
👕
Fabric stains
Medium
40
- +100 Starting score
- −45 Avobenzone at #4, reacts with iron in wash water into rust-yellow stains
- −15 Uvinul A Plus (DHHB) at #3, oil-soluble UVA filter, fabric stains
💧
Moisture
Hydrating
LightNourishing
- → 10 Glycerin at #5, the anchor humectant
✨
Finish
Balanced
MatteDewy
- ← 2 1 dry-touch emollients reduce greasy shine (Dicaprylyl Ether)
- → 9 1 emollient lipids (C12-15 Alkyl Benzoate)
💄
Makeup base
Okay
PillsPrimer
- → 3 Dry-touch esters, smooth fast-absorbing base
- ← 3 Humectant syrup tackiness
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance →Full ingredient list (23)
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 Water
Solvent base, the water phase
-
Emollient, softens and smooths skin
- 9 → dewy emollient lipid
-
Modern UV filter, broad-spectrum and photostable (Uvinul A Plus), high in the list, a primary filter
- ↑ 36 UV protection, incl. long-UVA (UVA1)
- ↑ 15 oil-soluble UVA filter, fabric stains
-
Legacy UV filter (Avobenzone)
- ↑ 28.5 UV protection, incl. long-UVA (UVA1)
- ↑ 16 migrates into eyes with sweat
- ↑ 45 reacts with iron in wash water into rust-yellow stains
-
5 Glycerin
Humectant, pulls water into the skin
- 10 → nourishing the anchor humectant
-
Emollient, softens and smooths skin
- matte ← 2 dry-touch emollient, anti-shine
-
Legacy UV filter (Octisalate)
- ↑ 7.6 UV protection
- ↑ 6 migrates into eyes with sweat
-
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)
-
Humectant, pulls water into the skin
-
Modern UV filter, broad-spectrum and photostable (Iscotrizinol), low in the list, likely a minor contributor
- ↑ 19.2 UV protection
-
Modern UV filter, broad-spectrum and photostable (Uvinul T 150), low in the list, likely a minor contributor
- ↑ 17.6 UV protection
-
Emulsifier, keeps oil and water blended
- ↑ 14 feeds malassezia
-
Legacy UV filter (Ensulizole), low in the list, likely a minor contributor
- ↑ 8.4 UV protection
- ↑ 1 migrates into eyes with sweat
-
Thickener and texture, structures the gel or cream
-
Preservative, keeps the formula from spoiling
-
Humectant, pulls water into the skin
-
17 Xanthan Gum
Thickener and texture, structures the gel or cream
-
Humectant, pulls water into the skin
-
Fatty alcohol, an emollient and thickener, not the drying kind
-
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
Antioxidant, protects the formula and skin
-
Thickener and texture, structures the gel or cream
-
pH adjuster
Is Altruist Primer SPF50 mineral or chemical?
It is a hybrid primer built mainly on modern chemical filters such as Diethylamino Hydroxybenzoyl Hexyl Benzoate and Ethylhexyl Triazone, alongside avobenzone and octisalate. It leans toward a modern chemical filter set.
Does the Altruist Primer SPF50 leave a white cast?
No, it keeps white cast low and settles to a balanced finish. It feels lightweight and is unlikely to sting.
Is it any good?
It scores 90.8/100, a strong result, with excellent protection. It works as both a primer and a sunscreen step for daily wear.