Hello Sunday The One That's A Serum SPF 45 Hydrating Serum
69/100 overall score
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About this sunscreen
Hello Sunday The One That's A Serum is an SPF 45 hydrating serum sunscreen using an older-school chemical filter blend of Ethylhexyl Salicylate, Avobenzone, Homosalate, and Octocrylene. It keeps a low white cast and a balanced, lightweight serum feel that layers easily into a routine. With good protection and a score of 68.5/100, it is a reasonable everyday choice, though the medium sweat-sting rating means care around the eyes.
Ingredient & SPF scores
☀️
UV protection
Good
60
- +8 Ethylhexyl Salicylate at #1, UV filter
- +30 Butyl Methoxydibenzoylmethane at #2, UV filter (UVA1 +16)
- +12 Homosalate at #3, UV filter
- +15.2 Octocrylene at #4, UV filter
- ×0.9 Limited long-UVA1 coverage
- +1 Label claims (SPF 45)
☢️
Health safety
Medium
46
- +100 Starting score
- −40 Homosalate at #3 (regulatory/evidence concern)
- −10.5 Octocrylene at #4, stacked (regulatory/evidence concern)
- −3.5 Avobenzone at #2, stacked (regulatory/evidence concern)
🤧
Allergens
Low
97
- +100 Starting score
- −3 Photoallergen-tail UV filters (Octocrylene)
🔥
Eye sting
Medium
43
- +100 Starting score
- −24 Avobenzone at #2, migrates into eyes with sweat
- −15 Octocrylene at #4, migrates into eyes with sweat
- −9 Homosalate at #3, migrates into eyes with sweat
- −9 Octisalate at #1, migrates into eyes with sweat
🔴
Comedogenic
Low
99
- +100 Starting score
- −1 Glycine Soja Oil at #14, moderate comedogenic signal
🍄
Fungal acne
High
40
- +100 Starting score
- −24 2 polysorbate/sorbitan emulsifiers that feed Malassezia (Polysorbate 60, Sorbitan Isostearate)
- −9 1 oils/butters that feed Malassezia (Glycine Soja Oil)
- −27 3 long-chain (C12+) esters that feed Malassezia (Polyglyceryl-4 Laurate, Polyglyceryl-6 Laurate, Polyglyceryl-3 Diisostearate)
👕
Fabric stains
High
25
- +100 Starting score
- −50 Avobenzone at #2, reacts with iron in wash water into rust-yellow stains
- −15 Octocrylene at #4, co-stains alongside avobenzone
- −10 Avobenzone + Octocrylene, the classic staining pair
💧
Moisture
Hydrating
LightNourishing
- ← 3 1 sebum-absorbing powders (Silica)
- → 10 Glycerin at #6, the anchor humectant
- → 4 Sodium Hyaluronate at #12, hyaluronic family
- → 1 1 emollient lipids (Glycine Soja Oil)
✨
Finish
Balanced
MatteDewy
- ← 3 1 sebum-absorbing powders (Silica)
- → 4 2 emollient lipids (Glycine Soja Oil, C12-15 Alkyl Benzoate)
💄
Makeup base
Okay
PillsPrimer
- → 3 1 soft-focus powders in moderation
- → 1 Dry-touch esters, smooth fast-absorbing base
- ← 0.5 Gel polymers prone to pilling under friction (Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer)
- ← 1.5 Humectant syrup tackiness (partly offset by the base)
🌊
Water resistance
Not resistant
Non-water-resistantWater-resistant
Nothing flagged in the ingredient list.
How we rate water resistance →Full ingredient list (47)
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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Legacy UV filter (Octisalate), high in the list, a primary filter
- ↑ 8 UV protection
- ↑ 9 migrates into eyes with sweat
-
Legacy UV filter (Avobenzone), high in the list, a primary filter
- ↑ 30 UV protection, incl. long-UVA (UVA1)
- ↓ 3.5 stacked (regulatory/evidence concern)
- ↑ 24 migrates into eyes with sweat
- ↑ 50 reacts with iron in wash water into rust-yellow stains
-
Legacy UV filter (Homosalate), high in the list, a primary filter
- ↑ 12 UV protection
- ↑ 9 migrates into eyes with sweat
-
Legacy UV filter (Octocrylene)
- ↑ 15.2 UV protection
- ↓ 10.5 stacked (regulatory/evidence concern)
- ↑ 15 migrates into eyes with sweat
- ↑ 15 co-stains alongside avobenzone
-
5 Water
Solvent base, the water phase
-
6 Glycerin
Humectant, pulls water into the skin
- 10 → nourishing the anchor humectant
-
Emollient, softens and smooths skin
-
Emollient, softens and smooths skin
- 3 → dewy emollient lipid
-
9 Silica
Mattifying powder, absorbs oil and blurs the finish
- light ← 3 sebum-absorbing powder
- matte ← 3 sebum-absorbing powder
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Botanical extract
-
11 Undecane
Emollient, softens and smooths skin
-
Humectant, pulls water into the skin
- 4 → nourishing hyaluronic family
-
Botanical extract
-
Plant oil, an emollient
- ↑ 1 moderate comedogenic signal
- 1 → nourishing emollient lipid
- 1 → dewy emollient lipid
- ↑ 9 feeds malassezia
-
Botanical extract
-
Botanical extract
-
17 Tocopherol
Antioxidant, protects the formula and skin
-
Botanical extract
-
Botanical extract
-
Antioxidant, protects the formula and skin
-
Botanical extract
-
Botanical extract
-
Botanical extract
-
Botanical extract
-
25 Fructose
Humectant, pulls water into the skin
-
26 Glucose
Humectant, pulls water into the skin
-
27 Tridecane
Emollient, softens and smooths skin
-
Antioxidant, protects the formula and skin
-
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
Thickener and texture, structures the gel or cream
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Antioxidant, protects the formula and skin
-
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
-
Fatty alcohol, an emollient and thickener, not the drying kind
-
Thickener and texture, structures the gel or cream
-
Emulsifier, keeps oil and water blended
- ↑ 9 feeds malassezia
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Fatty alcohol, an emollient and thickener, not the drying kind
-
Chelator, binds stray metal ions to keep the formula stable
-
Emulsifier, keeps oil and water blended
-
39 Maltodextrin
Humectant, pulls water into the skin
-
Protein, peptide or amino acid, conditions and hydrates skin
-
Emulsifier, keeps oil and water blended
- ↑ 12 feeds malassezia
-
Emulsifier, keeps oil and water blended
- ↑ 12 feeds malassezia
-
43 Inulin
Humectant, pulls water into the skin
-
44 Xanthan Gum
Thickener and texture, structures the gel or cream
-
45 Cellulose
Thickener and texture, structures the gel or cream
-
Preservative, keeps the formula from spoiling
-
47 Citric Acid
pH adjuster
Does Hello Sunday The One That's A Serum leave a white cast?
No, it is rated low for white cast and applies with a balanced, lightweight serum feel. It is a chemical sunscreen, so there is no mineral residue.
Is the Hello Sunday The One That's A Serum SPF 45 Hydrating Serum mineral or chemical, and what SPF?
It is a chemical sunscreen at SPF 45, using an older-school filter blend of Ethylhexyl Salicylate, Avobenzone, Homosalate, and Octocrylene.
Is this sunscreen serum any good?
It scores 68.5/100 with good protection, so it is a reasonable everyday pick. The medium sweat-sting rating means it is worth keeping away from the eyes.