The One That's A Serum SPF50

Hello Sunday

Where to buy Possibly in stock

About this product

The Hello Sunday The One That's A Serum SPF50 is a sunscreen. Our analysis of its 35 ingredients (31 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to oily / acne-prone, dry, and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
35
Low-risk
31
Fragrance
Fragrance-free
Origin
United Kingdom
SPF
50 · blocks 98.0% UVB

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 10/6
Good for dry skin
Gluconolactone Dimethiconol Dicaprylyl Ether Caprylyl Glycol Sodium Hyaluronate Glycerin Propylene Glycol Pantolactone Dibutyl Adipate Dimethicone
Caution for dry skin
C20-22 Alkyl Phosphate Decyl Glucoside Xanthan Gum Caprylyl/Capryl Glucoside Glycerin Sodium Hydroxide
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Sodium Ascorbyl Phosphate
Sensitive Skin 6/3
Good for sensitive skin
Sodium Ascorbyl Phosphate Glycerin Hydroxyacetophenone Dimethicone Allantoin Aloe Barbadensis Leaf Juice Powder
Caution for sensitive skin
Gluconolactone Glycerin Propylene Glycol

Ingredients list

35 total
Lower hazard (1) Higher hazard (4)
All35 Skin Conditioning23 Solvent8 Humectant8 Uv Filter7 Uv Absorber6 Emulsion Stabilising6 Emollient5 Skin Protecting5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
B
Butyloctyl Salicylate
(Hair Conditioning, Skin Conditioning, Solvent)
1
A
Dibutyl Adipate
(Plasticizer, Skin Conditioning, Emollient, Solvent, Film Forming)
2
Diethylamino Hydroxybenzoyl Hexyl Benzoate
(Uv Absorber, Uv Filter)
4
Ethylhexyl Salicylate
(Uv Absorber, Uv Filter)
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
(Skin Conditioning, Uv Absorber, Uv Filter)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
2
Butyl Methoxydibenzoylmethane
(Uv Absorber, Uv Filter)
2
Diethylhexyl Butamido Triazone
(Uv Absorber, Uv Filter)
1
Ethylhexyl Triazone
(Uv Absorber, Uv Filter)
1
Dicaprylyl Ether
(Skin Conditioning, Emollient, Solvent)
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol
(Uv Filter)
1
B
C20-22 Alkyl Phosphate
(Emulsifying, Surfactant)
1
C20-22 Alcohols
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Binding, Viscosity Controlling)
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
Caprylyl/Capryl Glucoside
(Cleansing, Foaming, Surfactant)
1
Hydroxyacetophenone
(Antioxidant)
1
A
Allantoin
(Skin Conditioning, Skin Protecting, Soothing)
Good for Oily Skin
Good for Oily Skin
Good for Sensitive Skin
Good for Sensitive Skin
1
A
1,2-Hexanediol
(Solvent)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
B
Decyl Glucoside
(Cleansing, Emulsion Stabilising, Surfactant)
1
A
Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising)
Silicone
Silicone
1
Carnosine
(Skin Conditioning)
1
Gluconolactone
(Fragrance, Humectant, Solvent)
1
A
Sodium Ascorbyl Phosphate
(Antioxidant)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
Polyacrylate Crosspolymer-6
(Emulsion Stabilising, Viscosity Controlling)
1
Tetrasodium Glutamate Diacetate
(Chelating Agent)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
3
Aloe Barbadensis Leaf Juice Powder
(Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Pantolactone
(Humectant)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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No close formula match yet — browse other products like this

Key ingredients

Chemical UV Filter
Absorbs UV rays to help prevent sun damage.
Antioxidants
Shields skin from free radical damage.
PHA
Gently exfoliates and hydrates with less irritation.
Vitamin C
Brightens, evens tone, and supports collagen.
Vitamin E
Protects skin and soothes irritation.
Hyaluronic Acid
Hydrates by attracting and holding water.
Show all 6 key ingredients

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Redness ReducingSoothes visible redness and calms irritation.
Scar HealingImproves the look of marks and scars.
Barrier RepairStrengthen and restore your skin's natural barrier.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces IrritationEases discomfort and supports skin resilience.
BrighteningRestores radiance to dull, tired skin.
Reduces Large PoresMinimizes the look of enlarged pores.

Concerns

Contains silicone
Not fungal acne (malassezia) safe

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Butyloctyl Salicylate
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSkin conditioningSolvent
Dibutyl Adipate
Plasticizer, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A PlasticizerSkin conditioningEmollientSolventFilm forming
Diethylamino Hydroxybenzoyl Hexyl Benzoate
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 2 Uv absorberUv filter
Ethylhexyl Salicylate
Uv absorber, Uv filter
Low-to-moderate hazard.Read moreShow less
EWG 4 Uv absorberUv filter
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Skin conditioning, Uv absorber
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningUv absorberUv filter
Butyl Methoxydibenzoylmethane
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 2 Uv absorberUv filter
Diethylhexyl Butamido Triazone
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 2 Uv absorberUv filter
Ethylhexyl Triazone
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 1 Uv absorberUv filter
Dicaprylyl Ether
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningEmollientSolvent
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol
Uv filter
Limited public safety data.Read moreShow less
EWG N/A Uv filter
C20-22 Alkyl Phosphate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmulsifyingSurfactant
C20-22 Alcohols
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 Binding agentEmulsion stabilisingViscosity increasing agentBindingViscosity controlling
Caprylyl/Capryl Glucoside
Cleansing, Foaming
Low-hazard ingredient.Read moreShow less
EWG 1 CleansingFoamingSurfactant
Hydroxyacetophenone
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
+ 12 more — see the full ingredients list above
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry Skin
Allantoin
Skin conditioning, Skin protecting
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSkin protectingSoothing Good for Oily SkinGood for Sensitive Skin
Dimethiconol
Antifoaming agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentSkin conditioningEmollientMoisturising Silicone
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Aloe Barbadensis Leaf Juice Powder
Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 1–3 Skin conditioning Good for Sensitive Skin
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling Good for Dry Skin

How to use

How to use

  • 1 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

Sodium Ascorbyl Phosphate

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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