SOS SPF 50

SOS Serum

Where to buy Possibly in stock

About this product

The SOS Serum SOS SPF 50 is a sunscreen. Our analysis of its 16 ingredients (13 low-risk) rates it Excellent (94/100). Based on its ingredients, it looks well-suited to dry and sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
16
Low-risk
13
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 4/2
Good for dry skin
Glycerin Hyaluronic Acid Dimethicone Sodium Polyacrylate
Caution for dry skin
Glycerin Sodium Polyacrylate
Oily/Acne-Prone Skin No data
Sensitive Skin 4/3
Good for sensitive skin
Zinc Oxide Glycerin Dimethicone Tocopheryl Acetate
Caution for sensitive skin
Glycerin Citric Acid Benzyl Alcohol

Ingredients list

16 total
Lower hazard (1) Higher hazard (5)
All16 Skin Conditioning7 Uv Absorber5 Skin Protecting5 Uv Filter4 Humectant4 Solvent3 Fragrance3 Preservative2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
4
Ethylhexyl Salicylate
(Uv Absorber, Uv Filter)
3
Phenylbenzimidazole Sulfonic Acid
(Uv Absorber, Uv Filter)
2
Butyl Methoxydibenzoylmethane
(Uv Absorber, Uv Filter)
1
Isoamyl p-Methoxycinnamate
(Uv Absorber, Uv Filter)
1
3
Titanium Dioxide
(Cosmetic Colorant, Opacifying, Sunscreen Agent, Uv Absorber)
Good for Sensitive Skin
Good for Sensitive Skin
2
3
Zinc Oxide
(Bulking Agent, Cosmetic Colorant, Skin Protecting, Sunscreen Agent)
Good for Oily Skin
Good for Oily Skin
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
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
B
Sodium Polyacrylate
(Absorbent, Emulsion Stabilising, Film Forming, Hair Fixing, Skin Conditioning Agent Emollient, Viscosity Controlling Agent, Viscosity Increasing Agent, Binding, Skin Conditioning)
Glycine Max Callus Culture
(Antioxidant, Humectant, Skin Conditioning, Skin Protecting)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
1
A
Dehydroacetic Acid
(Preservative)

My Ingredient Notes

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

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Key ingredients

Ethylhexyl Salicylate
Uv Absorber, Uv Filter
Phenylbenzimidazole Sulfonic Acid
Uv Absorber, Uv Filter
Butyl Methoxydibenzoylmethane
Uv Absorber, Uv Filter
Isoamyl p-Methoxycinnamate
Uv Absorber, Uv Filter
Titanium Dioxide
Uv Absorber
Zinc Oxide
Skin Protecting

Benefits

Good for dry skin
Good for sensitive skin

Concerns

Contains silicone
Contains eu allergen
Not fungal acne (malassezia) safe

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Ethylhexyl Salicylate
Uv absorber, Uv filter
Low-to-moderate hazard.Read moreShow less
EWG 4 Uv absorberUv filter
Phenylbenzimidazole Sulfonic Acid
Uv absorber, Uv filter
Low-to-moderate hazard.Read moreShow less
EWG 3 Uv absorberUv filter
Butyl Methoxydibenzoylmethane
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 2 Uv absorberUv filter
Isoamyl p-Methoxycinnamate
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 1 Uv absorberUv filter
Sodium Polyacrylate
Absorbent, Emulsion stabilising
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B AbsorbentEmulsion stabilisingFilm formingHair fixingSkin-conditioning agent -emollientViscosity controlling agentViscosity increasing agentBindingSkin conditioning
Glycine Max Callus Culture
Antioxidant, Humectant
Limited public safety data.Read moreShow less
EWG N/A AntioxidantHumectantSkin conditioningSkin protecting
Hyaluronic Acid
Skin conditioning, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningViscosity increasing agentAntistatic agentHumectantMoisturising
Dehydroacetic Acid
Preservative
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Preservative
Titanium Dioxide
Cosmetic colorant, Opacifying
Low-to-moderate hazard.Read moreShow less
EWG 1–3 Cosmetic colorantOpacifyingSunscreen agentUv absorber Good for Sensitive Skin
Zinc Oxide
Bulking agent, Cosmetic colorant
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Bulking agentCosmetic colorantSkin protectingSunscreen agent Good for Oily Skin
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
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
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens

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.

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