Guerlain SOS Serum, for Sensitive and Intolerant Skins

Guerlain

Guerlain SOS Serum, for Sensitive and Intolerant Skins

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About this product

The Guerlain SOS Serum, for Sensitive and Intolerant Skins is a serums, essence, ampoule. Our analysis of its 36 ingredients (24 low-risk) rates it Excellent (88/100). Based on its ingredients, it looks well-suited to dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
36
Low-risk
24
Fragrance
Fragrance-free
Origin
France

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 9/5
Good for dry skin
Glycereth-26 Cetearyl Isononanoate Isostearyl Neopentanoate Caprylic/Capric/Succinic Triglyceride Butylene Glycol Sodium Hyaluronate Glycerin Propylene Glycol PEG-75
Caution for dry skin
Xanthan Gum Glycerin Hydrogenated Lecithin Steareth-21 PEG-40 Hydrogenated Castor Oil
Oily/Acne-Prone Skin No data
Sensitive Skin 5/11
Good for sensitive skin
Stearyl Glycyrrhetinate Glycerin Tocopheryl Linoleate Tocopheryl Acetate Aloe Barbadensis Leaf
Caution for sensitive skin
Butylene Glycol Glycerin Propylene Glycol Tromethamine PEG-40 Hydrogenated Castor Oil Methylparaben Ethylparaben Phenoxyethanol Butylparaben Propylparaben Aloe Barbadensis Leaf

Ingredients list

36 total
Lower hazard (1) Higher hazard (7)
All36 Skin Conditioning29 Fragrance10 Humectant8 Solvent6 Preservative6 Viscosity Controlling6 Emulsion Stabilising5 Emulsifying4
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Glycereth-26
(Humectant, Viscosity Decreasing Agent, Solvent, Viscosity Controlling)
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
1
B
Cetearyl Isononanoate
(Hair Conditioning, Skin Conditioning, Emollient)
1
B
Isostearyl Neopentanoate
(Binding Agent, Skin Conditioning, Emollient, Binding)
Bad for Sensitive Skin
Bad for Sensitive Skin
Bad for Oily Skin
Bad for Oily Skin
3
A
PEG-75
(Binding Agent, Humectant, Solvent)
3
B
Steareth-21
(Sufactant, Emulsifying, Surfactant)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
4
A
Methylparaben
(Fragrance, Preservative)
Paraben
Paraben
1
A
Stearyl Glycyrrhetinate
(Flavoring Agent, Skin Conditioning, Soothing)
2
A
Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant)
1
A
Tocopheryl Linoleate
(Antioxidant, Skin Conditioning, Skin Protecting)
6
Polyperfluoromethylisopropyl Ether
(Skin Conditioning)
2
A
Tromethamine
(Fragrance, Ph Adjuster, Buffering Agent, Masking)
1
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling)
1
A
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
2
A
Tetrasodium EDTA
(Chelating Agent)
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
4
B
Chlorhexidine Digluconate
(Cosmetic Biocide, Oral Care Agent, Preservative, Antimicrobial)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Biosaccharide Gum-1
(Skin Conditioning)
4
A
Ethylparaben
(Fragrance, Preservative)
Paraben
Paraben
7
A
Butylparaben
(Fragrance, Preservative, Masking)
Paraben
Paraben
B
Aloe Barbadensis Leaf
(Masking)
Good for Sensitive Skin
Good for Sensitive Skin
7
A
Propylparaben
(Fragrance, Preservative, Perfuming)
Paraben
Paraben
1
Caprylic/Capric/Succinic Triglyceride
(Emollient, Emulsifying, Skin Conditioning)
3
B
PEG-40 Hydrogenated Castor Oil
(Fragrance, Emulsifying, Surfactant, Perfuming)
Fungal Acne
Fungal Acne Trigger
Crataegus Monogina Leaf Extract
1
Hydrolyzed Linseed Extract
(Skin Conditioning, Sunscreen Agent)
Artemisia Capillaris Extract
(Skin Conditioning)
Lilium Candidum Flower Water
(Skin Conditioning)
Skeletonema Costatum Extract
(Skin Conditioning)
1
Yeast Extract
(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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Key ingredients

Butylene Glycol
Skin Conditioning, Humectant
Glycereth-26
Humectant
Glycerin
Humectant, Skin Protecting
Cetearyl Isononanoate
Skin Conditioning, Emollient
Isostearyl Neopentanoate
Skin Conditioning, Emollient
PEG-75
Humectant

Benefits

Good for dry skin

Concerns

Contains paraben
Not fungal acne (malassezia) safe
Butylparaben — higher EWG
Propylparaben — higher EWG
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Glycereth-26
Humectant, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantViscosity decreasing agentSolventViscosity controlling
Cetearyl Isononanoate
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSkin conditioningEmollient
PEG-75
Binding agent, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Binding agentHumectantSolvent
Steareth-21
Sufactant, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B SufactantEmulsifyingSurfactant
Stearyl Glycyrrhetinate
Flavoring agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentSkin conditioningSoothing
Hydrogenated Lecithin
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Skin conditioningEmulsifyingSurfactantSuspending agent- nonsurfactant
Tocopheryl Linoleate
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AntioxidantSkin conditioningSkin protecting
Tromethamine
Fragrance, Ph adjuster
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A FragrancePh adjusterBuffering agentMasking
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion stabilising, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingFilm formingViscosity controlling
Carbomer
Emulsion stabilising, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingViscosity increasing agentGel formingViscosity controlling
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Tetrasodium EDTA
Chelating agent
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Chelating agent
Chlorhexidine Digluconate
Cosmetic biocide, Oral care agent
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR B Cosmetic biocideOral care agentPreservativeAntimicrobial
Biosaccharide Gum-1
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
+ 7 more — see the full ingredients list above
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
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
Isostearyl Neopentanoate
Binding agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Binding agentSkin conditioningEmollientBinding Bad for Sensitive SkinBad for Oily Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Methylparaben
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Polyperfluoromethylisopropyl Ether
Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 6 Skin conditioning
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily 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
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Ethylparaben
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Butylparaben
Fragrance, Preservative
Higher-hazard ingredient.Read moreShow less
EWG 7 CIR A FragrancePreservativeMasking Paraben
Aloe Barbadensis Leaf
Masking
Limited public safety data.Read moreShow less
EWG N/A CIR B Masking Good for Sensitive Skin
Propylparaben
Fragrance, Preservative
Higher-hazard ingredient.Read moreShow less
EWG 7 CIR A FragrancePreservativePerfuming Paraben
PEG-40 Hydrogenated Castor Oil
Fragrance, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceEmulsifyingSurfactantPerfuming Fungal-acne trigger

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 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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