Kate Somerville Quench Hydrating Face Serum

Kate Somerville

Where to buy Possibly in stock

About this product

The Kate Somerville Quench Hydrating Face Serum is a serums, essence, ampoule. Our analysis of its 16 ingredients (15 low-risk) rates it Excellent (94/100). 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
Serums, Essence, Ampoules
Ingredients
16
Low-risk
15
Fragrance
Fragrance-free
Origin
United States

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 10/1
Good for dry skin
Dimethiconol Ethylhexyl Stearate Ethylhexyl Cocoate Caprylic/Capric Triglyceride Caprylyl Glycol Sodium Hyaluronate Cyclomethicone Dimethicone Cyclopentasiloxane Lecithin
Caution for dry skin
Lecithin
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Retinol
Sensitive Skin 2/2
Good for sensitive skin
Sodium Ascorbate Dimethicone
Caution for sensitive skin
Caprylic/Capric Triglyceride Retinol

Ingredients list

16 total
Lower hazard (1) Higher hazard (9)
All16 Skin Conditioning17 Emollient9 Hair Conditioning4 Solvent4 Antifoaming Agent3 Humectant3 Skin Protecting2 Antistatic Agent2
EWG CIR Ingredient Name & Cosmetic Functions Notes
3
A
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent)
Silicone
Silicone
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
A
Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising)
Silicone
Silicone
1
B
Ethylhexyl Stearate
(Skin Conditioning, Emollient)
2
A
Cyclomethicone
(Antistatic Agent, Emollient, Hair Conditioning, Humectant, Solvent, Viscosity Controlling)
Silicone
Silicone
1
A
Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning)
Silicone
Silicone
1
B
Ethylhexyl Cocoate
(Skin Conditioning, Emollient)
Fungal Acne
Fungal Acne Trigger
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
Water
(Solvent)
9
A
Retinol
(Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Sodium Ascorbate
(Antioxidant)
1
Tocopherol (Vitamin E) Good for Dry Skin
Good for Dry Skin
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
Glycolipids
(Skin Conditioning)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)

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

Cyclopentasiloxane
Skin Conditioning, Emollient
Dimethicone
Skin Protecting, Emollient
Dimethiconol
Skin Conditioning, Emollient
Ethylhexyl Stearate
Skin Conditioning, Emollient
Cyclomethicone
Emollient, Humectant
Phenyl Trimethicone
Skin Conditioning

Benefits

Good for dry skin
Good for oily/acne-prone skin

Concerns

Contains silicone
Not fungal acne (malassezia) safe
Retinol — higher EWG

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

Ethylhexyl Stearate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollient
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Sodium Ascorbate
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antioxidant
Lecithin
Skin conditioning, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Skin conditioningEmulsifyingSurfactantAntistatic agentEmollient
Glycolipids
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Cyclopentasiloxane
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioningEmollientSolvent Silicone
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Dimethiconol
Antifoaming agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentSkin conditioningEmollientMoisturising Silicone
Cyclomethicone
Antistatic agent, Emollient
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Antistatic agentEmollientHair conditioningHumectantSolventViscosity controlling Silicone
Phenyl Trimethicone
Antifoaming agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentHair conditioningSkin conditioning Silicone
Ethylhexyl Cocoate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollient Fungal-acne trigger
Retinol
Skin conditioning
Potentially a skin irritantRead moreShow less
EWG 9 CIR A Skin conditioning Bad for Sensitive Skin
Tocopherol (Vitamin E)
Other
Low-hazard ingredient.Read moreShow less
EWG 1 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

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Evening: Use at night — start 2–3× a week and build up as your skin tolerates it.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

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

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Often avoided
Retinoids (Vitamin A) (Retinol)

Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

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

Retinoids (Vitamin A) 0.01–1%

Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.

Retinol

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 Ascorbate

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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