Mega-A Skin Transforming Serum

Kate Somerville

Where to buy Possibly in stock

About this product

The Kate Somerville Mega-A Skin Transforming Serum is a serums, essence, ampoule. Our analysis of its 37 ingredients (33 low-risk) rates it Excellent (98/100). 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
37
Low-risk
33
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 9/6
Good for dry skin
Glyceryl Stearate Rosa Moschata Seed Oil Cetearyl Alcohol Squalane Caprylic/Capric Triglyceride Propylene Glycol Hydrogenated Ethylhexyl Olivate Hydrogenated Olive Oil Unsaponifiables Dimethicone
Caution for dry skin
Sodium Lauroyl Glutamate Sorbitan Isostearate Stearic Acid Xanthan Gum Potassium Cetyl Phosphate PEG-7 Trimethylolpropane Coconut Ether
Oily/Acne-Prone Skin No data
Sensitive Skin 1/5
Good for sensitive skin
Dimethicone
Caution for sensitive skin
Stearic Acid Caprylic/Capric Triglyceride Propylene Glycol Citric Acid Phenoxyethanol

Ingredients list

37 total
Lower hazard (1) Higher hazard (6)
All37 Skin Conditioning27 Emollient8 Viscosity Controlling8 Emulsion Stabilising7 Emulsifying6 Fragrance5 Hair Conditioning5 Solvent5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
B
Hydrogenated Ethylhexyl Olivate
(Emollient, Skin Conditioning)
1
Rosa Moschata Seed Oil
(Emollient, Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
1
A
Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning)
Good for Dry Skin
Good for Dry Skin
1
B
Potassium Cetyl Phosphate
(Emulsifying, Surfactant)
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
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
1
A
Hydrogenated Olive Oil Unsaponifiables
(Hair Conditioning, Skin Conditioning, Emollient)
1
Saccharomyces Ferment
(Skin Conditioning)
1
Hydroxyapatite
(Abrasive, Bulking Agent, Oral Care Agent, Emulsion Stabilising)
5
6
Retinal
(Skin Conditioning)
1
Mauritia Flexuosa Fruit Oil
(Skin Conditioning)
Fungal Acne
Fungal Acne Trigger
1
Adenosine
(Skin Conditioning)
1
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
Hydrolyzed Sodium Hyaluronate
(Skin Conditioning)
1
Crithmum Maritimum Extract
(Skin Conditioning, Tonic)
1
B
Sodium Lauroyl Glutamate
(Antistatic Agent, Hair Conditioning, Surfactant)
1
A
Glyceryl Stearate
(Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
1
A
Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
Trisodium Ethylenediamine Disuccinate
(Chelating Agent)
1
Polysilicone-11
(Film Forming)
1
Polyglutamic Acid
(Skin Conditioning)
1
A
Polyisobutene
(Binding Agent, Film Forming, Viscosity Increasing Agent, Binding, Viscosity Controlling)
1
B
Lauroyl Lysine
(Hair Conditioning, Skin Conditioning, Viscosity Controlling)
1
PEG-7 Trimethylolpropane Coconut Ether
(Emulsifying, Surfactant)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Synthetic Fluorphlogopite
(Bulking Agent, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Sorbitan Isostearate
(Emulsifying, Surfactant)
1
A
1,2-Hexanediol
(Solvent)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben

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

Retinoid
Visibly reduces the signs of aging.
Vitamin E
Protects skin and soothes irritation.
Antioxidants
Shields skin from free radical damage.
Exfoliators
Removes dead skin cells to smoothe texture.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
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.
Good For Oily SkinBalances oil and helps reduce shine.
Reduces IrritationEases discomfort and supports skin resilience.
Redness ReducingSoothes visible redness and calms irritation.
BrighteningRestores radiance to dull, tired skin.

Concerns

Contains paraben
Contains silicone
Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Squalane
Emollient, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientHair conditioningRefattingSkin conditioning
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Hydrogenated Ethylhexyl Olivate
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmollientSkin conditioning
Potassium Cetyl Phosphate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmulsifyingSurfactant
Hydrogenated Olive Oil Unsaponifiables
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollient
Saccharomyces Ferment
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Hydroxyapatite
Abrasive, Bulking agent
Low-hazard ingredient.Read moreShow less
EWG 1 AbrasiveBulking agentOral care agentEmulsion stabilising
Adenosine
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion stabilising, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingViscosity controlling
Hydrolyzed Sodium Hyaluronate
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Crithmum Maritimum Extract
Skin conditioning, Tonic
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningTonic
Sodium Lauroyl Glutamate
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentHair conditioningSurfactant
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
+ 12 more — see the full ingredients list above
Rosa Moschata Seed Oil
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientSkin conditioning Fungal-acne trigger
Panthenol
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioningSkin conditioning Good for Dry 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
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Retinal
Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 5–6 Skin conditioning
Mauritia Flexuosa Fruit Oil
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning Fungal-acne trigger
Glyceryl Stearate
Emollient, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientEmulsifying Fungal-acne trigger
Stearic Acid
Fragrance, Sufactant
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceSufactantEmulsifyingSurfactantsurfactant-cleansing agent is included as a function for the soap form of stearic acid.Emulsion stabilisingMaskingRefatting Bad for Oily 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
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben

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) (Retinal)

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.

Retinal

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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