A+ High-Dose Retinol Serum

Sunday Riley

Where to buy Possibly in stock

About this product

The Sunday Riley A+ High-Dose Retinol Serum is a serums, essence, ampoule. Our analysis of its 55 ingredients (46 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
55
Low-risk
46
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 11/12
Good for dry skin
Algae Extract Honey Extract Diheptyl Succinate Sodium Hyaluronate Crosspolymer Sorbitol Caprylyl Glycol Glycerin Hydrogenated Polyisobutene Hexyldecanol Dimethicone Lecithin
Caution for dry skin
Decyl Glucoside Stearic Acid Glycerin Triheptanoin Polyglyceryl-10 Stearate PVP PPG-24-Glycereth-24 Hexylene Glycol Alcohol Cetyl PEG/PPG-10/1 Dimethicone Polysorbate 80 Lecithin
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Alcohol Retinol
Sensitive Skin 4/12
Good for sensitive skin
Ubiquinone Capryloyl Glycerin/Sebacic Acid Copolymer Glycerin Dimethicone
Caution for sensitive skin
Algae Extract Sorbitol Stearic Acid Glycerin Hexylene Glycol 4-t-Butylcyclohexanol Alcohol Benzoic Acid Sodium Benzoate Potassium Sorbate Phenoxyethanol Retinol

Ingredients list

55 total
Lower hazard (1) Higher hazard (9)
All55 Skin Conditioning42 Fragrance12 Solvent11 Film Forming9 Humectant9 Viscosity Controlling9 Surfactant8 Emollient7
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Triheptanoin
(Viscosity Increasing Agent, Skin Conditioning, Surfactant, Viscosity Controlling)
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
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
Hexyldecanol
(Skin Conditioning, Emollient, Humectant, Solvent)
2
Disiloxane
(Antifoaming Agent, Skin Conditioning)
3
A
Cetyl PEG/PPG-10/1 Dimethicone
(Emulsifying, Skin Conditioning, Surfactant)
1
Diheptyl Succinate
(Emollient, Skin Conditioning)
1
A
Propylene Carbonate
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
Hydroxypinacolone Retinoate
(Skin Conditioning)
1
PPG-24-Glycereth-24
(Solvent, Emulsifying, Surfactant)
1
A
Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning)
Silicone
Silicone
9
A
Retinol
(Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Ubiquinone
(Antioxidant, Skin Conditioning)
1
Honey Extract
(Humectant, Skin Conditioning, Moisturising)
1
Sodium Hyaluronate Crosspolymer
(Humectant, Skin Conditioning)
1
Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient)
Zingiber Officinale Extract
(Skin Conditioning)
1
Opuntia Ficus-Indica Fruit Extract
(Skin Conditioning)
Bisabolol
(Fragrance, Skin Conditioning, Soothing)
Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling)
1
A
Phospholipids
(Skin Conditioning)
1
Saccharomyces Cerevisiae Extract
(Skin Conditioning)
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
3
B
Sodium Acrylates Copolymer
(Binding Agent, Film Forming, Viscosity Increasing Agent, Binding, Opacifying, Viscosity Controlling)
1
A
Hydrogenated Polyisobutene
(Skin Conditioning, Emollient, Viscosity Increasing Agent, Viscosity Controlling)
1
A
1,2-Hexanediol
(Solvent)
1
4-t-Butylcyclohexanol
(Masking, Perfuming)
1
B
Polyglyceryl-10 Stearate
(Skin Conditioning, Emulsifying, Surfactant)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
Helianthus Annuus Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Emollient)
1
Sorbitol
(Flavoring Agent, Fragrance, Humectant, Plasticizer, Skin Conditioning)
1
Cetylhydroxyproline Palmitamide
(Skin Conditioning)
1
Polysilicone-11
(Film Forming)
3
A
Benzoic Acid
(Fragrance, Ph Adjuster, Preservative, Bulking Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Dehydroacetic Acid
(Preservative)
1
Sodium Phytate
(Chelating Agent, Oral Care Agent)
3
A
Glyceryl Polyacrylate
(Film Forming)
3
B
Polysorbate 80
(Denaturant, Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Hydroxyphenyl Propamidobenzoic Acid
(Skin Conditioning)
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
Brassica Campestris Sterols
(Skin Conditioning, Skin Conditioning Emollient)
1
A
PVP
(Binding Agent, Emulsion Stabilising, Film Forming, Hair Fixing, Suspending Agent Nonsurfactant, Antistatic Agent, Binding, Viscosity Controlling)
1
Capryloyl Glycerin/Sebacic Acid Copolymer
(Film Forming, Hair Conditioning, Skin Conditioning, Skin Protecting)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
2
Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
B
Potassium Phosphate
(Ph Adjuster, Buffering Agent)
1
B
Decyl Glucoside
(Cleansing, Emulsion Stabilising, Surfactant)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
3
A
Potassium Sorbate
(Fragrance, Preservative)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)

My Ingredient Notes

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Key ingredients

Triheptanoin
Skin Conditioning
Dimethicone
Skin Protecting, Emollient
Glycerin
Humectant, Skin Protecting
Pentylene Glycol
Skin Conditioning
Hexyldecanol
Skin Conditioning, Emollient
Disiloxane
Skin Conditioning

Benefits

Good for oily/acne-prone skin

Concerns

Contains paraben
Contains silicone
Not fungal acne (malassezia) safe
Retinol — higher EWG
May not suit dry skin
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
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Dimethyl Isosorbide
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Triheptanoin
Viscosity increasing agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Viscosity increasing agentSkin conditioningSurfactantViscosity controlling
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Hexyldecanol
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningEmollientHumectantSolvent
Disiloxane
Antifoaming agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 2 Antifoaming agentSkin conditioning
Cetyl PEG/PPG-10/1 Dimethicone
Emulsifying, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A EmulsifyingSkin conditioningSurfactant
Diheptyl Succinate
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientSkin conditioning
Propylene Carbonate
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A SolventViscosity decreasing agentViscosity controlling
Hydroxypinacolone Retinoate
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
PPG-24-Glycereth-24
Solvent, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 SolventEmulsifyingSurfactant
Ubiquinone
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning
Honey Extract
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioningMoisturising
Sodium Hyaluronate Crosspolymer
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioning
+ 31 more — see the full ingredients list above
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
Phenyl Trimethicone
Antifoaming agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentHair conditioningSkin conditioning Silicone
Retinol
Skin conditioning
Potentially a skin irritantRead moreShow less
EWG 9 CIR A Skin conditioning Bad for Sensitive Skin
Benzoic Acid
Fragrance, Ph adjuster
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePh adjusterPreservativeBulking agentMasking Bad for Sensitive Skin
Polysorbate 80
Denaturant, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantEmulsifyingSurfactant 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
Alcohol
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 2 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad 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) (Hydroxypinacolone Retinoate, 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.

Hydroxypinacolone Retinoate, Retinol

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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