Sunday Riley A+ High-Dose Retinol Serum Versus No7 Advanced Retinol 1.5% Complex Night Concentrate
Updated on April 15, 2025
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 8 ingredients in common
Cool Features
They both contain retinoid
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any common allergens, parabens or sulfates
What's Inside
They both contain silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
No7 Advanced Retinol 1.5% Complex Night Concentrate 27 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
No7 Advanced Retinol 1.5% Complex Night Concentrate 27 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPropanediol
Solvent
Dimethyl Isosorbide
SolventTriheptanoin
Skin ConditioningDimethicone
Emollient
Glycerin
Humectant
Pentylene Glycol
Skin ConditioningHexyldecanol
EmollientDisiloxane
Skin Conditioning
Cetyl PEG/PPG-10/1 Dimethicone
Emulsifying
Diheptyl Succinate
EmollientPropylene Carbonate
SolventHydroxypinacolone Retinoate
Skin Conditioning
PPG-24-Glycereth-24
EmulsifyingPhenyl Trimethicone
Skin Conditioning
Retinol
Skin Conditioning
Ubiquinone
Antioxidant
Honey Extract
Humectant
Sodium Hyaluronate Crosspolymer
Humectant
Algae Extract
Emollient
Zingiber Officinale Extract
Skin ConditioningOpuntia Ficus-Indica Fruit Extract
Skin ConditioningBisabolol
Masking
Butyrospermum Parkii Butter
Skin Conditioning
Phospholipids
Skin Conditioning
Saccharomyces Cerevisiae Extract
Skin ConditioningLecithin
Emollient
Sodium Acrylates Copolymer
Hydrogenated Polyisobutene
Emollient1,2-Hexanediol
Skin Conditioning
4-T-Butylcyclohexanol
Masking
Polyglyceryl-10 Stearate
Skin Conditioning
Caprylyl Glycol
EmollientHelianthus Annuus Seed Oil
Emollient
Sorbitol
Humectant
Cetylhydroxyproline Palmitamide
Skin ConditioningPolysilicone-11
Benzoic Acid
Masking
Dehydroacetic Acid
Preservative
Sodium Phytate
Glyceryl Polyacrylate
Polysorbate 80
Emulsifying
Hydroxyphenyl Propamidobenzoic Acid
Skin ConditioningStearic Acid
Cleansing
Brassica Campestris Sterols
Emollient
Pvp
Emulsion StabilisingCapryloyl Glycerin/Sebacic Acid Copolymer
Skin ConditioningSodium Benzoate
Masking
Alcohol
Antimicrobial
Potassium Phosphate
BufferingDecyl Glucoside
CleansingPhenoxyethanol
Preservative
Hexylene Glycol
EmulsifyingPotassium Sorbate
Preservative
Tocopherol
Antioxidant
Water, Propanediol, Dimethyl Isosorbide, Triheptanoin, Dimethicone, Glycerin, Pentylene Glycol, Hexyldecanol, Disiloxane, Cetyl PEG/PPG-10/1 Dimethicone, Diheptyl Succinate, Propylene Carbonate, Hydroxypinacolone Retinoate, PPG-24-Glycereth-24, Phenyl Trimethicone, Retinol, Ubiquinone, Honey Extract, Sodium Hyaluronate Crosspolymer, Algae Extract, Zingiber Officinale Extract, Opuntia Ficus-Indica Fruit Extract, Bisabolol, Butyrospermum Parkii Butter, Phospholipids, Saccharomyces Cerevisiae Extract, Lecithin, Sodium Acrylates Copolymer, Hydrogenated Polyisobutene, 1,2-Hexanediol, 4-T-Butylcyclohexanol, Polyglyceryl-10 Stearate, Caprylyl Glycol, Helianthus Annuus Seed Oil, Sorbitol, Cetylhydroxyproline Palmitamide, Polysilicone-11, Benzoic Acid, Dehydroacetic Acid, Sodium Phytate, Glyceryl Polyacrylate, Polysorbate 80, Hydroxyphenyl Propamidobenzoic Acid, Stearic Acid, Brassica Campestris Sterols, Pvp, Capryloyl Glycerin/Sebacic Acid Copolymer, Sodium Benzoate, Alcohol, Potassium Phosphate, Decyl Glucoside, Phenoxyethanol, Hexylene Glycol, Potassium Sorbate, Tocopherol
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Dimethicone
Emollient
Caprylic/Capric Triglyceride
Masking
C12-15 Alkyl Benzoate
AntimicrobialPhenoxyethanol
Preservative
Polysorbate 20
Emulsifying
Xanthan Gum
EmulsifyingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingDimethiconol
Emollient
Retinol
Skin Conditioning
Bisabolol
Masking
Inulin Lauryl Carbamate
Emulsion StabilisingCaprylyl Glycol
EmollientSorbitan Laurate
Emulsifying
Potassium Hydroxide
BufferingEthylhexylglycerin
Skin ConditioningCarbomer
Emulsion StabilisingTetrasodium EDTA
Behentrimonium Chloride
Preservative
Sucrose Laurate
Emollient
Hydroxyethylcellulose
Emulsion StabilisingAcetyl Dipeptide-1 Cetyl Ester
Skin Conditioning
Benzoic Acid
Masking
Palmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Water, Glycerin, Butylene Glycol, Dimethicone, Caprylic/Capric Triglyceride, C12-15 Alkyl Benzoate, Phenoxyethanol, Polysorbate 20, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Dimethiconol, Retinol, Bisabolol, Inulin Lauryl Carbamate, Caprylyl Glycol, Sorbitan Laurate, Potassium Hydroxide, Ethylhexylglycerin, Carbomer, Tetrasodium EDTA, Behentrimonium Chloride, Sucrose Laurate, Hydroxyethylcellulose, Acetyl Dipeptide-1 Cetyl Ester, Benzoic Acid, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterDimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinRetinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.
Why is retinol famous?
It has the most scientific studies backing up its skin benefits out of all the non-prescription ingredients.
Retinol is proven to:
This is why retinol is effective at removing wrinkles, fading dark spots, treating acne, and reducing the appearance of pores.
Studies show retinol is less effective when exposed to UV. Be sure to look for appropriate packaging to keep your retinol potent (similar to Vitamin C).
Using retinol or any retinoids will increase sun-sensitivity in the first few months. Though studies show retinoids increase your skin's natural SPF with continuous use, it is best to always wear sunscreen and sun-protection.
We recommend speaking with a medical professional about using this ingredient during pregnancy.
Retinol may cause irritation in some people, so be sure to patch test. Experts recommend 'ramping up' retinol use: start using this ingredient once a week and work up to using it daily.
Read about Tretinoin
Learn more about RetinolBisabolol is famous for its skin soothing properties. It does this by blocking inflammatory signals, helping to reduce your body's reaction to irritation.
This ingredient also interferes with the process of hyperpigmentation. This can help with reducing dark spots and uneven tone.
Bisabolol is an antioxidant. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells. By fighting these free-radicals, Bisabolol may slow down signs of aging.
Studies have shown Bisabolol to have antimicrobial properties and may be a fungicide. These properties help preserve a product's shelf life.
All these properties makes bisabolol a great skin barrier helper ingredient.
Bisabolol also helps the absorption of other ingredients.
Note: Synthetic Bisabolol has been shown to be less effective.
Learn more about BisabololCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolBenzoic Acid is used to preserve and adjust the pH of products.
The antimicrobial property of Benzoic Acid helps elongate a product's shelf life. Its main role is to reduce fungi growth and is not found to be effective at fighting bacteria. Therefore Benzoic Acid is always added along with other preservatives.
In its pure form, Benzoic Acid looks like a white crystalline solid. It has slight solubility in water.
The name of Benzoic Acid comes from gum benzoin, which used to be the sole source of deriving this ingredient. Benzoic Acid is the most simple aromatic carboxylic acid.
Benzoic Acid is naturally occuring in strawberries, mustard, cinnamon, and cloves. It has a slight scent but is not considered to be a fragrance.
Learn more about Benzoic AcidPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
No7 Advanced Retinol 1.5% Complex Night Concentrate 27 ingredients
Reviews
Here's what our community thinks
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
Definitely high-dose retinol!
This is a powerful retinol serum that is no joke. I tried easing into it by going every other night, then moved to every night. I ended up with signs of a damaged skin barrier (redness) on my chin. I'm going to lay off this on my chin for a couple weeks, then try again, but stick to every other night. I like that I'm getting a strong dose of an excellent skincare Show more
No7 Advanced Retinol 1.5% Complex Night Concentrate 27 ingredients
Effective non-prescription retinol
The texture is sort of like a hybrid serum/lotion that sinks into my skin and leaves it feeling soft and smooth. Do not let this product fool you, it is about as strong as you can get OTC and should be used with caution. I have been using retinol products for years (non-prescription strength) and this is by and far my favourite, the one I continue to use Show more
