Olay Regenerist Retinol 24 Night Facial Serum Versus No7 Advanced Retinol 1.5% Complex Night Concentrate
Updated on April 15, 2025
Overview
What they are
These products are both serums. They have a total of 6 ingredients in common
Cool Features
They both contain peptides and 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 harsh alcohols, common allergens, fragrances, oils, 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
Olay Regenerist Retinol 24 Night Facial Serum 19 ingredients
No7 Advanced Retinol 1.5% Complex Night Concentrate 27 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Olay Regenerist Retinol 24 Night Facial Serum 19 ingredients
No7 Advanced Retinol 1.5% Complex Night Concentrate 27 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDimethicone
Emollient
Glycerin
Humectant
Retinol
Skin Conditioning
Retinyl Propionate
Skin Conditioning
Niacinamide
Smoothing
Palmitoyl Pentapeptide-4
Skin Conditioning
Dimethiconol
Emollient
C13-14 Isoparaffin
Emollient
Laureth-4
Emulsifying
Polysorbate 20
Emulsifying
Laureth-7
EmulsifyingDisodium EDTA
Dimethicone Crosspolymer
Emulsion StabilisingPolyacrylamide
Titanium Dioxide
Cosmetic Colorant
Mica
Cosmetic Colorant
DMDM Hydantoin
Preservative
Iodopropynyl Butylcarbamate
Preservative
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Dimethicone
Emollient
Caprylic/Capric Triglyceride
MaskingC12-15 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 RetinolDimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.
This ingredient helps to create a silky texture and improve spreadability. Due to its high molecular weight and thickness, it is often combined with cyclopentasiloxane.
Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
As a surfactant, it helps collect dirt and oils for washing. Emulsifiers prevent oils and water from separating.
Polysorbate 20 also adds scent to a product. Since it is made using sorbitol, it has a sweet scent. Sorbitol can also be found in fruits such as apples and peaches.
The lauric acid used to create Polysorbate 20 is often derived from coconuts.
Polysorbate 20 may not be fungal acne safe.
Learn more about Polysorbate 20Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Olay Regenerist Retinol 24 Night Facial Serum 19 ingredients
No7 Advanced Retinol 1.5% Complex Night Concentrate 27 ingredients
Reviews
Here's what our community thinks
Olay Regenerist Retinol 24 Night Facial Serum 19 ingredients
This serum has some good qualities, but also a few drawbacks.
On the positive side, it feels like a well-formulated product with gentle retinoids - the combination of retinol and retinyl propionate works well for beginners or those with sensitive skin, as it doesn’t cause major irritation. The addition of niacinamide and peptides is also a nice touch for brightening and anti-aging benefits. 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
