Versus

SkinBetter Science AlphaRet Clearing Serum Versus Sunday Riley A+ High-Dose Retinol Serum

Serum
Serum
American Brand United States
American Brand United States

Overview

What they are

These products are both reef safe serums. They have a total of 9 ingredients in common

Cool Features

They both contain hyaluronic acid, retinoid and Vitamin E

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

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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
AlphaRet Clearing Serum
A+ High-Dose Retinol Serum

Water

Skin Conditioning

Propanediol

Solvent

Dimethyl Isosorbide

Solvent

Triheptanoin

Skin Conditioning

Dimethicone

Emollient
1 / 0 Silicon Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Pentylene Glycol

Skin Conditioning

Hexyldecanol

Emollient

Disiloxane

Skin Conditioning
Silicon Icon

Cetyl PEG/PPG-10/1 Dimethicone

Emulsifying
Silicon Icon

Diheptyl Succinate

Emollient

Propylene Carbonate

Solvent

Hydroxypinacolone Retinoate

Skin Conditioning
Retinoid IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

PPG-24-Glycereth-24

Emulsifying

Phenyl Trimethicone

Skin Conditioning
Silicon Icon

Retinol

Skin Conditioning
Retinoid IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin IconMay worsen Rosacea Icon

Ubiquinone

Antioxidant
Antioxidant IconHelps with Anti-Aging IconGood for Dark Spots Icon

Honey Extract

Humectant
Helps hydrate Dry Skin Icon

Sodium Hyaluronate Crosspolymer

Humectant
Hyaluronic Acid Icon

Algae Extract

Emollient
May worsen Oily Skin Icon

Zingiber Officinale Extract

Skin Conditioning

Opuntia Ficus-Indica Fruit Extract

Skin Conditioning

Bisabolol

Masking
Helps reduce irritation Icon

Butyrospermum Parkii Butter

Skin Conditioning
Helps hydrate Dry Skin IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Phospholipids

Skin Conditioning

Saccharomyces Cerevisiae Extract

Skin Conditioning

Lecithin

Emollient

Sodium Acrylates Copolymer

Hydrogenated Polyisobutene

Emollient
1 / 2

1,2-Hexanediol

Skin Conditioning

4-T-Butylcyclohexanol

Masking
Fragrance Icon

Polyglyceryl-10 Stearate

Skin Conditioning
Not safe for Fungal Acne Icon

Caprylyl Glycol

Emollient

Helianthus Annuus Seed Oil

Emollient
0 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Sorbitol

Humectant
0 / 0 Helps hydrate Dry Skin Icon

Cetylhydroxyproline Palmitamide

Skin Conditioning

Polysilicone-11

Benzoic Acid

Masking
Preservative IconMay worsen Eczema Icon

Dehydroacetic Acid

Preservative
Preservative Icon

Sodium Phytate

Glyceryl Polyacrylate

Polysorbate 80

Emulsifying
0 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Hydroxyphenyl Propamidobenzoic Acid

Skin Conditioning

Stearic Acid

Cleansing
2-3 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Brassica Campestris Sterols

Emollient
Not safe for Fungal Acne Icon

Pvp

Emulsion Stabilising
0 / 0

Capryloyl Glycerin/Sebacic Acid Copolymer

Skin Conditioning

Sodium Benzoate

Masking
Preservative Icon

Alcohol

Antimicrobial
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Potassium Phosphate

Buffering

Decyl Glucoside

Cleansing

Phenoxyethanol

Preservative
Preservative Icon

Hexylene Glycol

Emulsifying
0-2 / 0-1

Potassium Sorbate

Preservative
Preservative Icon

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent

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 Water
Skin Conditioning, Solvent

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.

This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.

Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.

Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.

Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.

Learn more about Pentylene Glycol
Humectant, Skin Conditioning, Skin Protecting

Glycerin 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 Glycerin

Dimethyl Isosorbide is a solvent and helps deliver actives into your skin. It is created from sorbitol.

As a solvent, dimethyl isosorbide helps dissolve other ingredients. This helps ensure even distribution of an ingredient. It may also be used to decrease the thickness of a product.

Studies show dimethyl isosorbide is able to penetrate skin to deliver other ingredients into the skin, making them more effective.

Learn more about Dimethyl Isosorbide
Masking, Skin Conditioning, Soothing

Bisabolol 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 Bisabolol
Humectant, Skin Conditioning

This ingredient comes from honey made by bees. It is hydrating, antibacterial, anti-aging, and skin soothing.

Honey also contains amino acids, peptides, Vitamins A, C, and E.

The humectant property of honey draws moisture from the air to your skin. This makes it great at helping to hydrate the skin.

Honey may help reduce the signs of aging due to its antioxidant properties. Fun fact: darker honey has more antioxidants than light honey. The antibacterial property of honey may make it effective at helping to treat acne by killing acne-causing bacteria.

Many people wonder if honey extract is vegan. It is technically a byproduct from bees. This is because honey is created from the digestive enzymes in a bee's stomach.

Remember to be kind to bees :) They are important for many ecosystems and are endangered.

Learn more about Honey Extract
Emollient, Emulsifying, Skin Conditioning

Lecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of mixture of phospholipids.

This ingredient has emollient and emulsifying properties.

As an emollient, lecithen helps soften the skin and creates a barrier to keep moisture in.

As an emulsifier, it also helps prevent water and oil ingredients from separating. Lecithin can also help ingredients be better absorbed by the skin.

This is because the phospholipids in lecithin produce liposomes. Liposomes help other ingredients get through the skin barrier.

Depending on the source of this ingredient, lecithin may not be fungal acne safe. This is because some sources of lecithin come from soybean oil, which may feed the malassezia yeast that feeds fungal acne.

We recommend reaching out to the brand you are purchasing from to inquire about the source of their lecithin.

Learn more about Lecithin
Preservative

Phenoxyethanol 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.

Masking, Preservative

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

Learn more about Sodium Benzoate

When to use

52 Routines
6% use in am
94% use in pm
75% use every day
When to use See routines that use it ->
158 Routines
4% use in am
95% use in pm
69% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

SkinBetter Science AlphaRet Clearing Serum 42 ingredients

AlphaRet Clearing Serum hasn't been rated yet.
Rate it now

Sunday Riley A+ High-Dose Retinol Serum 55 ingredients

5.0 /5
from 1 rating
reneelovesherskin's avatar

reneelovesherskin

2 years ago
Review

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