Versus

Sunday Riley A+ High-Dose Retinol Serum Versus Ultraceuticals Ultra C Firming Serum

Serum
Serum
American Brand United States
Australian Brand Australia

Updated on October 17, 2024

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 5 ingredients in common

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

They both do not contain any parabens or sulfates

What's Inside

They both contain harsh alcohols, fragrances and oils

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
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
Ultra C Firming Serum

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
Solvent

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. 

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol

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
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
Emollient, Humectant, Skin Conditioning

Caprylyl 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 Glycol

When to use

158 Routines
4% use in am
96% use in pm
69% use every day
When to use See routines that use it ->
3 Routines
100% use in am
0% use in pm
100% use every day

Reviews

Here's what our community thinks

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

Ultraceuticals Ultra C Firming Serum 40 ingredients

Ultra C Firming Serum hasn't been rated yet.
Rate it now