Kate Somerville MEGA-C™ 30% Vitamin C Brightening Mask Versus Sunday Riley C.E.O. 15% Vitamin C Brightening Serum
Updated on May 29, 2025
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 2 ingredients in common
Cool Features
They both contain Vitamin C
Suited For
They're both likely to be good for fighting acne, 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 harsh alcohols, parabens or sulfates
What's Inside
They both contain common allergens, 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
Kate Somerville MEGA-C™ 30% Vitamin C Brightening Mask 25 ingredients
Sunday Riley C.E.O. 15% Vitamin C Brightening Serum 27 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Kate Somerville MEGA-C™ 30% Vitamin C Brightening Mask 25 ingredients
Sunday Riley C.E.O. 15% Vitamin C Brightening Serum 27 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Dimethicone
Emollient
Ascorbic Acid
Antioxidant
Polysilicone-11
PEG-10 Dimethicone
Skin Conditioning
Hippophae Rhamnoides Fruit Oil
Skin Protecting
Divinyldimethicone/Dimethicone/Phenylsilsesquioxane Crosspolymer
Carthamus Tinctorius Seed Oil
Masking
Brassica Campestris Seed Oil
Skin Conditioning
Bisabolol
Masking
Glycyrrhiza Glabra Root Extract
Bleaching
Citrus Aurantium Dulcis Peel Oil
Masking
Niacinamide
Smoothing
Mentha Viridis Leaf Oil
Astringent
Pogostemon Cablin Leaf Oil
Masking
Zingiber Officinale Root Extract
Masking
Ceramide NP
Skin Conditioning
Caprylic/Capric Triglyceride
Masking
Polyglyceryl-3 Diisostearate
Emulsifying
Ubiquinone
Antioxidant
Astragalus Membranaceus Root Extract
EmollientSpilanthes Acmella Flower/Leaf/Stem Extract
AntimicrobialAlthaea Officinalis Root Extract
Skin Conditioning
Oryza Sativa Bran Extract
Skin Conditioning
Rosmarinus Officinalis Leaf Extract
AntimicrobialLimonene
Perfuming
Dimethicone, Ascorbic Acid, Polysilicone-11, PEG-10 Dimethicone, Hippophae Rhamnoides Fruit Oil, Divinyldimethicone/Dimethicone/Phenylsilsesquioxane Crosspolymer, Carthamus Tinctorius Seed Oil, Brassica Campestris Seed Oil, Bisabolol, Glycyrrhiza Glabra Root Extract, Citrus Aurantium Dulcis Peel Oil, Niacinamide, Mentha Viridis Leaf Oil, Pogostemon Cablin Leaf Oil, Zingiber Officinale Root Extract, Ceramide NP, Caprylic/Capric Triglyceride, Polyglyceryl-3 Diisostearate, Ubiquinone, Astragalus Membranaceus Root Extract, Spilanthes Acmella Flower/Leaf/Stem Extract, Althaea Officinalis Root Extract, Oryza Sativa Bran Extract, Rosmarinus Officinalis Leaf Extract, Limonene
Water
Skin ConditioningTetrahexyldecyl Ascorbate
Antioxidant
Squalane
Emollient
Polyglyceryl-6 Distearate
Emulsifying
PEG-8 Beeswax
Emulsifying
PPG-12/Smdi Copolymer
EmollientGlycine Soja Sterols
Emollient
Sodium Phytate
Tocopherol
Antioxidant
Acetamidoethoxyethanol
Humectant
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingSodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingJojoba Esters
Emollient
Glycolic Acid
Buffering
Caprylyl Glycol
EmollientCetyl Alcohol
Emollient
Polyglyceryl-3 Beeswax
Emulsifying
Chlorphenesin
Antimicrobial
Glycerin
Humectant
Polysorbate 60
Emulsifying
Sorbitan Isostearate
Emulsifying
Saccharide Isomerate
Humectant
Citrus Aurantium Dulcis Peel Oil
Masking
Citrus Tangerina Peel Oil
Masking
Linalool
Perfuming
Limonene
Perfuming
Phenoxyethanol
Preservative
Water, Tetrahexyldecyl Ascorbate, Squalane, Polyglyceryl-6 Distearate, PEG-8 Beeswax, PPG-12/Smdi Copolymer, Glycine Soja Sterols, Sodium Phytate, Tocopherol, Acetamidoethoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Jojoba Esters, Glycolic Acid, Caprylyl Glycol, Cetyl Alcohol, Polyglyceryl-3 Beeswax, Chlorphenesin, Glycerin, Polysorbate 60, Sorbitan Isostearate, Saccharide Isomerate, Citrus Aurantium Dulcis Peel Oil, Citrus Tangerina Peel Oil, Linalool, Limonene, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Citrus Aurantium Dulcis Peel Oil is oil from the peel of an orange fruit.
Limonene and linalool make up the majority of oils from citrus peels. Limonene has a "citrus" fragrance. Citrus peels also contain flavonoids, which have anti-inflammatory properties.
Citrus peel is also a rich source of flavonoids. Flavonoids are natural antioxidants and help protect your skin against damage. Flavonoids are a group of compounds naturally found in vegetables and fruits.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about Citrus Aurantium Dulcis Peel OilLimonene is a fragrance that adds scent and taste to a formulation.
It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about LimoneneIngredient Ratings
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When to use
Kate Somerville MEGA-C™ 30% Vitamin C Brightening Mask 25 ingredients
Sunday Riley C.E.O. 15% Vitamin C Brightening Serum 27 ingredients
Reviews
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