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Sunday Riley
C.E.O. 15% Vitamin C Brightening Serum

Versus

Medik8
C-Tetra Advanced Gel-Serum

Product category and function

C.E.O. 15% Vitamin C Brightening Serum

C-Tetra Advanced Gel-Serum

Serums/Treatments	Serums/Treatments
Concentrated formulas for hydrating and addressing skin issues.	Concentrated formulas for hydrating and addressing skin issues.
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Ingredient highlights

C.E.O. 15% Vitamin C Brightening Serum

C-Tetra Advanced Gel-Serum

Ingredient info	Ingredient info
Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free cruelty-free	Alcohol-free Paraben-free SLS-free Mica-free Fragrance-free

Full ingredient list

C.E.O. 15% Vitamin C Brightening Serum

C-Tetra Advanced Gel-Serum

No. of common ingredients = 0
Water(eau)(aqua), tetrahexyldecyl ascorbate, squalane, polyglyceryl-6 distearate, peg-8 beeswax, ppg-12/smdi copolymer, glycine soja (soybean) 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 (orange) peel oil, citrus tangerina (tangerine) peel oil, linalool, limonene, phenoxyethanol 11	Water, tetrahexyldecyl ascorbate, isododecane, propanediol, acetyl glucosamine, squalane, tocopherol, acetyl zingerone, camellia sinensis (green tea) leaf vesicles, hydroxyacetophenone, sodium hyaluronate, cellulose, avena sativa (oat) kernel extract, glycerin, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, citrus grandis (grapefruit) peel oil, sucrose stearate, tetrasodium glutamate diacetate, ethylhexylglycerin, acrylates/c10-30 alkyl acrylate crosspolymer, xanthan gum, sodium benzoate, cellulose gum, 1,2-hexanediol, polysorbate 60, sorbitan isostearate, citric acid, phenoxyethanol, citral, linalool, limonene.

No. of common ingredients = 0

Total Number of ingredients = 27

Total Number of ingredients = 31

Water(eau)(aqua), tetrahexyldecyl ascorbate, squalane, polyglyceryl-6 distearate, peg-8 beeswax, ppg-12/smdi copolymer, glycine soja (soybean) 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 (orange) peel oil, citrus tangerina (tangerine) peel oil, linalool, limonene, phenoxyethanol

Water, tetrahexyldecyl ascorbate, isododecane, propanediol, acetyl glucosamine, squalane, tocopherol, acetyl zingerone, camellia sinensis (green tea) leaf vesicles, hydroxyacetophenone, sodium hyaluronate, cellulose, avena sativa (oat) kernel extract, glycerin, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, citrus grandis (grapefruit) peel oil, sucrose stearate, tetrasodium glutamate diacetate, ethylhexylglycerin, acrylates/c10-30 alkyl acrylate crosspolymer, xanthan gum, sodium benzoate, cellulose gum, 1,2-hexanediol, polysorbate 60, sorbitan isostearate, citric acid, phenoxyethanol, citral, linalool, limonene.

Notable ingredients

C.E.O. 15% Vitamin C Brightening Serum

C-Tetra Advanced Gel-Serum

Soothing: Jojoba esters

Antioxidant: Tocopherol, Tetrahexyldecyl ascorbate

Exfoliant: Glycolic acid

Skin brightening: Acetyl glucosamine

Antioxidant: Acetyl zingerone, Avena sativa (oat) kernel extract, Hydroxyacetophenone, Tocopherol, Tetrahexyldecyl ascorbate

Solvent: Water, 1,2-hexanediol, Glycerin, Limonene, Propanediol, Isododecane

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Ingredients with their functions

C.E.O. 15% Vitamin C Brightening Serum

C-Tetra Advanced Gel-Serum

Water(eau)(aqua)

Also-called: Aqua, Aqua/Water, Water/Aqua/Eau, Aqua/Water/Eau | Function: Skin conditioning, Solvent

Water serves as a fundamental component in skincare products, often listed as the first ingredient, which means it's the most abundant. It acts as a solvent, helping to dissolve other ingredients and facilitate the application and absorption of products.

Tetrahexyldecyl ascorbate

Function: Skin conditioning, Antioxidant

We don’t have a detailed description of this ingredient yet.

Squalane

Function: Emollient/Moisturizer, Skin conditioning

We don’t have a detailed description of this ingredient yet.