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Medik8
C-Tetra Advanced Gel-Serum

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Paula's Choice
25% Vitamin C + Glutathione Clinical Serum

Product category and function

C-Tetra Advanced Gel-Serum

25% Vitamin C + Glutathione Clinical 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-Tetra Advanced Gel-Serum

25% Vitamin C + Glutathione Clinical Serum

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

Full ingredient list

C-Tetra Advanced Gel-Serum

25% Vitamin C + Glutathione Clinical Serum

No. of common ingredients = 0
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. 12	Aqua/water/eau, tetrahexyldecyl ascorbate, dimethicone, glycerin, c9-12 alkane, ascorbyl glucoside, silica, pyrus malus (apple) fruit extract, hydrogenated lecithin, polyglyceryl-6 polyricinoleate, acrylates/c10-30 alkyl acrylate crosspolymer, xanthan gum, oryza sativa (rice) bran extract, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, cetyl alcohol, caprylyl glycol, lysine carboxymethyl cysteinate, coco-caprylate/caprate, tocopherol, glutathione, sodium citrate, sodium phytate, hexylene glycol, ethylhexylglycerin, helianthus annuus (sunflower) seed extract, urea, mannitol, caprylic/capric triglyceride, sodium pca, rosmarinus officinalis (rosemary) leaf extract, polysorbate 60, sorbitan isostearate, trehalose, ascorbic acid, glucose, vanilla planifolia fruit extract, polyquaternium-51, ergothioneine, triacetin, sodium hyaluronate, phenoxyethanol

No. of common ingredients = 0

Total Number of ingredients = 31

Total Number of ingredients = 41

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.

Aqua/water/eau, tetrahexyldecyl ascorbate, dimethicone, glycerin, c9-12 alkane, ascorbyl glucoside, silica, pyrus malus (apple) fruit extract, hydrogenated lecithin, polyglyceryl-6 polyricinoleate, acrylates/c10-30 alkyl acrylate crosspolymer, xanthan gum, oryza sativa (rice) bran extract, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, cetyl alcohol, caprylyl glycol, lysine carboxymethyl cysteinate, coco-caprylate/caprate, tocopherol, glutathione, sodium citrate, sodium phytate, hexylene glycol, ethylhexylglycerin, helianthus annuus (sunflower) seed extract, urea, mannitol, caprylic/capric triglyceride, sodium pca, rosmarinus officinalis (rosemary) leaf extract, polysorbate 60, sorbitan isostearate, trehalose, ascorbic acid, glucose, vanilla planifolia fruit extract, polyquaternium-51, ergothioneine, triacetin, sodium hyaluronate, phenoxyethanol

Notable ingredients

C-Tetra Advanced Gel-Serum

25% Vitamin C + Glutathione Clinical Serum

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

Soothing: Rosmarinus officinalis (rosemary) leaf extract

Antioxidant: Ascorbic acid, Ascorbyl glucoside, Ergothioneine, Rosmarinus officinalis (rosemary) leaf extract, Tocopherol, Tetrahexyldecyl ascorbate, Vanilla planifolia fruit extract

Solvent: Aqua/water/eau, C9-12 alkane, Caprylic/capric triglyceride, Glycerin, Hexylene glycol, Triacetin

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Ingredients with their functions

C-Tetra Advanced Gel-Serum

25% Vitamin C + Glutathione Clinical Serum

Water

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.

Isododecane

Function: Skin conditioning, Solvent

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