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Tatcha
The Brightening Serum

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Medik8
C-Tetra Advanced Gel-Serum

Product category and function

The 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

The 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

The Brightening Serum

C-Tetra Advanced Gel-Serum

No. of common ingredients = 0
Aqua/water/eau, saccharomyces/rice ferment filtrate, glycerin, propanediol, butylene glycol, ascorbyl glucoside, honey extract (extrait de miel), camellia sinensis leaf extract, cladosiphon okamuranus extract, ferulic acid, angelica acutiloba root extract, prunus mume fruit extract, sodium hyaluronate, glycyrrhiza glabra (licorice) root extract, callicarpa japonica fruit extract, ziziphus jujuba fruit extract, artemisia capillaris flower extract, scutellaria baicalensis root extract, morus alba root extract, ppg-13-decyltetradeceth-24, lysine carboxymethyl cysteinate, dipotassium glycyrrhizate, xanthan gum, 1,2-hexanediol, polyglyceryl-10 diisostearate, citric acid, polyglyceryl-10 laurate, sodium citrate, isostearic acid, parfum/fragrance, ethylhexylglycerin, potassium hydroxide, chlorphenesin, phenoxyethanol, citral, citrus aurantium bergamia peel oil, citrus limon peel oil, eucalyptus globulus oil, juniperus virginiana oil, lavandula oil/extract, limonene, linalool, linalyl acetate, pinene 12	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 = 44

Total Number of ingredients = 31

Aqua/water/eau, saccharomyces/rice ferment filtrate, glycerin, propanediol, butylene glycol, ascorbyl glucoside, honey extract (extrait de miel), camellia sinensis leaf extract, cladosiphon okamuranus extract, ferulic acid, angelica acutiloba root extract, prunus mume fruit extract, sodium hyaluronate, glycyrrhiza glabra (licorice) root extract, callicarpa japonica fruit extract, ziziphus jujuba fruit extract, artemisia capillaris flower extract, scutellaria baicalensis root extract, morus alba root extract, ppg-13-decyltetradeceth-24, lysine carboxymethyl cysteinate, dipotassium glycyrrhizate, xanthan gum, 1,2-hexanediol, polyglyceryl-10 diisostearate, citric acid, polyglyceryl-10 laurate, sodium citrate, isostearic acid, parfum/fragrance, ethylhexylglycerin, potassium hydroxide, chlorphenesin, phenoxyethanol, citral, citrus aurantium bergamia peel oil, citrus limon peel oil, eucalyptus globulus oil, juniperus virginiana oil, lavandula oil/extract, limonene, linalool, linalyl acetate, pinene

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

The Brightening Serum

C-Tetra Advanced Gel-Serum

Soothing: Glycyrrhiza glabra (licorice) root extract, Scutellaria baicalensis root extract

Antioxidant: Ascorbyl glucoside, Camellia sinensis leaf extract, Ferulic acid

Solvent: Aqua/water/eau, 1,2-hexanediol, Butylene glycol, Glycerin, Limonene, Propanediol

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

The Brightening Serum

C-Tetra Advanced Gel-Serum

Aqua/water/eau

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.

Saccharomyces/rice ferment filtrate

Function: Skin conditioning

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

Glycerin

Also-called: Glycerol | Function: Skin-identical ingredient, Viscosity controlling, Skin protecting, Skin conditioning, Humectant/Moisturizer, Solvent