C-Tetra Advanced
Serum
Lists fragrance allergens, essential oils
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All 31 ingredients
C-Tetra Advanced by Medik8 lists 31 ingredients, in label order. Each line says what the ingredient does in the formula.
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aqua
Solvent
tetrahexyldecyl ascorbate
isododecane
propanediol
Solvent · humectant
acetyl glucosamine
squalane
Emollient
tocopherol
Antioxidant
acetyl zingerone
camellia sinensis leaf vesicles
hydroxyacetophenone
sodium hyaluronate
Humectant
microcrystalline cellulose
avena sativa kernel extract
glycerin
Humectant
hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer
citrus grandis peel oil
sucrose stearate
tetrasodium glutamate diacetate
ethylhexylglycerin
Preservative booster
acrylates/c10-30 alkyl acrylate crosspolymer
xanthan gum
Thickener
sodium benzoate
Preservative
cellulose gum
1,2-hexanediol
polysorbate 60
sorbitan isostearate
citric acid
pH adjuster
phenoxyethanol
Preservative
citral
Fragrance allergen (EU list)
linalool
Fragrance allergen (EU list)
limonene
Fragrance allergen (EU list)
Ingredients: Medik8 website · Updated October 21, 2026