Beauty Comparison
Medik8 C-Tetra Advanced

Photo and link: Amazon

Medik8

C-Tetra Advanced

serum · 30 ml · Skincare

Medik8 C-Tetra Advanced is free of fragrance, drying alcohol, sulfates, silicones, parabens and MI / MCI, going by its full 31-ingredient list, with hyaluronic acid, glycerin and vitamin c. List checked November 5, 2026.

The catch: it contains essential oils (Citrus Grandis (Grapefruit) Peel Oil) and labelled fragrance allergens (Citral, Linalool).

  • Fragrance-free
  • Contains essential oils
  • Contains labelled fragrance allergens
  • No drying alcohol
  • Sulfate-free
  • Silicone-free
  • Paraben-free
  • No MI/MCI

Listed on Amazon in: United Kingdom · Germany · France · Italy · Spain · Netherlands

Key ingredients in C-Tetra Advanced

  • Hyaluronic acid

    A humectant that pulls water into the top layer of skin.

  • Glycerin

    A classic humectant that keeps skin hydrated.

  • Vitamin C

    An antioxidant that brightens and evens tone.

  • Squalane

    A light, skin-compatible emollient.

  • Vitamin E

    An antioxidant that protects the formula and the skin.

Full ingredient list, decoded

31 ingredients, in label order (highest amount first; below about 1% the order is free).

  1. 1Aqua (Water)Aqua is the INCI name for water, the main base of many creams, lotions and cleansers…
  2. 2Tetrahexyldecyl Ascorbate
  3. 3IsododecaneIsododecane is a light, branched oil made only of carbon and hydrogen, mainly used as a…
  4. 4PropanediolPropanediol is a clear liquid that draws water toward the skin. Its jobs are as a…
  5. 5Acetyl Glucosamine
  6. 6SqualaneSqualane is a light, oil-like ingredient that softens skin and helps it hold moisture.…
  7. 7TocopherolTocopherol is vitamin E, a fat-soluble antioxidant. Its main job is to slow the…
  8. 8Acetyl Zingerone
  9. 9Camellia Sinensis (Green Tea) Leaf Vesicles
  10. 10HydroxyacetophenoneHydroxyacetophenone is a preservative-support ingredient that helps protect a formula…
  11. 11Sodium HyaluronateHyaluronic acid is a sugar-based molecule, naturally found in skin, that holds a lot of…
  12. 12CelluloseCellulose is the main structural fiber in plant cell walls. In skincare and makeup, it…
  13. 13Avena Sativa (Oat) Kernel ExtractA plant-derived ingredient made from the kernels of the oat seed. Its main job is to…
  14. 14GlycerinGlycerin is a clear, thick, odorless liquid that pulls water into the skin and helps…
  15. 15Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
  16. 16Citrus Grandis (Grapefruit) Peel OilEssential oils
  17. 17Sucrose Stearate
  18. 18Tetrasodium Glutamate DiacetateTetrasodium Glutamate Diacetate is a chelating agent, a salt made from glutamic acid,…
  19. 19EthylhexylglycerinEthylhexylglycerin is a lab-made, skin-friendly ingredient that boosts the power of…
  20. 20Acrylates/C10-30 Alkyl Acrylate CrosspolymerA synthetic polymer that thickens and stabilizes formulas, giving lotions, gels and…
  21. 21Xanthan GumXanthan Gum is a thickener and stabilizer made by fermenting sugar with a bacterium. It…
  22. 22Sodium BenzoateSodium benzoate is the sodium salt of benzoic acid, a water-soluble powder used mainly…
  23. 23Cellulose GumA plant-derived thickener made from cellulose, the fiber found in plant cell walls,…
  24. 241,2-Hexanediol1,2-Hexanediol is a small, clear liquid that acts as a solvent, a humectant and a…
  25. 25Polysorbate 60Polysorbate 60 is a mild, water-loving emulsifier made from sorbitol, ethylene oxide…
  26. 26Sorbitan IsostearateSorbitan Isostearate is a common emulsifier made by joining sorbitol with isostearic…
  27. 27Citric AcidCitric acid is a mild, naturally occurring acid found in citrus fruit. In skincare and…
  28. 28PhenoxyethanolA synthetic preservative that helps stop bacteria, yeast and mold from growing in…
  29. 29CitralCitral is a lemon-scented compound found in lemongrass and other citrus oils, used…Labelled fragrance allergens
  30. 30LinaloolLinalool is a fragrance compound found naturally in flowers and herbs, and in skincare…Labelled fragrance allergens
  31. 31LimoneneLimonene is a natural scent molecule found in citrus peel oils. It gives products a…Labelled fragrance allergens

Source: Medik8 product page, eu.medik8.com/products/c-tetra-advanced, retrieved November 5, 2026.

Every flag we check

CheckResultIngredients found
FragranceNone listed—
Essential oilsContainsCitrus Grandis (Grapefruit) Peel Oil (#16)
Labelled fragrance allergensContainsCitral (#29), Linalool (#30), Limonene (#31)
Drying alcoholNone listed—
SulfatesNone listed—
SiliconesNone listed—
ParabensNone listed—
MI / MCINone listed—
Formaldehyde releasersNone listed—
Mineral oil & petrolatumNone listed—
LanolinNone listed—
Chemical UV filtersNone listed—

Frequently asked questions

Is Medik8 C-Tetra Advanced fragrance-free?

Yes. Medik8 C-Tetra Advanced lists no parfum or fragrance, but it does contain essential oils (Citrus Grandis (Grapefruit) Peel Oil). Checked against its full ingredient list on November 5, 2026.

Does Medik8 C-Tetra Advanced contain silicones, sulfates or parabens?

Silicones: none listed. Sulfates: none listed. Parabens: none listed.

What is Medik8 C-Tetra Advanced good for?

By its ingredient list it fits mi allergy, acne-prone skin, psoriasis and pregnancy: it passes every free-from rule we set for those needs. Key ingredients: Hyaluronic acid, Glycerin, Vitamin C and Squalane.

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