A brown bottle labeled "Medik8 C-Tetra®" with a dropper containing a clear liquid, and several drops of the Vitamin C serum are on the surface below it.
A hand holds a bottle of Medik8 C-Tetra® against an orange background. Text highlights benefits in one week: brighter skin, smoother skin, healthy-looking glow, and restored skin radiance. This potent serum helps fight ageing effectively.
Close-up of a person applying a hydrating serum to their face with a dropper. Text overlay reads: "87% of sensitive skins agree this is the most gentle vitamin C serum they've ever used to fight ageing. C-Tetra® by Medik8.
Two Medik8 products are displayed. The C-Tetra® Luxe on the left claims 2x more vitamin C and improved results, perfect for those looking to fight ageing. The ultra-gentle C-Tetra® on the right is suitable for sensitive skin, offering hydrating serum benefits.
Image of C-Tetra® by Medik8 with text highlighting its benefits: antioxidants for youthful skin, high performance with low irritation, and ultra-lightweight, fast-absorbing, non-greasy formula—an essential in Vitamin C serums to fight ageing effectively.
Two amber glass bottles of Medik8 C-Tetra® Vitamin C serum, one with a dropper, are displayed on an orange surface. The bottle on the right rests on a small orange block, promoting a regimen designed to fight ageing.
A small brown glass bottle labeled "Medik8 C-Tetra®" sits next to a white box with the same name, reportedly containing a Vitamin C serum that fights ageing and boosts radiance.
A 30ml bottle of Medik8 C-Tetra® Vitamin C Radiance Serum, a potent Vitamin C serum designed to fight ageing, is shown next to its packaging box.
Image showcasing Medik8's CSA Philosophy for skincare: using C-Tetra® for brightening, Sunscreen for protection, and Vitamin A for renewal. Each product, including hydrating serums, is recommended for specific times of use: AM or PM to fight ageing effectively.


Lipid Vitamin C Radiance Serum


Free & Fast Delivery in Cyprus with ACS

Medik8’s cult-favourite vitamin C serum, featuring stabilised vitamin C that is gentle on sensitive skins and vitamin C-beginners, yet effective in delivering visible brightening results.

Up to 6 months supply from a full size bottle (2 months' supply from a travel size).

A proven low- irritation formula, 96% of sensitive skins found C-Tetra to be gentle on their skin.*
Vitamin C minimises the appearance of fine lines and wrinkles over time, while helping to visibly balance and brighten the skin tone.
Tetrahexyldecyl Ascorbate (Vitamin C) & Vitamin E
  • Key Benefits
  • How It Works
  • How To Use
  • Ingredients
  • Used in Professional Treatments
  • The Science Behind


Restore radiance and fight visible signs of ageing with C-Tetra. Utilising the antioxidant power of vitamin C and E, the hydrating serums brighten and smooth the complexion, while fighting free radicals to reduce visible signs of ageing.