Medik8 C-Tetra – Lipid Vitamin C Antioxidant Serum





Skin Type:

Combination, Dry, Normal

Skin Concern:

Ageing, Dullness, Oiliness, Pigmentation, Uneven tone/texture, Visible pores

Categories: ,


Restore radiance and fight visible signs of ageing with Medik8 C-Tetra, a super-light daily Vitamin C serum.

Utilising the antioxidant power of Vitamin C and Vitamin E, this hydrating serum brightens the complexion and fights free radicals to reduce visible signs of ageing.

Using a lipid-soluble form of Vitamin C called Tetrahexyldecyl Ascorbate, the formula penetrates deep into skin to provide powerful antioxidant protection with minimal irritation. The oil-free formulation means the Vitamin C does not degrade over time. This ensures your formula remains highly potent from the very first use to the final drop.

Medik8 C-Tetra uses a nourishing and easily absorbed Jojoba Oil base, making it perfect for anyone wanting to incorporate a potent yet gentle Vitamin C into their skin care routine.

With an uplifting light citrus scent, it is the perfect way to kick-start your morning skincare.

The formula sinks into skin quickly, leaving behind a soft and glowing complexion.


  • The skin’s antioxidant defences are boosted
  • The appearance of fine lines and wrinkles is reduced
  • The skin appears brighter and more radiant
  • Skin is replenished with Jojoba Oil and essential fatty acids

Suits all skin types.

Tip: Tetrahexyldecyl Ascorbate is a stable form of Vitamin C, however also apply a high SPF broad-spectrum sunscreen in the morning.

Want help putting together a skin care routine for your skin? Check out our Skin Care Packages.

How to use

Apply Medik8 C-Tetra Lipid Vitamin C after cleansing in the morning.  Massage 3-4 drops across the face, neck and décolletage.

Leave to absorb before applying moisturiser.

Ensure you apply a high SPF broad-spectrum sunscreen in the morning.


Active Ingredients

Tetrahexyldecyl Ascorbate and Vitamin E.


Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Limonene.

Medik8 products are made without synthetic colours, artificial fragrance, parabens, phthalates or alcohol.

Vegan friendly and cruelty free.


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