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Lipid Vitamin C Antioxidant Serum

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.

Stimulates the production of collagen and elastin to help reduce fine lines and wrinkles, as well as visibly brightening the complexion and balancing skin tone.
Skin is left soft, glowing complexion and youthful-looking
Tetrahexyldecyl Ascorbate & Vitamin E
  • Key Benefits
    • C-Tetra®

      Formulated with nourishing, pampering oils combined with the anti-ageing power of vitamin C, this fast-absorbing vitamin C serum is ideal for those looking for skin rejuvenation. Perfect for those who are new to vitamin C, or are looking to upgrade from C-Tetra Cream or Daily Radiance Vitamin C.

      Carefully crafted in a water-free formula to be 100% stable, the vitamin C does not degrade over time. This ensures that your formula remains highly potent from the very first use to the final drop.

    • C-Tetra® Intense

      Harnessing the power of Medik8’s best-selling vitamin C serum ( C-Tetra), C-Tetra Intense is boosted with additional brightening and nourishing ingredients, listed below.

  • How It Works

    Your skin is packed full of natural antioxidants that defend against free radicals from the environment. When these environmental free radicals outweigh your skin’s antioxidants, the skin can no longer protect itself. Free radicals latch onto the defenceless skin cells, causing irreparable damage, which ultimately leads to premature ageing.

    1. C-Tetra contains Tetrahexyldecyl ascorbate, a super-stable form of vitamin C that boosts the antioxidant defence levels in the skin. Ever the multi-tasker, it also stimulates collagen production to reduce the appearance of fine lines and wrinkles, leaving the complexion plump, radiant and youthful looking.

    2. Vitamin C and vitamin E work together synergistically as 'network antioxidants', boosting the serum’s overall antioxidant effect to keep skin protected throughout the day.

    3. C-Tetra® Intense - The serum’s brightening power is supercharged by maracuja oil,which is naturally awash with vitamin E and nourishing fatty acids.

    4. C-Tetra® Intense - Packed full of nourishing vitamin F and squalane which help to reinforce the skin’s natural protective barrier against free radicals.

    5. C-Tetra® Intense - Red ginseng boosts the serum’s brightening powers for a luminous, even complexion.

  • How To Use
    1. After cleansing in the morning, massage 4 drops across the face, neck and décolletage

    2. Leave to absorb before applying moisturiser.

  • Ingredients
    Tetrahexyldecyl Ascorbate

    A lipid-soluble form of vitamin C that provides exceptional antioxidant protection from harmful free radicals, while stimulating collagen production for a youthful complexion.

    Vitamin E

    A lipid-soluble antioxidant that is naturally present in the skin. Vitamin E protects the skin from free radicals and is regenerated by vitamin C for optimum power.

    Maracuja Oil

    Naturally rich in nutrients, maracuja oil nourishes the complexion with fatty acids and provides an antioxidant protective shield.

    Full Ingredients
  • Used in Professional Treatments
    Boost the results of C-Tetra®

    Visit a Medik8 specialist for a detailed skin consultation and experience one of our relaxing anti-ageing facial treatments.

    Platinum Facial

    Our signature facial. A true treatment innovation delivering visible and immediate rejuvenating results. Platinum powder and haritaki superfruit are blended with lifting polysaccharides to visibly plump and firm skin, revealing a more youthful and radiant looking complexion.

    Rewind Professional Skin Peel

    A targeted peel that helps to promote collagen production to reduce the appearance of fine lines and wrinkles. It fades away imperfections, leaving the skin visibly smoothed and rejuvenated.

  • The Science Behind

    “It is exceptionally difficult to formulate a long-lasting vitamin C serum that will keep its power over time. It is notoriously unstable, sensitive to oxidation and can often turn yellow in colour, which indicates that it has gone off. Medik8’s C-Tetra range utilises an extremely stable form of vitamin C, called tetrahexyldecyl ascorbate. This molecule is altered to make it less reactive to oxidation, meaning that even 6 months down the line you can be sure your vitamin C is still as potent as when you first opened it.”

    Daniel Isaacs, Medik8 Director of Research