Medik8 C-TETRA
Medik8 C-TETRA


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Medik8 C-TETRA

(2 customer reviews)


Medik8 C-TETRA

Experience skin rejuvenation like never before with Medik8’s C-Tetra® Intense. Dive into a blend of luxury and science in this stellar formulation that promises not just skincare, but skin transformation.

  1. Deep Radiance: This super-light daily vitamin C serum is your ticket to restored radiance and an even skin tone.
  2. Anti-Ageing Marvel: Fortified with antioxidants through vitamins C and E, C-Tetra® not only combats sun and pollution damage but also actively diminishes fine lines and wrinkles.
  3. Powerful Yet Gentle: Using a lipid-soluble form of vitamin C, tetrahexyldecyl ascorbate, ensures that the serum dives deep into the skin, offering potent antioxidant protection without the sting.
  4. Stability First: Being a water-free concoction, C-Tetra guarantees 100% stability. Your serum remains as potent on day 100 as it was on day 1.
  5. Pampering Oils Meet Science: With a blend of nourishing oils and the unparalleled anti-ageing strength of vitamin C, C-Tetra® Intense offers a luxurious experience tailored for those venturing into vitamin C serums or thinking of an upgrade from C-Tetra Cream or Daily Radiance Vitamin C.
  6. Boosted Brightening & Nourishment: Capitalising on the power of Medik8’s best-selling vitamin C serum, C-Tetra+ Intense incorporates additional elements for enhanced skin luminance and nourishment.

Note: The ingredients showcased here offer a snapshot. For a comprehensive ingredient list, kindly refer to the product’s box or the enclosed leaflet.





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Medik8 C-TETRA®

Revolutionary Sun Shield: Medik8’s C-Tetra Vitamin Boost

Restore radiance and fight visible signs of ageing with C-Tetra, a super-light daily vitamin C serum. Antioxidant power is provided through vitamin C and E. Together, these actives help to combat sun and pollution-induced damage. The lightweight, uplifting formula 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. 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. C-Tetra has been carefully crafted in a water-free formula to be 100% stable, which means that 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. 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.

At SkinAddict, our in-depth experience has taught us the significance of impeccable skincare. Sun exposure, while vital for vitamin D synthesis, can have detrimental effects on our skin, accelerating ageing and reducing elasticity. Medik8’s C-Tetra, a masterpiece in our curated collection, is an elixir specially crafted to combat these challenges.

Undoing the Sun’s Work: Protect, Restore, Rejuvenate

The sun’s rays, though invigorating, can be your skin’s foe, causing a decrease in collagen, elasticity, and an uneven complexion. Medik8’s C-Tetra is your shield, fortified to counteract sun-induced damage. Its diligent formula not only triggers collagen synthesis but also accentuates the skin’s elasticity and density, paving the way for a refreshed and revived complexion.

Why Medik8 C-Tetra Stands Out:

  • Guard Against Ageing: Combat oxidative stress, the primary culprit of photo-ageing, and keep your skin youthful.
  • Achieve That Ethereal Glow: Illuminate your skin with an even tone, suppleness, and unmatched hydration.
  • Turn Back Time: Boost collagen and elastin synthesis, watching those minor lines and wrinkles fade away.

Trust in the Blend: This ingenious, water-free formulation merges the comfort of skin-nurturing oils with the potent anti-ageing prowess of Vitamin C. Shielding against the combined harms of sun and pollution, this blend promises radiant combat against ageing signs. The magic lies in the stability of the formula; your vitamin C remains as potent on the last day as on the first, ensuring consistent radiant results.

Key Players in C-Tetra:

  • Tetrahexyldecyl Ascorbate: This lipid-soluble vitamin C variant not only offers superior protection against harmful free radicals but also stimulates collagen production, heralding a youthful aura.
  • Vitamin E: A natural skin resident, this lipid-soluble antioxidant protects against free radicals. Its potency is further enhanced by the regenerative powers of vitamin C.

Please be advised: Unfortunately, we are unable to ship this product outside the UK or Ireland.

Usage Guide: For optimal results, cleanse your face at dawn and gently massage 4 drops across your face, neck, and décolletage. Allow the serum to be absorbed fully before sealing in the goodness with your favourite moisturiser.

Product Volume: 30ml.

How it works

Achieve skincare brilliance with Medik8’s C-TETRA® | C-TETRA® LUXE – a marriage of science and luxury. Harnessing the rejuvenating power of Vitamin C, this serum is the quintessence of years of research, ensuring your skin receives the nourishment it truly deserves.

Start your day right with radiant skin. Begin by cleansing your face thoroughly. Gently massage 4 drops of Medik8 C-TETRA® | C-TETRA® LUXE across your face, neck, and décolletage, ensuring even coverage. Wait for the serum to fully sink into your skin before applying your preferred moisturiser or sunscreen

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. 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. As a lipid-soluble form of vitamin C, it is able to penetrate the skin’s defensive lipid barrier with ease; delivering benefits deep within the skin. 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.

The serum’s brightening power is supercharged by maracuja oil, which is naturally awash with vitamin E and nourishing fatty acids. Alongside this, the intense version of our cult serum is packed full of nourishing vitamin F and squalane which help to reinforce the skin’s natural protective barrier against free radicals. Meanwhile, optimised red ginseng boosts the serum’s brightening powers for a luminous, even complexion.


Ingredient Purpose
Tetrahexyldecyl Ascorbate Lipid-soluble vitamin C. Offers antioxidant protection and stimulates collagen production.
Vitamin E Protects skin from free radicals. Regenerated by vitamin C for optimum antioxidant power.
Jojoba Oil Moisturises and helps to improve skin texture.
Safflower Oil Nourishes skin and locks in moisture.

Note: This list is an overview; please refer to the box or leaflet inside for a comprehensive list of ingredients.


2 reviews for Medik8 C-TETRA

  1. Sarah Kelly

    The best Vitamin C serum I’ve tried, no sensitivity and glides into the skin!

  2. sam clarke

    I absolutely love this Vitamin C product, it has a fresh zesty scent, you can feel the good going into your skin.

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