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C-Tetra®

Lipid Vitamin C Antioxidant Serum

As low as £35
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.

C-Tetra® Intense
Harnessing the power of Medik8’s best-selling vitamin C serum, C-Tetra+ Intense is boosted with additional brightening and nourishing ingredients, listed below.
  • No Artificial Fragrance
  • No Synthetic Colours
  • Paraben Free
  • No Phthalates
  • Vegan Friendly
  • Alcohol Free
  • Zipper Donation
  • Cruelty Free
Availability:In stock
  • No Artificial Fragrance
  • No Synthetic Colours
  • Paraben Free
  • No Phthalates
  • Vegan Friendly
  • Alcohol Free
  • Zipper Donation
  • Cruelty Free
Key Benefits
Utilising the antioxidant power of vitamin C and E, the hydrating serum brightens and smooths the complexion, while fighting free radicals to reduce visible signs of ageing. With an uplifting sweet orange 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.
Ingredients
C-Tetra®
Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Limonene.

C-Tetra® + Intense
Squalane, Simmondsia Chinensis (Jojoba) Seed Oil, Tetrahexyldecyl Ascorbate, Dimethicone, Candida Bombicola/Glucose/Methyl Rapeseedate Ferment, Citrus Grandis (Grapefruit) Peel Oil, Ethyl Linoleate, Passiflora Edulis (Maracuja) Seed Oil, Tocopheryl Acetate, Panax Ginseng Root Oil, Olea Europaea (Olive) Fruit Oil, Helianthus Annuus (Sunflower) Seed Oil, Prunus Armeniaca (Apricot) Kernel Oil, Prunus Amygdalus Dulcis (Sweet Almond) Oil, PPG-12/SMDI Copolymer, Limonene.

* Although we try our best to ensure this list of ingredients is accurate however there may be product upgrades from time to time, or slight variants between different regions based on local laws, meaning the only definitive ingredient list is that which is printed on the product packaging.
Direction Of Use
After cleansing in the morning, massage 4 drops across the face, neck and décolletage. Leave to absorb before applying moisturiser.

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. 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.

Key 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.

Key ingredients in Intense Upgrade

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

Vitamin F – Otherwise known as ethyl linoleate or linoleic acid, vitamin F is an omega-6 essential fatty acid which deeply nourishes and hydrates the complexion.

Optimised Red Ginseng – Extracted from the root of red ginseng, this natural extract boosts the serum’s brightening powers while stimulating collagen production.

Squalane – A natural emollient; squalane helps to restore the skin’s natural defensive barrier while deeply hydrating the skin.

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.

Age Defying Facial

An indulgent age-defying treatment that infuses skin with Medik8 core actives, vitamin C and vitamin A, to reveal a glowing, more youthful appearance.

agePeel™

A potent chemical peel that targets fine lines, wrinkles and skin imperfections to uncover a more youthful-looking complexion.

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