Description
Medik8 C-Tetra & Medik8 C-Tetra Luxe Vitamin C Serums
Revive your skin’s natural glow and fight visible signs of ageing with Medik8 C-Tetra and C-Tetra Luxe serums.
These advanced vitamin C serums harness the antioxidant power of vitamin C and E to hydrate, brighten and smooth the skin while defending against free radical damage for a youthful, radiant complexion.
Key Benefits
✅ Stimulates collagen and elastin production
✅ Minimises the appearance of fine lines and wrinkles
✅ Brightens and evens skin tone for a luminous complexion
✅ Nourishes and protects the skin’s natural barrier
✅ Hydrates and leaves skin soft, smooth, and glowing
Formulated for Every Skin Type
Medik8 C-Tetra
A lightweight, fast-absorbing 7% vitamin C serum designed for everyday use. Ideal for beginners and those with sensitive or youthful skin, C-Tetra delivers potent antioxidant protection without irritation.
- Water-free, 100% stable formula – ensures long-lasting potency from the first drop to the last
- Tetrahexyldecyl Ascorbate (vitamin C) – highly stable, lipid-soluble form of vitamin C that penetrates deeply for maximum results
- Vitamin E – works synergistically with vitamin C to enhance antioxidant defence
- Leaves skin visibly plump, smooth, and rejuvenated
Medik8 C-Tetra Luxe
For those looking to elevate their skincare routine, C-Tetra Luxe takes the original C-Tetra formula to the next level with 14% Vitamin C for added brightening and nourishing ingredients.
- Maracuja Oil – rich in vitamin E and essential fatty acids to boost hydration and radiance
- Vitamin F & Squalene – fortify the skin’s natural barrier, locking in moisture and shielding against environmental stressors
- Red Ginseng – enhances the serum’s brightening effects, leaving skin luminous and evenly toned
How It Works
Your skin naturally contains antioxidants that protect against environmental free radicals. However, when free radicals overwhelm your skin’s defences, they cause damage that accelerates premature ageing.
Medik8 C-Tetra and C-Tetra Luxe serums are formulated with Tetrahexyldecyl Ascorbate, a powerful and stable form of vitamin C. This supercharged antioxidant not only neutralises free radicals but also stimulates collagen synthesis to reduce fine lines and promote a firmer, more youthful look.
Together with vitamin E, these serums form a “network antioxidant” system, offering enhanced protection and a healthy, glowing complexion throughout the day.
Why Choose Medik8 C-Tetra Serums?
- Advanced formulas for daily radiance and long-term skin health
- Perfect for all skin types, including sensitive skin
- Non-irritating, lightweight, and easy to layer under moisturiser or sunscreen
- Scientifically backed, dermatologist-recommended
Restore your skin’s youthful glow and shield against environmental stress with Medik8 C-Tetra and C-Tetra Luxe – the ultimate vitamin C serums for healthy, radiant skin.
What’s the Difference Between Medik8 C-Tetra & C-Tetra Luxe?
Both serums contain stable vitamin C (Tetrahexyldecyl Ascorbate) and vitamin E to brighten skin and reduce signs of ageing, but they’re designed for slightly different needs:
Medik8 C-Tetra – 7% Vitamin C
- Lightweight and fast-absorbing – perfect for those who prefer a simple, non-greasy serum
- Basic nourishing formula focused on antioxidant protection and collagen support
- Ideal for beginners, younger skin, or sensitive skin
- Key focus: hydrating, brightening, and protecting against free radicals
Medik8 C-Tetra Luxe – 14% Vitamin C
- Richer, more luxurious texture for those who want extra hydration
- Enhanced with additional brightening and nourishing ingredients:
- Maracuja Oil – rich in vitamin E and essential fatty acids for added hydration and radiance
- Vitamin F & Squalene – strengthen and protect the skin barrier
- Red Ginseng Extract – boosts brightening power for a luminous, even complexion
- Perfect for dry, mature, or dull skin that needs extra glow and rejuvenation
- Key focus: deep hydration, intensive brightening, and skin radiance
Targeted Care for the Delicate Eye Area
Medik8 C-Tetra Eye – a gentle vitamin C serum specially formulated for the delicate skin around the eyes. It brightens dark circles, smooths fine lines and refreshes tired eyes for a wide-awake look.
In Short:
- C-Tetra – A simpler, lightweight serum for daily brightening and antioxidant protection
- C-Tetra Luxe – A richer, more intensive formula for deeper hydration and luminosity
- Medik8 C-Tetra Eye – Specifically for around the eye area
Select from the options below
Medik8 Range of Vitamin C Serums include;
Super C Ferulic – potent 30% Vitamin C Serum
Pure C15 – 15% L-ascorbic acid form of Vitamin C with enhanced brightening action
Look through our extensive selection of Vitamin C Serums here;
CE Ferulic – for mature, sensitive, dry & post treatment skin
Phloretin CF – for combination or pigmentation prone skin
Silymarin CF – for oily, congested, blackhead-prone skin
Additional information
C-Tetra Serums | C-Tetra, C-Tetra Luxe, C-Tetra Eye Serum |
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Product Ingredients
C-TETRA® Lipid Vitamin C Radiance Serum
Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol. 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 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
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 C-TETRA INTENSE
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.
Tetrahexyldecyl Ascorbate – A lipid-soluble form of vitamin C that provides exceptional antioxidant protection from harmful free radicals, while stimulating collagen production.
Maracuja Oil – Rich in nutrients, nourishes the complexion with fatty acids and provides an antioxidant protective shield
Vitamin F – Vitamin F is an omega-6 essential fatty acid which deeply nourishes and hydrates the complexion
Optimised Red Ginseng –This natural extract boosts the serum’s brightening powers while stimulating collagen production
Vitamin E – Vitamin E protects the skin from free radicals and is regenerated by vitamin C for optimum power
Squalane – A natural emollient; squalane helps to restore the skin’s natural defensive barrier while deeply hydrating the skin
How to Use
How To Use
After cleansing in the morning, massage 4 drops across the face, neck and décolletage
Leave to absorb before applying moisturiser.