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save nowDefend against premature ageing and unlock visible radiance with Medik8 C-Tetra Advanced, a cutting-edge 20% vitamin C gel-serum infused with phyto exosomes and powerful antioxidants. Clinically proven to brighten skin and visibly reduce wrinkles in just 7 days* with 0% barrier disruption*, this next-generation formula delivers transformative results with a gentle, intelligent touch.
Powered by stabilised vitamin C, deep-delivering phyto exosomes, and omni-antioxidant acetyl zingerone, this high-performance serum offers daily protection against environmental aggressors while smoothing skin texture and supporting long-term barrier health. Hydrating hyaluronic acid and skin-refining N-acetyl glucosamine complete the formula, leaving your complexion brighter, firmer, and more resilient with every use.
Benefits of Medik8 C-Tetra Advanced 30ml:
- Brightens skin and evens tone in 7 days.*
- Strengthens and supports the skin barrier.
- Defends against pollution and environmental stressors.
- Improves skin texture and smoothness.
- Fast-absorbing gel-serum with a lightweight, refreshing finish.
How to Use:
Apply as part of your morning skincare routine. Massage 2–3 pumps across the face, neck and décolletage. Follow with moisturiser and always finish with sunscreen.
Size: 30ml
*Proven via independent clinical study conducted over 4 weeks on 32 participants.
Aqua (Water), Tetrahexyldecyl Ascorbate, Isododecane, Propanediol, Acetyl Glucosamine, Squalane, Tocopherol, Acetyl Zingerone, Camellia Sinensis (Green Tea) Leaf Vesicles, Hydroxyacetophenone, Sodium Hyaluronate, Cellulose, Avena Sativa (Oat) Kernel Extract, Glycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Sucrose Stearate, Tetrasodium Glutamate Diacetate, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Sodium Benzoate, Cellulose Gum, 1,2-Hexanediol, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Phenoxyethanol, Citral, Linalool, Limonene.


