Defend against premature skin ageing and experience accelerated visible brightening with Medik8 C-Tetra® Advanced in a deluxe 4ml sample. This next-generation vitamin C gel-serum delivers a potent 20% stabilised vitamin C complex, combined with cutting-edge phyto exosomes to help shield skin from environmental stressors that can trigger early ageing.

Clinically proven to brighten skin and visibly improve wrinkles in just 7 days* with 0% barrier disruption*, C-Tetra Advanced is engineered for high-performance brightening, daily antioxidant defence and a noticeably smoother, more radiant complexion.

Description

This intelligent gel-serum pairs 20% stabilised vitamin C (tetrahexyldecyl ascorbate) with restorative phyto exosomes and omni-antioxidant acetyl zingerone to help neutralise free radicals and support healthy-looking, resilient skin.Lightweight yet cushiony, it glides over the skin without greasiness, making it the ideal morning antioxidant step for those serious about brightening and prevention.

Key Benefits

• High-strength 20% stabilised vitamin C for advanced brightening and antioxidant protection.
• Clinically proven to brighten and visibly improve wrinkles in 7 days with 0% barrier disruption.
• Phyto exosomes help support skin recovery from environmental stressors and premature ageing.
• Acetyl zingerone works synergistically with vitamin C to neutralise free radicals and support the skin barrier.
• Leaves skin looking smoother, more even-toned and luminosity boosted.
• Perfect deluxe 4ml size to trial Medik8’s next-generation vitamin C technology.

How to Use

Use in the morning after cleansing and toning. Apply 4–6 drops of C-Tetra® Advanced to the face, neck and décolleté, avoiding the eye area. Allow to absorb, then follow with your chosen moisturiser. Always finish with a broad-spectrum SPF as the final step in your daytime routine.

Ingredients

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.:

Suitable For

All skin types looking to prevent or address early signs of ageing.

Dull, uneven or lacklustre skin needing a visible brightening boost.

Those wanting a powerful yet gentle daily antioxidant serum to slot into a CSA (vitamin C + SPF by day, vitamin A by night) routine.:*Independent clinical study on C-Tetra Advanced – brightening and wrinkle improvement with 0% barrier disruption.