Medik8 C‑Tetra® Advanced Gel‑Serum (30 mL)

Description

Medik8 C-Tetra Advanced Gel-Serum 30ml is a next-generation vitamin C gel-serum delivering 20% stabilised tetrahexyldecyl ascorbate — three times the concentration of the original C-Tetra. It combines high-potency vitamin C with Phyto Exosomes and acetyl zingerone for accelerated brightening, wrinkle reduction and comprehensive antioxidant defence. Furthermore, it is clinically proven to brighten skin and visibly improve wrinkles in just 7 days.

Why Choose Medik8 C-Tetra Advanced Gel-Serum

C-Tetra Advanced is the most potent formulation in the Medik8 C-Tetra range — ideal for experienced vitamin C users seeking maximum brightening and antioxidant correction. The lightweight gel-serum texture absorbs instantly without greasiness and layers perfectly under moisturiser and SPF as part of Medik8’s CSA Philosophy — vitamin C and sunscreen by day, vitamin A by night.

Medik8 C-Tetra Advanced Key Benefits

• 20% Stabilised Vitamin C — the highest C-Tetra concentration for maximum brightening results.
• Clinically Proven in 7 Days — visibly brighter skin and reduced wrinkles within one week.
• Phyto Exosomes — plant-derived delivery system that soothes and supports the skin barrier.
• Omni-Antioxidant Defence — acetyl zingerone neutralises environmental free radicals.
• Hydrates and Plumps — hyaluronic acid and squalane deliver deep, lasting moisture.
• Lightweight Gel Texture — non-greasy, fast-absorbing and suitable for all skin types.

Key Ingredients

• Tetrahexyldecyl Ascorbate (20%) — potent, stable vitamin C that brightens, protects and stimulates collagen.
• Phyto Exosomes (Green Tea Leaf Vesicles) — plant-derived delivery system that soothes and strengthens the skin barrier.
• Acetyl Zingerone — super-antioxidant that enhances vitamin C benefits and defends against environmental stressors.
• Sodium Hyaluronate — multi-weight hyaluronic acid for immediate and lasting hydration.
• Acetyl Glucosamine — skin-brightening active that works alongside vitamin C to even skin tone.
• Tocopherol (Vitamin E) — antioxidant that works in synergy with vitamin C for enhanced protection.

Free From

• Vegan Certified
• Paraben-Free
• Gluten-Free
• Suitable for All Skin Types

How to Use

Each morning after cleansing, massage 2–3 pumps across the face, neck and décolletage. Allow to absorb fully before applying moisturiser and SPF. Always finish with sun protection when using vitamin C.

Ingredients (INCI)

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.

Available from Aesthetic Cellology. Authorised Medik8 stockists at 118 Baker Street, London W1U 6TT.

Additional information