Medik8 C-Tetra Advanced 30ml – 20% Vitamin C Brightening & Anti-Ageing Serum

Medik8 C-Tetra Advanced 30ml – Next-Generation Vitamin C Serum for Brighter, Younger-Looking Skin

Experience the future of Vitamin C skincare with Medik8 C-Tetra Advanced 30ml — a breakthrough, high-performance serum that redefines what a Vitamin C treatment can achieve. Combining stabilised 20% Vitamin C with revolutionary phyto exosomes and powerful omni-antioxidant acetyl zingerone, this intelligently engineered formula delivers accelerated visible brightening, skin smoothing and daily antioxidant defence — all without disrupting the skin's natural barrier.

Clinically proven to brighten skin and visibly improve the appearance of wrinkles in just 7 days¹, C-Tetra Advanced is the smarter, more advanced way to fight premature ageing and reveal your most radiant complexion.

What is Medik8 C-Tetra Advanced?

Medik8 C-Tetra Advanced is a next-generation Vitamin C brightening serum that goes beyond conventional Vitamin C formulas. While most Vitamin C serums rely on a single active, C-Tetra Advanced features a sophisticated multi-ingredient complex that not only delivers the proven brightening and anti-ageing benefits of high-potency Vitamin C — but also actively shields the skin from environmental stressors, supports recovery and neutralises the ageing effects of free radicals, all while maintaining complete barrier integrity.

The result is a high-performance, age-defying serum that works smarter, not harsher — making it ideal for those who want visible, clinically proven results without compromising skin health.

Key Ingredients & How They Work:

Stabilised 20% Vitamin C (Ascorbyl Tetraisopalmitate) At the heart of C-Tetra Advanced is a potent, oil-soluble form of Vitamin C — one of the most stable and skin-compatible derivatives available. Unlike traditional L-ascorbic acid formulas that can oxidise quickly and cause irritation, this stabilised form of Vitamin C penetrates deeply into the skin to deliver consistent, reliable brightening, collagen stimulation and antioxidant protection — without the instability or sensitivity concerns of conventional Vitamin C serums.

Phyto Exosomes – Cutting-Edge Restorative Technology Phyto exosomes are plant-derived nano-vesicles at the forefront of modern skincare science. These microscopic carriers help to shield the skin from environmental stressors, support the skin's natural recovery mechanisms and enhance the overall resilience of the complexion. By incorporating phyto exosomes into the formula, Medik8 has created a Vitamin C serum that not only brightens and protects — but actively helps the skin repair and strengthen itself over time.

Acetyl Zingerone – Omni-Antioxidant Defence Derived from ginger, acetyl zingerone is a powerful multi-spectrum antioxidant that neutralises a broad range of free radicals — including those triggered by UV exposure, pollution and other environmental aggressors. It works synergistically with Vitamin C to provide comprehensive, 360° antioxidant protection, helping to prevent the oxidative stress that accelerates visible skin ageing.