Medik8 C-Tetra Advanced 20% Vitamin C Gel-Serum with Phyto Exosomes, 30ml

Defend against premature skin ageing and achieve accelerated skin brightening with a next-generation combination of 20% vitamin C and skin barrier science.

Clinically proven to brighten skin and visibly improve wrinkles in 7 days with 0% barrier disruption, C-Tetra Advanced is engineered for high-performance visible brightening, skin smoothing, and daily antioxidant defence.

This intelligent ingredient complex combines potent, stabilised, 20% vitamin C with restorative phyto exosomes for deep, controlled delivery, and omni-antioxidant acetyl zingerone to neutralise the ageing effects of free radicals.

The result? A high-performance, age-defying vitamin C serum that works smarter, not harsher.

• Dramatic Skin Brightening: Clinically proven to visibly brighten skin and even tone in 7 days for a radiant, luminous complexion[1]
• Enhanced Skin Barrier Support: Powerful phyto exosomes deliver replenishing bioactives to skin cells rapidly & effectively, ensuring 0% barrier disruption[1]
• Premature Skin Ageing Defence: Shields skin from damaging free radicals, pollution, and daily environmental stressors to help defend against premature skin ageing
• Smooth and Even Complexion: Clinically proven to visibly improve skin smoothness and texture in 7 days, leaving a soft, polished finish[1]
• Lightweight Finish: The fast-absorbing gel-serum texture hydrates, smooths, and primes, leaving skin instantly refreshed and ready for the day ahead

• 7 days to visibly brighter skin[1]
• 7 days to visibly reduced wrinkles[1]
• 0% barrier disruption[1]
• 7 days to visibly smoother skin texture[1]
• Reduces 90% of pollution damage to the skin's surface[2]

• [1] Proven via an independent clinical study conducted over 4 weeks on 32 participants.
• [2] Proven via in vitro protein carbonylation data against particulate matter pollution on the stratum corneum and epidermis.
• [3] Proven via an in vitro protein carbonylation study using European standard reference environmental pollutants.

• 20% Stabilised Vitamin C (Tetrahexyldecyl Ascorbate) A highly potent yet gentle form of vitamin C for dramatic skin brightening and powerful antioxidant protection against premature skin ageing
• Phyto Exosomes: Encapsulated by nature, our phyto exosomes intelligently deliver proteins, lipids, and messenger molecules to skin cells. Together, alongside our supercharged vitamin C, they help prevent and reduce premature skin ageing by supporting healthier-looking, more resilient skin
• Acetyl Zingerone (pronounced 'a-sea-tul'): A super-antioxidant that works synergistically with vitamin C, enhancing its efficacy while neutralising ageing free radicals and shielding skin from environmental stressors
• Multi-Weight Hyaluronic Acid: Draws moisture into the skin to instantly plump and deeply hydrate for a soft, supple complexion
• N-Acetyl Glucosamine (NAG): A barrier-supporting, gentle, skin-refiner that smooths the look of pores, while helping to increase the skin's own natural hyaluronic acid levels over time

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.

Product packaging shown may be different to the product received due to regional variations.

• Beauty effect: Fine Lines & Wrinkles, Anti-Wrinkle, Smoothing, Dryness, Brightening, Reduces Pigmentation, Pollution & Environmental Damage, Visible Pores
• Safe for new and expectant mothers: Yes
• Skin type: Combination, Dry, Normal, Oily, Sensitive
• Country of origin: United Kingdom
• Free from: Alcohol Free, Phthalate Free

Safety Warning: Avoid eye area. If product enters eyes, rinse well with water. If irritation occurs, cease use. Should irritation persist, consult a doctor. Use only as directed and on unbroken skin. Patch testing prior to use is advised.

Suitable for vegans/vegetarians: Suitable For Vegans