Medik8 C-TETRA® | Vitamin C Serum | 30ml

Product details

Product Overview - Medik8 C-TETRA® | Vitamin C Serum | 30ml. Discover the transformative power of Medik8 C-TETRA®, a cult-favourite vitamin C serum that restores radiant skin in just seven days. This lightweight, professional-grade serum features 7% Tetrahexyldecyl Ascorbate, a stabilised form of vitamin C that delivers exceptional brightening results whilst remaining gentle enough for sensitive skin and those new to vitamin C.. Formulated with a 100% stable, lipid-soluble vitamin C that penetrates deeply without oxidising or degrading over time, C-TETRA® provides powerful antioxidant protection from morning until night. Enhanced with Vitamin E for synergistic defence against environmental stressors, this silky jojoba seed oil-based serum works to visibly brighten uneven skin tone, smooth the appearance of fine lines and wrinkles, and restore a healthy, youthful glow. Suitable for all skin types, particularly sensitive skin requiring gentle yet effective anti-ageing care.. Key Benefits at a Glance:. Immediate Benefits:. Instant radiance boost with a lightweight, silky texture that absorbs effortlessly into skin, leaving behind a soft, luminous glow without greasiness. Powerful antioxidant defence provided by the synergistic combination of vitamin C and vitamin E, working as network antioxidants to shield skin throughout the day. Gentle, non-irritating formula that 96% of sensitive skin users confirmed was the gentlest vitamin C serum they had ever experienced. Enhanced skin comfort as 90% of participants agreed their skin felt instantly softer after application, with visible improvement from the very first use. Long-Term Benefits:. Clinically proven to deliver transformative results, C-TETRA® works progressively to address multiple signs of ageing and environmental damage. Within just seven days, independent studies demonstrate restored skin radiance and visibly brighter complexion. After four weeks of consistent use, participants experienced significantly reduced appearance of wrinkles, dark spots and hyperpigmentation.. The stabilised vitamin C actively stimulates collagen and elastin synthesis within the deeper layers of skin, promoting visibly plumper, more resilient skin texture. This advanced formulation provides ongoing protection against oxidative stress and free radical damage, the primary causes of premature skin ageing, whilst working to even out skin tone and restore the skin's natural luminosity for long-term skin health.. How will it feel on my Skin?. C-TETRA® delivers a luxurious sensorial experience with its silky, oil-based texture that glides effortlessly across the skin. The lightweight jojoba seed oil formulation absorbs rapidly without leaving any greasy residue, making it perfect for layering beneath sunscreen and moisturiser. Many users describe the immediate skin-softening effect and subtle natural glow that appears upon application. The serum has an uplifting, refreshing citrus scent from natural grapefruit peel oil, providing an invigorating start to your morning skincare routine. The formula feels nourishing yet never heavy, leaving skin feeling comfortably hydrated and primed for the day ahead.. Who is it Suitable For?. Those entirely new to vitamin C or seeking a gentle introduction to antioxidant skincare. Sensitive skin types requiring effective anti-ageing benefits without irritation. Individuals experiencing dull, lacklustre skin tone or uneven complexion. Anyone concerned with early signs of ageing, including fine lines and loss of radiance. Skin showing visible effects of environmental damage, pollution exposure or sun-induced ageing. All skin types seeking daily antioxidant protection, from dry to combination to oily skin. Those following the CSA Philosophy (vitamin C plus Sunscreen by day, vitamin A by night). Why choose Medik8 C-TETRA®?. Our experts recommend C-TETRA® as the gold standard introduction to vitamin C skincare, offering professional-grade efficacy without the irritation often associated with traditional ascorbic acid formulations. The 100% stable formula ensures your vitamin C remains potent and effective from the very first drop to the last, up to six months after opening. Backed by independent clinical studies on sensitive skin participants, this evidence-based formulation delivers visible results whilst maintaining exceptional gentleness, making it the perfect choice for anyone seeking effective, science-led skincare solutions.