Medik8 C-Tetra Luxe Vitamin C Serum 30ml

The Medik8 C-Tetra Luxe is a concentrated vitamin C serum designed for daily use to improve skin radiance and address signs of ageing. It features a stabilised form of vitamin C called tetrahexyldecyl ascorbate at a 14% concentration, which is double the amount found in the original C-Tetra formula. This oil-soluble derivative is known for its potency and stability, allowing it to penetrate effectively without causing irritation that can sometimes occur with other vitamin C forms. The serum aims to deliver antioxidant protection against environmental stressors while promoting a more even skin tone and reducing the visibility of hyperpigmentation. The formula is clinically proven to show results within specific timeframes, with studies indicating visible brightness improvement within one hour of application and enhanced radiance after seven days of consistent use. Over four weeks, the serum works to diminish the appearance of fine lines and dark spots while strengthening the skin's natural barrier function. Its texture is described as velvety-smooth, providing deep hydration without leaving a greasy residue, making it suitable for layering under moisturiser or sunscreen during daytime routines. This serum is particularly well-suited for individuals seeking to address concerns around dullness, uneven skin tone, and early signs of ageing. Its gentle formulation makes it appropriate for most skin types, including those sensitive to traditional ascorbic acid. The 30ml bottle offers a practical size for regular daily use, typically lasting several months when applied as directed. It fits seamlessly into both morning and evening skincare regimens, working synergistically with other antioxidant and hydrating products to maintain healthy, luminous-looking skin.