C-Tetra® by Medik8 is a lightweight daily serum with 7% stabilised vitamin C, created to restore skin radiance, even out skin tone and protect against free radicals. The formula helps the skin look fresher, smoother and visibly more youthful, while remaining comfortable even for sensitive skin.

At the heart of the serum is tetrahexyldecyl ascorbate, a stable oil-soluble form of vitamin C with a low risk of irritation. It helps brighten uneven skin tone, reduce the appearance of fine lines and wrinkles, support collagen production and restore a healthy glow. Vitamin E strengthens antioxidant protection and helps enhance the effectiveness of vitamin C for a more visible result.

C-Tetra® has a super-light nourishing texture based on jojoba oil, absorbs quickly, leaves no greasy feeling and makes the skin soft and comfortable. The serum helps restore skin radiance in just 7 days and is ideal for those who are new to vitamin C or looking for a gentle antioxidant serum for sensitive skin.

Action of active components

• 7% Stabilised Vitamin C: a stable form of vitamin C that provides antioxidant protection, helps brighten skin tone, support collagen production and reduce the appearance of ageing signs.
• Vitamin E: a powerful antioxidant that protects the skin from free radicals and boosts the action of vitamin C for a more even, fresh and radiant-looking complexion.

Who C-Tetra® is suitable for: all skin types, including sensitive skin, especially dull tone, uneven complexion, first signs of ageing, fine lines, dark spots and the need for daily antioxidant protection.

Size: 8 ml / 30 ml

In the morning after cleansing, massage 4 drops of C-Tetra® across the face, neck and décolletage. Allow the serum to fully absorb, then apply sunscreen. We recommend using Advanced Day Ultimate Protect™.

Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.