Medik8 C-Tetra Serum is a lightweight, antioxidant-rich vitamin C serum designed to visibly brighten the complexion while defending the skin against daily environmental stressors. Formulated with a stable, oil-soluble form of vitamin C (tetrahexyldecyl ascorbate), the serum helps to improve uneven skin tone and reduce the appearance of dark spots for a more radiant finish.

The fast-absorbing, silky texture is ideal for daily use, especially for sensitive skin types. Vitamin E works synergistically with vitamin C to nourish the skin, support hydration and help smooth the appearance of fine lines. With consistent use, skin appears brighter, softer and more supple, revealing a healthy-looking glow without irritation.

Clinically supported and gentle enough for sensitive skin, C-Tetra is an ideal entry-level vitamin C serum for those looking to enhance radiance and protect the skin barrier.

Key Benefits

• Brightens Skin Tone: Helps improve dullness and uneven pigmentation

• Antioxidant Protection: Defends against environmental stressors

• Gentle Formula: Suitable for sensitive skin

• Smooths Texture: Helps soften the look of fine lines

• Lightweight Oil-Serum: Absorbs quickly without heaviness

Specifications

• Product Type: Vitamin C Serum

• Key Ingredient: Tetrahexyldecyl Ascorbate (Vitamin C)

• Skin Type: All skin types, including sensitive

• Texture: Lightweight oil-serum

• Finish: Radiant, smooth

• Use Area: Face

• Routine Step: Serum

• Volume: 30ml