Medik8 C-Tetra Vitamin C Face Serum with Squalane — 1.0 fl oz lightweight antioxidant hydration

Medik8 C-Tetra is a lightweight, stabilized vitamin C face serum combined with squalane to deliver antioxidant support and gentle hydration for daily use.

This daily facial serum blends a stabilized form of vitamin C with vitamin E and squalane in a quick-absorbing, vegan formula built for layering under moisturizer and SPF. Designed by Medik8 scientists, the serum aims to help skin appear smoother and more even-textured while providing lightweight moisture without leaving a heavy residue. Its fast-absorbing texture makes it suitable for morning routines and a variety of skin types that want antioxidant protection without greasiness.

How will this serum fit into my morning routine?

Apply to cleansed skin before moisturizer and sunscreen; its lightweight consistency is formulated to layer without pilling. Because it absorbs rapidly, you can follow with other treatments or SPF shortly after application.

• Use 1–2 drops for the face and neck after cleansing.
• Allow 30–60 seconds to absorb before moisturizer or SPF.
• Works under makeup without adding unwanted shine.

What key ingredients are in the formula and why they matter?

The serum features a stabilized vitamin C derivative alongside vitamin E and squalane to deliver antioxidant support and replenishing hydration. These ingredients are chosen for compatibility with daily layering and for providing moisture without a heavy feel.

• Stabilized vitamin C — supports skin brightness and even appearance.
• Vitamin E — complements antioxidant activity and skin comfort.
• Squalane — lightweight moisturizing emollient that leaves skin soft, not greasy.

Who should use Medik8 C-Tetra and what skin types suit it best?

The serum is designed for people seeking daily antioxidant protection and lightweight hydration; it’s formulated to suit a broad range of skin types, including normal, combination, and those who prefer non-greasy textures. Sensitive skin users should patch-test new actives to ensure compatibility.

• Ideal for daytime use under sunscreen and makeup.
• Good choice for combination or oily skin due to lightweight squalane base.
• Suitable for those wanting a vegan, fast-absorbing vitamin C option.

How quickly will I notice changes, and how should I expect to use it long-term?

Visible changes vary by person; some notice improved skin texture and hydration within weeks, while antioxidant benefits build with consistent daily use. Incorporate it as a staple morning step for gradual improvement in skin appearance over months.

• Apply daily in the morning for ongoing antioxidant support.
• Consistent use supports longer-term texture and appearance benefits.
• Store out of direct heat and use within the product’s recommended timeframe for best potency.

Who this is for: Medik8 C-Tetra Vitamin C Face Serum with Squalane is aimed at anyone wanting a science-led, vegan daytime serum that pairs a stabilized vitamin C derivative with vitamin E and hydrating squalane. It’s especially well suited to people who want antioxidant protection and subtle hydration in a fast-absorbing formula that layers easily under moisturizers and SPF.

Ingredients

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