C-Tetra

£39.00

A water-free, 100% stable Vitamin C oil serum that brightens, boosts elasticity and defends against environmental damage without ever oxidising.

Antioxidant ProtectionBrighteningFirmingAnti-Ageing

Size:

30ml

Variant

Dry·Mature

Cruelty-Free, Vegan, B Corp Certified, Made in UK

SPF 50 Face Sea & Sun Formula

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SPF 50 Face Daily Protection Formula

£29.00

Renaissance 360 Moisturiser

£80.00

Description

100% stable water-free vitamin C serum that defends against sun damage and visibly improves elasticity and firmness.

Medik8 C-Tetra is a 100% stable, water-free Vitamin C serum formulated to combat sun-induced skin damage while visibly improving elasticity and density. Powered by an advanced combination of Vitamin C and complementary skin-loving actives, this lightweight oil-based serum delivers potent antioxidant protection against environmental aggressors — brightening the complexion and helping to restore a firmer, more youthful-looking appearance over time.

Key Ingredients

Tetrahexyldecyl Ascorbate: oil-soluble Vitamin C that stays stable and never oxidises, delivering potent brightening and collagen-boosting benefits

Tocopheryl Acetate and Vitamin E: reinforce antioxidant protection and support skin resilience

Jojoba Seed Oil: lightweight, skin-compatible carrier that absorbs quickly without greasiness

Citrus Grandis Peel Oil: grapefruit-derived oil for a fresh, sensorial finish

Skindays Approved

• Water-free formula means Vitamin C stays fully active from first use to last drop
• Brightens uneven tone and supports firmer-looking skin over time
• Lightweight oil absorbs cleanly, layers well under moisturiser in the morning
• Suitable for all skin types including those targeting sun damage and dullness

How To Use

Step 1: Cleanse your face
Start by cleansing your face in the morning using your preferred cleanser. Pat dry your face with a clean towel.
Step 2: Apply the product
Take 4 drops of the product and massage it across your face, neck, and décolletage. Ensure that the product is evenly distributed across your skin.
Step 3: moisturise
Allow the product to absorb into your skin for a few minutes before applying your preferred moisturiser. This will help lock in the benefits of the product and keep your skin hydrated throughout the day.

C-Tetra

£39.00