Medik8:C-Tetra™
Restore the look of skin radiance in just 7 days* with cult-favourite C-Tetra.
Formulated with a stabilised form of vitamin C (7%) called tetrahexyldecyl ascorbate (pronounced 'tetra-hexul-deckul as-CORR-bate'), this lightweight serum works to visibly brighten uneven skin tone and reduce the look of fine lines and wrinkles, while remaining gentle on sensitive skin.
Fortified with vitamin E, this antioxidant powerhouse also protects the skin against the ageing and damaging effects of free radicals for a more youthful and healthy-looking complexion overall. The perfect option for those who are new to vitamin C, or those with sensitive skin.
Key Benefits
Increased Skin Youthfulness
Proven to simultaneously smooth the look of fine lines and wrinkles while visibly boosting skin glow and radiance.
Professional-Grade Results
Proven to visibly brighten the skin tone, for a more even and healthy-looking skin appearance.
Lightweight Nourishment
This jojoba (pronounced 'huh-hoh-ba') seed oil-based formula delivers effective yet non-greasy nourishment for visibly softer and comforted skin.
Directions for Use
STEP 1
After cleansing in the morning, massage 4 drops across the face, neck and décolletage.
STEP 2
Leave to absorb before applying sunscreen. We recommend Advanced Day Ultimate Protect.
Key Ingredient
Ingredients
Frequently Asked Questions
Q. Why should I buy C-Tetra instead of other vitamin C serums?
A. C-Tetra uses 7% stabilised vitamin C (tetrahexyldecyl ascorbate), clinically proven to brighten skin, reduce fine lines, and improve radiance in just 7 days. Buying C-Tetra ensures you get fast, visible results safely, even on sensitive skin.
Q. How soon will I see visible results after purchasing C-Tetra?
A. Many users notice smoother, brighter, and more even-toned skin within a week. Purchasing C-Tetra gives you a serum that works quickly, helping you achieve a youthful, radiant complexion fast.
Q. Can I use C-Tetra if I have sensitive skin?
A. Yes! C-Tetra is lightweight, low-irritation, and gentle, making it ideal for sensitive skin. Buying this serum lets you experience the brightening and anti-aging benefits without discomfort or redness.
Q. Can I combine C-Tetra with my existing skincare?
A. Yes! C-Tetra pairs well with most moisturizers and sunscreens. Buying this serum allows you to enhance your current routine while achieving visible brightness, hydration, and anti-aging results.
Q. How long will one 30ml bottle last?
A. With daily morning use, one bottle lasts 4–6 weeks, giving you sustained brightening and anti-aging benefits from a single purchase.
