Travel, serums

C-Tetra® (Travel Size)

Restore radiance and fight signs of ageing with C-Tetra, a vitamin C antioxidant serum that protects against environmental stressors while brightening skin.Please Note: Product packaging shown may be different to the product received due to regional variations Key Benefits Increased Skin Youthfulness Proven to simultaneously smooth the look of fine lines and wrinkles while visibly boosting skin glow and radiance. Lightweight Nourishment This jojoba (pronounced 'huh-hoh-ba') seed oil-based formula delivers effective yet non-greasy nourishment for visibly softer and comforted skin. Brighter, More Even Complexion Proven to visibly brighten the skin tone, for a more even and healthy-looking skin appearance. Proven Results 7 days to restored skin radiance* 7 days to visibly brighter smoother skin* 96% of sensitive skins agreed C-Tetra was gentle on the skin* 4 weeks to visibly reduced wrinkles & dark spots* 90% agree skin feels instantly softer* *Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin. | Please Note: Product packaging shown may be different to the product received due to regional variations. How to Use First-time use If you're new to C-Tetra, we recommend a patch test at least 24 hours before first use. Learn how to patch test here. 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 Ingredients 7% Stabilised Vitamin C (tetrahexyldecyl ascorbate) A low-irritation form of vitamin C that delivers exceptional antioxidant protection against harmful free radical damage while supporting collagen production for a visibly even, more youthful-looking complexion. Vitamin E A powerful antioxidant that provides additional antioxidant protection against the ageing effects of free radicals. It also helps to boost the power of vitamin C for optimum visible results. View all Experts Recommended Softens visible ageing concerns while being tolerable for all. BRIDGET MARCH Digital Beauty Director - Harper's Bazaar My wrinkles have almost disappeared! TATIANA S Verified Medik8 Customer Help Products About Resources Kelly F. 🇬🇧 Verified Buyer 15/05/26 HA N. 🇺🇸 Verified Buyer 12/05/26 Maiia T. 🇺🇦 Verified Buyer 29/03/26 Catherine M. 🇬🇧 Verified Buyer 27/03/26 Yulia L. 🇺🇸 Verified Buyer 10/03/26 Svetlana Y. 🇩🇪 Verified Buyer 10/01/26