Medik8 - C-Tetra Advanced - Vitamin C Serum

About this product

Defend against premature skin ageing and achieve accelerated skin brightening with a next-generation combination of 20% vitamin C and skin barrier science. Clinically proven to brighten skin and visibly improve wrinkles in 7 days [1] with 0% barrier disruption [1], C-Tetra Advanced is engineered for high-performance visible brightening, skin smoothing, and daily antioxidant defence. This intelligent ingredient complex combines potent, stabilised, 20% vitamin C with restorative phyto exosomes for deep, controlled delivery, and omni-antioxidant acetyl zingerone to neutralise the ageing effects of free radicals.[1] Proven via independent clinical study conducted over 4 weeks on 32 participants.