C Tetra Luxe Vitamin C Serum Medik8 US Amazon.com: Medik8 C Tetra Luxe Balancing Vitamin C Serum For Face Smooths Fine Lines and Wrinkles Face Serum with Squalane Vegan and Gluten Free 1.0 oz : Beauty & Personal Care The C tetra Range Medik8 INT Face Serum Medik8 C Tetra Luxe Lipid Vitamin C Enhanced Radiance Serum Makeup.ae Medik8 C Tetra Lipid Vitamin C Radiance Serum review *unsponsored* Discover the secret to radiant skin with C Tetra Luxe, our Vitamin C serum that visibly firms and brightens your complexion. Curious for more? Swipe for a glimpse of our other 5 star serums