Medik8 USA C Tetra Medik8 US Medik8 C Tetra Serum Glossybox Bright skin starts with brilliant science. Our vitamin C serums are expertly formulated to deliver powerful antioxidant protection while supporting a visibly smoother, more radiant complexion. Pair with Medik8 C Tetra Serum 30 ml Not all Vitamin C serums are created equal Let's talk about two powerful options from Medik8: C Tetra and C Tetra Advanced. C Tetra is the perfect entry level Vitamin C serum, formulated with Medik8 C Tetra Vitamin C Serums Reviewed By a Beauty Editor Who What Wear