Sanderson Ester-Plex Vitamin C 1300mg 200 TabletsHi Dose Vitamin C TabletsEster Vitamin C24 Hours Immune System SupportSANDERSON™ Ester-Plex® 1300mg is a very high strength, easy to swallow vitamin C which contains the same natural metabolites as our chewable product to ensure optimum bio-availabili..