Emergen-C from Walmart

http://WalMart.triaddigital.com/Cough-Cold-Flu-Sponsor.aspx?c=Emergen-C&s=Alacer

Stop taking regular vitamin C! Most commercial brands of vitamin C only contain ascorbic acid — not the low-acidic, mineral-buffered form of vitamin C called mineral ascorbates that's found in Emergen-C® Vitamin C Drink Mix.