BPI Cla + Carnitine Weight Loss Supplement Powder

It says list price is $49.99, where??!!
GNC has it for $29.99 and they are the most expensive place to buy supplements.

http://www.gnc.com/cla/477318.html?mrkgcl=1098&mrkgadid=3214000702&product_id=477318&flagtype=nonbrand&vendor=none&channel=ppc&adpos=1o1&creative=189757865515&device=c&matchtype=&network=g&gclid=EAIaIQobChMIy6np2Yfy3AIVA9bACh0R0gPZEAQYASABEgL1WvD_BwE

List Price <> Retail Price
List Price = MSRP

Thank you. Why don’t you just say MSRP?