It seems most of the brand name supplements are either concentrate or a mix of concentrate and isolate - straight isolate seems to sky rocket in prices.
My current supplier has gotten a bit expensive on the isolate, so I'm thinking of trying the NutriTech 100% Pure Whey - its the same price I was paying for isolate.
I.m.o the price of isolate is absolutely rediculous! For the price difference I accept those carbs gladly. If I were to buy isolate the only ones worth while is either from Ondier or something like Dymatise Elite from the States.
