wajji ,if you dont know what whey does and how many types of proteins are available in market and for what, dont use supplement or goto bb.com and learn them first that what ingredient does what, before using supplements you should know that what you are doing then you can decide that how much servings you need and how much workouts you should do, otherwise asking like this about supplements wont give you best results , or over dosing/ not using properly / right ingredients will make problems
so bb.com is best , ask yourself that what type of results you want and then search on the site , for better match