Xtreme Formulations is a superior is a super protein with its sustained released micellar casein which is engineered to feed the muscle slowly which prevents muscle breakdown throughout the day or whilst sleeping scientific evidence has been proven that time released amino acids from micellar casein can last for up to 8 hours after ingestion. In fact Xtreme Formulations not only contains sustained release micellar casein but it also contains whey protein isolate which the combination of the two has been proved to stimulate protein synthesis whilst preventing muscle tissue breakdown The preferred combination of a muscle building protein would include finest top quality whey protein isolates & hydrolysed peptides in addition