I personally prefer the Dymatize Iso-100. It is a hydrolyzed whey Isolate. It contains 28g of powder per scoop and 24 out of that 28g is protein. It has about 100 cal and 1g of carbs per scoop. It is filtered to the point that there is no lactose. This stuff digests extremely fast and with no stomach issues for me. I use for bulking or cutting . I know it seems unlikely for bulking but it has such a fast digestion rate that I can easily eat a meal within 30min of my shake. It also tastes great in water or milk. I only need about 5 oz per scoop and it practically dissolves instantly. Last thing it is a bit more expensive due to higher quality but a 3lb of iso 100 is the same amount of servings as a 5lb Syntha 6 but much much higher quality and when you compare the price like that it is not much different at all. Here is a link https://www.tgbsupplements.com/searc...matize+iso-100