OstroVit - Histidine is an amino acid...
100% Platinum Casein MuscleTech is a high quality supplement containing micellar casein, which provides sustained release of amino acids into the blood.
Dymatize Elite Casein provides 24 grams of slow digesting casein per serving.
With 23 grams of slow release casein protein per serving, Pro Nutrition 100% Casein gives your muscles everything they need to build new muscle tissue.