Protinex is good health drink. I use protinex last four month.this product suggested my husband.i have weakness in my body. and tired daily life. then I use protinex powder daily with milk add one spoon of protinex powder and some suger also take two time mornimg and night after meal.after 15 days I also feel energetic and healthy.it is avilable many flavour but I use elaichi flavour.it also avilable in 400gm packing.after it open and use this product. it is close tight the container.unless it make crystel in contact with air.it oldest health supplement.it is easly avilable in health store, medical store and avilabe in online shoping website also