Whey Protien

I have been taking protien since 1 month and I can feel the difference in my body.I have been working out since 2 years and could not see the progress as I see in just 1 month of taking Wehy protien. I had bought Unique Whey Protien 2.2 Pounds for 1200/- After that I got Classic Whey of optimum nutrition for 1430/- Before buying protien always see the ingredient tab.I take one scoop of whey protien after workout and also in the evening.