I need some suggestion here, hope I could get some right here. Apparently, I never thought of gaining weight but only drinking the supplementary to recover my muscles in a shorter time and also to boost up my performance during the work up.. So what kind of supplement should I have? And where could I get them without paying some extra? But the exact price of those supplementaries?

Apparent height 174cm, 80kg

I doesn't have a proper diet, that is why I'm looking for supplementaries. I workout around 4 to 5 days perweek, each day 2hours, 1hour on weight lifting and another on cardio. I'm trying to put down my weight until 75kg just to burns my fats