Product? You mean tonic? If you are a novice, you should pay attention to exercise and diet. Tonics are only used as an aid. In my own words, I am currently using protein powder as a supplement to protein. Then I will drink a little levorotatory liquid before training, and then bcaa will prevent muscle decomposition during training. I'm currently on a diet. Of course, ordinary people don't have to take these supplements. If the economic conditions are average, it will be better to spend money on diet.