Posted - 13/3/2021 7:27:02 Hello everyone: I bought this herb Shou Gong San (Harvest the Training Power) from this website here. I am wondering if anyone has had any interaction with these ingredients and could advise me when to take this for a workout. Is it possible to use it in between sets (during a break in the workout) or should I use it as instructed at the end of the workout.