In Indian hair density -one can safely extract anywhere from 1500 to 3000 grafts in a single sitting which corresponds to 3750 to 7500 hairs on an average, this leaves another 10 percent available for extraction in the second sitting , if required, we all go by the fact that 50 percent or above loss of follicles can result in baldness visible clinically, and most of the bigger grafts bearing 2/3/4 are harvested leaving behind grafts bearing 1/2 hairs so one must be careful not to overharvest in a single sitting and cause baldness in the back, and one should never harvest follicles beyond the safe donor area as it can be subjected to thinning in future. With regular use of Kera Grow your hair remain thick as ever.