Most here will tell you that a weekly injection is best, with a few folks doing several a week to keep levels balanced. I also felt pretty "low" after a week with my BW confirming that (above). Typical dosage ranges for TRT here are from 100mg./week to 200mg./week. I think somebody is doing over 300mg./week, but he is a bit of an outlier in the TRT population. I've considered "other sourced" product as well. Time will tell. TRT really is a journey.