I'll be 51 in March, I have seriously considered it, but have been apprehensive due to the idea of replacing my bodies own natural production. I have been doing 2 workouts a day during the work-week (1 weight training workout and 1 cardio workout), eating clean, no alcohol. I had a full bloodwork panel back in October and T was in the mid 500s. The doctor I was working with suggested supplements - Tongak Ali, Maca, Zinc, boron, Dim 200, magnesium, L-Citrulline. I also take a daily 5mg cialis. I've been doing this for the last 6 months or so, and I feel like I'm in my mid-20s, early 30s. I'm planning on a follow up blood panel in March and will be interested to see what/if the supplements and continued workout and lifestyle has improved.