I have been using a daily pea sized blob of Testogel for 2 years. Before starting my T level was only 0.7 which Prof Studd told me was very low.
I recently had bloods done and my GP was concerned that my T level was 19! Now, I didn't actually get to read my results and I wonder if my T level was actually 1.9?
Anyway, the only androgenic symptoms I have are that my forearms are more hairy, because I apply the gel to the underside of my forearms. Prof Studd's nurse told me this would happen, and I simply get my forearms waxed every 6 weeks.
Otherwise my libido hasn't changed too much but I find it much easier to orgasm and my response is much stronger.