Lol! Guys, I think it gives you boners (after injection anyhow) because it just increases blood flow- same way (kinda) that Viagra does it. You can get "flushed" and kinda warm feeling the first few injections.
I bought a 50 mg kit (5 x 10 mg vials) for $135 shipped, but that source isn't shipping to the us now all of a sudden. Sucks. But, I will load .5 mg per day for 20 days (1 x 10 mg vial) and then take .5-1.0 mg per week thereafter to maintain. So, the first vial lasts you the better part of a month and then each vial lasts about 2 months. So, the way I'm using it (lightly as I'm not competing this year, not trying to turn another ethnicity this time!) my kit will last the rest of the season and into the late fall-early winter. And, in Iowa, I'm not going to put myself through injections to look tan in winter. I got the cheaper Chinese stuff and it's been just fine imo. All the best!
Again, I want to caution about the freckles/moles etc. They do show up with this stuff! I haven't had them terrible, but I do have a mole on my nose that I never saw before. No-one else seems to notice, but stuff like that does show up and it never went away.