I did. I got mine from a veterinarian suppy store online. The ones that come up when you google are fine. Vallvet and such…
The thing is, 1., the first shot I gave myself was great because I was clearly deficient as I felt a boost of energy and well being, however, all subsequent injections I have felt NOTHING. That’s ok because I’m moving on to other things.
- I injected myself in the quad and I injured the muscle tissue from being inexperienced with needles. The injury got worse when I decided sprint on it.
See the body was not designed to be punchered with needles (any size), let alone injecting a substance into it that tears the muscle even more. (I’m still injured by the way as I’m sprinting at about 90% and I feel a sharp pain when it’s my injected quads turn to fire. After a good warm up, the pain does subdue but it’s not 100% healed.)
So my advice: use a small gauge needle, inject right under the skin instead of intramuscular if you can, and use a site that does not see all the violent forces of sprinting.