Weird that MLB players are using Boldenone =
Equipoise; a veterinarian anabolic steroid primarily used to treat horses. Lol
From my understanding, it's similar to testosterone with a small modification making it a little less androgenic & estrogenic. But it has a long half-life (14 days) & can be detected
up to one year after a last use.
Historically, most of the anabolic steroid pops in MLB have been for
Winstrol - an oral compound extremely popular with T&F athletes, bodybuilders, powerlifters, and has a short detection window.