1-testosterone (dihydroboldenone), or DHB for short, is an anabolic steroid that has some unique properties of interest to bodybuilders.
Interestingly, in spite of the fact that the name can be confusing, in no way is DHB testosterone.
In fact, it is simply the 5alpha reduced form of Equipoise (boldenone), which acts in a completely different way.
Therefore, you can think of it as a dihydrotestosterone (DHT) version of equipoise.
Chemical name: 17beta-hydroxyandrost-1-en-3-one, 5alpha-androst-1-en-3-one, 17beta-ol