1-testosterone (dihydroboldenone), or DHB for short, is an anabolic steroid that has some unique properties of interest to bodybuilders. You can think of it as a dihydrotestosterone (DHT) version of equipoise. DHB is twice as anabolic as testosterone. DHB is actually very minimally androgenic, so such side effects as aggression and blood pressure are going to be lower than with other steroids. Moreover, compared to other compounds, DHB is very mild, so it does not cause major stress on the kidneys. DHB is more anabolic than testosterone, equipoise, and deca durabolin.

one of the negative aspects with DHB is the prominent post injection pain (PIP) that some users report experiencing. This occurs after injection and can feel like your muscle is very sore for up to several days. Many users claim that DHB has some thermogenic properties, similar to trenbolone, in terms of sweating and insomnia at night. On the flipside, DHB gives very nice strength gains without hurting appetite, so it can be a very nice bulker. Although it may share its name with equipoise or testosterone, users consider DHB more as trenbolone's baby brother.

1-Testosterone:
Synthetic anabolic - androgenic steroid and derivative of boldenone. A 2006 study determined that 1-testosterone has a high androgenic and anabolic potency even without being metabolized, so it can be characterized as a typical anabolic steroid.

It was legally sold online in the United States until 2005, when it was reclassified as a Schedule III drug.