Boldenone is an anabolic steroid. Anabolic steroids produce enhanced appetite, increased muscle mass and, to some extent, masculinization. The activity of boldenone is highly anabolic, with only low to moderate androgenic potency. It is likewise an efficient builder of muscle tissue, although is much less apt to produce androgenic side effects (oily skin, acne, hair loss, body/facial hair growth) compared to an androgen such as testosterone.

Boldenone will increase nitrogen retention, protein synthesis, increases appetite and stimulates the release of Erythropoietin in the kidneys. The drug is commonly used in doping within bodybuilding, even though this use is illegal. If intended to assist in bodybuilding, the drug is taken as part of a steroid stack of other anabolic steroids, usually with a potent androgen like testosterone as the 'base' of the stack.

Boldenone has a low rate of aromatization (about 50% of Testosterone), which means it does not convert to estrogen easily and does not cause very much water retention. Many Bodybuilders will find that it is a good replacement drug for Nandrolone.

Side effects
Boldenone has many of the common side effects associated with anabolic steroids. However, because it is not a very potent androgen, side effects are usually minimal. This is not a blanket-statement and depends on dosages and individual tolerances. Supression of the HPTA, water retention, possible increase in acne and possible conversion to estrogen , high blood pressure and DHT conversion are all side effects associated with Boldenone.