Primobolan is a well-known and popular steroid as well. Like nandrolone it’s most often used as a base compound for stacking with other steroids. Methenolone however, is a DHT-based steroid (actually, DHB or dihydroboldenone, the 5-alpha reduced of the milder boldenon). Meaning when it interacts with the aromatase enzyme it does not form estrogens at all. That makes it ideal for use when cutting when excess estrogen is best avoided because of its retentive effects on water and fat. Methenolone is mostly only used in such instances, or by people who are very succeptible to estrogenic side-effects, because the anabolic activity of methenolone is slightly lower than that of nandrolone, quite likely BECAUSE it is non-estrogenic.