Primobolan will also not aromatize, so estrogen related side effects are of no concern. This is very useful when leading up to a bodybuilding contest, as subcutaneous water retention (due to estrogen) can seriously lessen the look of hardness and definition to the muscles. Non-aromatizing steroids are therefore indispensable to the competitor, helping to bring about a tight, solid build the weeks leading up to a show. And of course without excess estrogen there is little chance of the athlete developing gynecomastia. Likewise there should never be a need for antiestrogen use with this steroid. Primobolan® is also said to have a low impact on endogenous testosterone production. Although this may well be true in small clinical doses, it will not hold true for the bodybuilder. For example, in one stud more than half of the patients receiving only 30-45 mg noted a suppression of gonadotropin levels of 15% to 65% a. This is a dose far less than most bodybuilders would use, and no doubt increasing it would only lead to worse suppression. Primobolan is considered a fairly weak steroid. Its anabolic/androgenic ratings are low and it’s one of the weakest steroids on paper; though, it is stronger than masteron. Since masteron is always related to cutting cycles, on paper primo should gain credibility as a cutting steroid. Primobolan is an oral anabolic steroid that is a little unique compared to many oral anabolic steroids. Before we go any further, it’s important we distinguish the difference between Primobolan and Primobolan Depot. Primobolan Depot is an injectable version of the hormone that is attached to the large/long Enanthate ester. Primobolan is comprised of the same active steroidal hormone in Methenolone; however, it is attached to the small/short Acetate ester and designed for oral administration. 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. Because it is a widely available steroid its often used as a replacement for nandrolone or boldenone to those who have no access to Deca-Durabolin or Laurabolin or Equipoise. When stacked with a heavy mass steroid like testosterone and/or methandrostenolone it can deliver almost similar gains. Those seeking to cut will most likely be very pleased stacking it with drostanolone, stanozolol or trenbolone. Women and beginners also stack methenolone WITH nandrolone because this gives a mildly anabolic stack that is generally regarded as one of the safer stacks around in an androgenic perspective. But alas, with the nandrolone, also a very suppressive stack. Test 600x The Methenolone hormone was first released in 1962 by Squibb in both the oral Acetate and injectable Enanthate form. The hormonal compounds both carried the Nibal name, Nibal and Nibal Depot, but were very short lived products. In the mid-1960’s the giant German pharmaceutical company Schering would obtain the rights to the Methenolone hormone introducing it under the Primobolan name. Since that time, Primobolan has been well-known for being a European anabolic steroid. It has never been manufactured in the U.S. since the Squibb versions. An interesting note regarding the Methenolone Acetate compound, while primarily an oral steroid, Schering did manufacture it as an injectable at one time. However, the injectable version was discontinued in 1993. Any injectable Acetate form will strictly be found through underground labs, but even then it will be rare. Most underground labs that manufacture the Acetate version will do so in oral form. Many, however, simply stick the large injectable Depot version. Primobolan is considered one of the safest anabolic steroids on the market and it carries an excellent safety rating to back this claim. In fact, this steroid has been used successfully to treat underweight children and premature infants without damage. It is also prescribed for osteoporosis and sarcopenia. However, the primary purpose of Primobolan is treating muscle wasting diseases and prolonged exposure to corticoid hormones. It has also proven to be extremely effective in treating malnutrition.