150 mg/ml Nandrolone Decanoate
50 mg/ml Nandrolone Phenylpropionate
The following study had a big influence on some products as developed by Hard Core Labs (HCL).
Because of this study our advisor (RT) developed a stable compound that contains both esters used in this study: 150 mg/ml nandrolone decanoate and 50 mg/ml nandrolone phenylpropionate, because he assumed that it would work synergistic. The results amoung users proved him right.
Pharmacokinetics and Pharmacodynamics of Nandrolone Esters in Oil Vehicle: Effects of Ester, Injection Site and Injection Volume. Minto et all, JPET 281:93–102, 1997
Exerpt from the study that explains why the Organon Company conducted this study:
This study compared the pharmacokinetics and pharmacodynamics of two currently available esters of nandrolone, the decanoate and phenylpropionate, as well as the influence of i.m. injection sites (gluteal vs. deltoid) and injection volumes (4 ml vs. 1 ml). In addition to measuring plasma nandrolone to investigate pharmacokinetics. “
Volume and Concentration
Steroid concentration in the solution greatly affects the dynamics and kinetics. In this study, some of the men received a 100 mg/ml injection of nandrolone decanoate and other men received a 100 mg injection using a 25 mg/ml solution (which means they received four milliliters, of course). Those that received the 100 mg/ml injection reached significantly higher (between 30% and 50%) plasma levels of nandrolone than those who got 100 mg via the 25 mg/ml solution. To top it off, the 100 mg/ml group’s plasma nandrolone level stayed elevated for a little bit longer; however, the length of suppression of endogenous Testosterone was almost identical.
An other remarkeble result from this study was the fact that an injection in the butt cheek gave much better results then the same amount in the deltoid (shoulder).
For more information: common sense cycling