DecaBolinÂ® is orally active, extremely powerful and rounds out Hi-Tech's Pro Anabolic line, offering the only legal â€œNandroloneâ€ precursor on the market. DecaBolinÂ® converts at a high rate to its target hormone Nandrolone and is better than testosterone for building mass and strength as it produces fewer side effects. It's effectiveness at the androgen receptor of muscle tissue is superior to that of testosterone. Nandrolone (â€œDecaâ€) is prized as the perfect anabolic compound. DecaBolinÂ® â€” 19-NorAndrost-4-ene-3b-ol, 17-one Decanoate â€” is the only product of its kind still legal to convert to â€œDecaâ€ in the body. Even more important is that DecaBolinÂ® cannot directly aromatize to estrogen nor does convert to DHT or its derivatives, making it highly potent, completely non-aromatizable to estrogen and naturally occurring.