Deca, more popularly known as Deca Durabolin and Nandrolone Decanoate, is testosterone derivative. It was manufactured back in 1960’s. Compared to testosterone, it has slightly higher anabolic properties. When androgenic property is compared with other anabolic steroids, it is considered very mild in nature due to only 37 androgenic ratios. Nandrolone attaches to slow acting Decanoate ester. It wa..