Anadur (nandrolone hexylphenylpropionate) has a longer half life than Deca Durabolin (nandrolone decanoate). The claim that aromatization is less than with Deca Durabolin is unlikely to be correct. Because of the longer half life, for the same dose, there will be less drug in the blood during the first few weeks of use, thus creating this illusion. If blood nandrolone levels are the same, giving comparable effectiveness, rate of aromatization would be the same with Anadur or Deca.