Anadur (nandrolone hexylphenylpropionate) has a longer half life than Deca Durabolin(Muscle powder 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 Muscle powder Deca.
This is true for all claims made for varying rates of aromatization according to ester. I do not think such claims are ever correct given equal blood levels of drug, and they certainly are not substantiated in the scientific literature.
The claim that 50-100 mg Anadur per 10 days will normally result in no virilization symptoms for women will be over-optimistic for many female users. Only a few weeks of such use will result in some irreversible virilization for some women. This is true for substantial doses of any anabolic steroid. If a drug is an agonist (activator) of the androgen receptor it will have virilization activity if given at a high enough dose. That dose will vary according to the individual’s susceptibility, and according to the specific tissue.