mg per mg, nandrolone, either deca or npp would be much stronger. It wold also be a much better option for those with possible hairloss problems. deca and npp could easily be found in 200 or 300mg a ml, requiring less injections. primo would mean more injections as most but few are 100mg/ml. Personally, primo would never be an option for me since I don't like the bald look