In case of Brotzu you may be right, nobody knows for sure. Nontheless I cannot believe that he is telling us lies. This is not snake oil. Definetely not snake oil.
The question is how efficient is it?
But if you compare Shiseido with topical finasteride, I would choose Shiseido. I dont take finasteride... I would maybe take it If I go back in 2012 but Definetely not now. I dont play with my hormones. I don't want to hear something about only a few get sides... But if you get sides they could be permanent and then my dear friends you are fucked. If you havent started, don't take it! We are very close to 2018. Does nit make sense to start with finasteride today....