Clan, I'm gonna go with Keratene. Been emailing the company and I specifically said I would be using KaR because fin gives me gyno. They told me, rather, they ASSURED me that Keratene leaves estrogen levels unchanged and will not contribute to gyno. I think they're just a really small company without much money to provide all the trials of a giant like Histogen or Replicel. I've talked to people who were in the trial that they did do, and those people are sticking with it and some are even suggesting that regrowth is a possibility, only the company is too afraid to claim regrowth because of the liability issues that would result. I'm giving it 6 months in conjunction with Capillogain. Worst case scenario, I lose 6 months worth of hair. I'll keep you updated.