Nadia, I agree that the problem about miniaturization of newly implanted hairs and donor area hairs is the least serious of the problems. There might be ways to prevent continued miniaturization. I'm just saying that miniaturization will continue even after you get Tsuji's treatment so you will have to do something to solve that problem. For many people, finasteride will be enough but some people can't take finasteride. So keep in mind that finasteride will not solve the problem for everyone. Now Replicel injections might also protect your newly created hair after you get the Tsuji treatment. We don't know yet but it might work.
This is not the biggest problem because there may be solutions to that problem.
The biggest problem is definitely the INDUCTIVITY/FUNCTIONALITY problem. Here is the quote where Team Tsuji says it's the biggest problem:
Mr. Toyoshima: "as I mentioned earlier, we consider the development of the technology to culture epithelial stem cells as the most significant issue we face. In order to regenerate a clinically effective number of follicles, a sufficient number of cells need to be secured while satisfying the safety and functional requirements. These are tough challenges, so also pose major issues to us."
I know that at the level of the scalp, Tsuji must reproduce 3 levels of skin according to what my dermato explained to me. And he said it was very difficult. That's why he was not sure that tsuji would succeed