Minoxidil Response Bottlenecks: Why Sulfation and Transport Matter (And Where Tretinoin Fits In)

What a great thread. Many thanks for posting this. What are your thoughts about the PRP therapy about hair growth?

Have a couple of questions
a. If one is starting the minoxidil journey and cannot take oral min or fin, then usually it is said to start with a combination of 5% min + 0.01% fin and then increase the concentration of fin as the time goes on. How much should be the concentration of tret for beginners?
b. In my area we can get a combination of min + fin but I am not able to find tret mixed with min + fin. Does it make sense to apply tret on the affected area and then apply this combo of min + fin?
c. Here min + fin combo is available either in the oil/serum form or in the foam form. Which one is recommended? And is one form superior than the other when it comes to results?
d. Is there impact on the shedding phase between the combination of min + fin vs min + fin + tret?