Your making a smart move bro. It sucks to trash something you have already paid for but your savings in the long run are priceless.
To answer your question I don’t think nizoral shampoo is going to help hair loss to much. My understanding is it’s more for thinning and dandruff. As for rogaine I know absolutely nothing aside from can be found on Google which I’m sure you already know.
Ok let’s get to the facts. You have MPB and you have been losing hair sense your teens. So the plan is damage control you need to prolong the inevitable. Your first step is not using drugs like anavar that is a DHT derivative stay away from any DHT derivative. (anavar, winstrol, masteron) to name a few. Yes testosterone has dht conversion but it’s not as severe as using one of those.
This brings me to my next point. You know gear can cause early hairloss so what’s more important to you? Sweet sweet bulging drug enhanced muscles or the hair? If the hair was that big of a deal you wouldn’t be running gear so I’m gonna assume giving up AAS isn’t an option. So the quicker you come to terms with losing the locks the easier it’s gonna be in the long run. If. I were in your situation I’d do what I could to hold onto them without exasperating any more then necessary (no dht derivatives) use hair products and treatments that won’t risk your man hood then when it starts to look silly up there shave the nugget bald! Idk anything about hair transplant maybe that’s an option?
Just my 2¢