Finasteride worked well for me, but I started getting weaker erections so I ditched it
Nizoral works decent...slows shedding doesnt necessarily stop it. And I noticed it really only helps with high test not other compounds

If you are prone to hair loss then increased t levels will increase the shed. That increased t converting to dht is the killer. Cost me plenty of hair. For us losers you have to get that dht under control or it's going to jump in loss every time.
Nizoral 2% has helped me. It's a min help.
Minoxidil has helped me but it's a lifelong commitment. Only keeps hairs as long as you take it.
finasteride Works well holding down dht for me. No sides noticed.
dutasteride Is stronger and lowers dht even more. Some love it but it affected my drive.

I would recommend you start with something and use it on or off cycle. Your probably losing hair anyway just seeing more with elevated t.

There are a few pubmed studies on ketaconazole shampoo and its effectiveness on hair loss.

May also be effective on acne. Nizoral 2%. I pay 5 bucks generic with script per month. 4oz will last months at 2-3x per week.

Scared to use funasteride or monoxidil because they say can cause sexual disfunction and additional hair loss when stopped but I started using regenepure shampoo, not a promotion just what I use, and it works great to reduce shedding. Can't say I've regrown hair but it stays thicker than when I wasn't using it. About 50 bux for the shampoo and conditioner on amazon and it lasts several months. I use 3 days a week.

If you're predisposed to it. It's going to happen.
People say use nizoral Shampoo. I have no experience with it. Do some research on it.

Hat works too

A hat.