25M Seeking Advice on Hair Regrowth Treatments and Options

25M. So I have been doing a buzz cut at first, and shaving my head for some time now, started even before I noticed much baldness happening, did it for the love of the game at first but now my hair is to thin at the top for me to even try and regrow, I let it for 5 days max, and then I just end up shaving again.
So the things I can get my hands on over here are:
ketoconazole 2% shampoo
5% Minoxidil topical
5% Minoxidil and 0.015% Tretinoin (this might be more effective, but I do not know the price compered to just 5%Min, and if it would be justified)
dutasterid 0.5mg (I could get this OTC)

Also I could order RU58841 from China and make my solution.

The ketoconazole shampoo and topical Minoxidil is a no brainer to start running, but Dutastreid or Fin are kinda a bit to risky for me.
Dut seems like a better option, 3x week 0.5mg?

The main reason why I want to regrow my hair is that I am under 15% BF right now, close to 10% soon, I do bodybilding just for the hoby, I am natural and have always been. I became so vascular in this BF % that my head is just a complete covered in veins, it actually bothers me now. I feel like the hair would cover 80% of that and I would look much better.

Welcome to any and all advice.

Ketoconazole shampoo and 5% min are good choices. Consider adding tretinoin for better min absorption if you can assess cost-effectiveness. Dut is stronger than fin but might be riskier if you’re concerned about side effects, so stick with topicals if you prefer avoiding systemic effects. RU58841 can be an alternative for DHT reduction. Keep your buzz cut while trying treatment and evaluate results over time. Check out the The Beginner’s Guide for more info.