topical spironolactone or nizoral inhibit dht bonding to androgen receptors. 1% nizoral is as good as 2%, but spironolactone is stronger. if you read the recent threads you will find how to get spironolactone easily. fluridil is supposed to be much stronger than spironolactone, but i'm still waiting on my box, and other users question it because the only study was done by the people who make it.
you can also try added topical finasteride to your regimen to up the scalp dose. i posted directions in the experiment section. it is possible that uv speed up damage that is already happening. you could wear a hat, which would cover the hair too and keep your skin more youthful.
there is even some speculation that emu oil can grow hair, but since it did only a little better than corn oil, i think the fatty acids in borage seed oil are more responsible for the growth.
I think you already mentioned copper peptides in your regimen. I really don't know what works and what does not.