Hair (follicle) nutrition -- Making follicles healthier as they cycle (finasteride)

[BigThinker]

As I've been shedding a lot lately, likely due to finasteride treatment, I've been thinking about the nutritional aspect of hair follicle health.

My understanding is that as we inhibit our DHT, the miniaturized hairs enter "sleep" cycles/fall from our scalp, and come back (hopefully) a little bit healthier. Hair cycles slow of course, so over the source of multiple cycles of depleted DHT, the hair follicles become healthier and healthier, while the hairs themselves become thicker and darker.

So, now that I've bored you all with what you already know, here's my inquiry: are there certain nutrients that promote the health of our hair follicles? More specifically, as hair follicles are recovering from a battery of DHT, are there certain nutrients that promote faster recovery?

Currently, I'm taking (inconsistently) fish oil, biotin, and a multi-vitamin.

I'm certainly open to theories, in addition to hard facts. I just want the new, budding hair in my hairline to come back as thick and dark each cycle as it possibly can.

Thank you.