Biotin and selenium helped me. I was told to take centrum silver because it contains these and it helped. I also used Nioxin products to help it grow back.

I lost a lot of hair on depakote/lithium/lamictal combo and then later from lithium toxicity and undiagnosed hypothyroidism.

It did grow back. My hair has always been and still is curly so can't help you there I'm afraid.