While some causes of hair loss are inevitable – like genetics and aging – hair that’s fallen out as a consequence of iron overload doesn’t have to be permanent! Now that you’re getting your iron levels under control, your organs, hormones, and body functions are recovering – and you can grow your hair back. There are four main approaches to cultivating a big head of hair. If you’ve lost your hair, you’ll want to hit on all 4 of these approaches to see the best effects.