Natural Treatments for Hair Loss Onion Juice. 1/15. The idea is that the sulfur in onion juice helps hair regrowth. ... Iron. 2/15. This crucial nutrient helps your body make blood, and low levels of it are linked to hair loss. ... Biotin. 3/15. ... Zinc. 4/15. ... Saw Palmetto. 5/15. ... Aromatherapy. 6/15. ... Silicon. 7/15. ... Selenium. 8/15. More items... Jun 26, 2022