Organic unrefined pumpkin seed oil (aka green gold) is extremely effective at reducing hair loss, promoting growth, and keeping the hair and scalp hydrated. Pumpkin seed oil's high concentration of phytoestrogens works to inhibit the activity of 5-alpha-reducatse, an enzyme that catalyzes a chain of events that shrinks the hair’s follicles, alters the cyclic phase of the hair growth cycle, and encourages hair loss and thinning. Research findings suggest that among research participants who had androgenic alopecia, those treated with pumpkin seed oil observed a 40% increase in their hair counts after 24 weeks compared to 10% in the control group. Finally, the vitamin E, squalene, and fatty acid contents of pumpkin seed oil work to keep the hair and scalp hydrated and nourished.