2 citations,
December 2014 in “Research & Reviews: Journal of Pharmacy and Pharmaceutical Sciences” Carrot extract in gel form may help hair grow better.
Two nutritional supplements improved hair growth and reduced hair loss in women with hair loss conditions.
February 2014 in “Medicine - Programa De Formación Médica Continuada Acreditado” The document concludes that non-scarring alopecias can be reversed, but scarring alopecias cause permanent hair loss.
Female hair loss is often hereditary and can be treated with medication, hair transplants, and lasers.