Medicines and Healthcare Product Regulatory Agency (MHRA), United Kingdom: https://www.mhra.gov.uk/. is the official medical regulatory body in Britain.
Food and Drug Administration (FDA), United States: https://www.fda.gov/. is the medical regulatory institution in the States.
American Hair Loss Association, United States of America: https://www.americanhairloss.org/. This association is the only national, consumer organization, dedicated to educating the people, health practitioners, tv and radio about hair fall.