My question is what have your children been exposed to and share in common? Vaccines? mold, toxins, exposure to pesticides,nutritional deficiencies, dental toxins, even parasites?.   All these things and more should be considered to get to the root cause of  your children's hair loss issues.   When the immune system is under attack something is causing it..question is how do you find out which of the problems mentioned above is responsible? Now there is new research and technology that can help identify the root causes of hair loss and underlying conditions linked to this problem. If you want more information on this matter please let me know.