Cancers aside- and they do occur in children, strange as it sounds certain types of vehicular accidents can cause scalping. One of Jayne Mansfield"s daughters almost lost her hair in an accident...
A severe lack of nutrition is the true cause of hair loss in children. Children and teenagers need to eat protein supplied foods and more fruits and vegetables in order to prevent hair loss.
There are tons of hair gel made by different companies. Most hair gels that I know of such as Ampro have protein in them. Hair is nothing but protein. If you are using a hard hair gel, wash it out...
Hair products do not cause hair loss, but they can dry out the hair if they contain high levels of alcohol. Some cause hair color fading as well. This is why it is important to purchase professional...