Sebum is essential for making hair water-resistant, elastic and shiny. But if too much is produced,
it may cause significant problems: seborrhea and heavy, oily hair which gets dirty easily and has
an unpleasant odor. Many researchers say that sebum contains active androgen metabolites that
collect in the internal collar of the hair follicle and thus alter the inner epithelial sheath, which tends
to weaken the hair and cause it to fall out. That’s why it’s a good idea to wash your hair often and
not let it become oily.
Use a very gentle shampoo that’s also effective in removing sebum, together with lotions which
reduce excessive sebum production.