Sebum??!

[Bball121212]

hey everyone,

Been on fin for about seven months and currently using regenpure and Revita every other day. Not seeing great results but staying positive. I am starting to get these white balls on the end of my hair. I can like scrape it off and it's waxy. From reading online I can guess it's called sebum?? Nothin really explains what it is and if it's harmful. Has anyone had this, is it harmful, and how do I stop it?