So after two years of trying to convince my parents I made them this powerpoint and it worked
by the way, I don't condone using any special "dread shampoos", I just added that in there to make a point
unfortunately, I didn't save all my sources so I'll be trying to add as many as I can throughout the day
hope this helps!
updated by @mariana-moonbeam: 02/14/15 11:28:43AM