I got away with concealer for a good ten years until I
got a bad batch of prothik, which one day, dissolved
whatever real hair I had left on the top of my head.

I used them all: Couvre, Derm (whatever), The Ron Propeil
product (GL ?) .... You name it .... The canned sprays available never
have the consistency from one batch to another ... so the dark brown
you spray on your dark or medium brown hair, will come out copper .
or worse still .... this dusty, sandy stuff that they put in to give the
sprayed hair bulk.

Am I grateful for the sprays and concealers? Definitely ... Because
this was way before Toplace showed up and the only option was
the hair clubs .... and dropping ten grand a year on my hair was not
a viable option. Are they messy? Certainly are! Everything in my
apartment would get covered with that dark soot ... My pillows,
shirts .... If you scratched your head, you'd have dirty fingernails ....

And letting a girl run her fingers through your shellacked head ??? ....
FORGETABOUT IT !!!

You have to weigh the options. Shaving my head back then wasn't
'IN' like it is today ... (of course, you have to have an attractive
dome underneath to get away with that look ... ).