Trial and error, I think.
I didn't know if aphogee would be good or bad, I just knew I was porous, highlighted and lowlighted, and had wimpy curls.
So I tried it.
It's just hair-it'll recover eventually.
<---me after my latest hair experiment.
"It's a wonder God suffers so many fools, what with lightening so cheap"~Mark Twain
Lady Eklecktika Fidens of Caduceus