Where do you live?! I have to go to the center of the Universe to find ORS Lye
OP: I lightly based my scalp and left that relaxer on for like 30 minutes and it didn't burn. Don't scream, half an hour of relaxer and my hair is beyond underprocessed. Everyone's different though, my scalp is strong I guess? lol.
Anyway... if you can't find it at a local store, try Amazon