Okay, Interesting...

asuming that a person's hair isn't coloured ( or that they don't care that much about colour) and are worried about what damages might be caused to the hair, is sodium thiosufate what they should/could use to neautralize the sanitizers on a regular basis?
( could this be used on kids' hair?)

where can a person purchase sodium thiosufate ? ( is this dry or liquid?)
How would this be applied... mixed up with water or does it need some other base or activator to work?

Thanks for the info