So I have been lurking here for awhile, coveting all of your pink fabulousness, and I have been reading through the bleaching tutorials and FAQ, and also watching bleaching tutorials on youtube, however I am slightly confused. Here, in the awesome bleaching FAQ the professional colorist seems to really stress the safety issue of not getting off the scalp bleach (which I'm assuming is the most common type) on your scalp, and even says getting it on your scalp can cause chemical damage that can make your hair never grow back in places.
Thats REALLY scarry,
I have been blonde before, from a very dark brown (level 2) natural hair, and the colorist put the bleach on my hair first, and then all over my roots because the heat from your scalp causes the bleach on the roots she said to develop faster, resulting in something she referred to as "hot roots". She said it would look odd if she did the roots at the same time because the roots would be lighter than the rest of my hair. She never said anything about the reason being that my hair may potentially fall out from getting bleach on my scalp! All of the videos I see (on youtube) show it being done similarly to the experience I had (some by colorists at salons and some by novices) , where the person just applies the bleach mixture all over the hair first and then to the roots (and scalp) last, for the least amount of time.
Im pretty certain all of these people in the videos arent using "on the scalp" bleach. To be honest I don't think I have ever even seen that type of bleach in the sallys where I go. Have any of you used "on the scalp" bleach? If so, does it work just as well? Also, if you just use regular (off the scalp) bleach for your roots, do you just leave it for a shorter time where it touches your scalp? Has it ever made any of your hair grow thinner ,or not at all in certain places? I'm also wondering if any of you use two different kinds of bleach just to be safe, like one for the roots/scalp, and one for the rest? I'd love to hear some experiences, and to know what you prefer. I really want my roots to match the rest of my head, not be darker. (or lighter for that matter)
*also as a side note, I have dyed red hair now, can I just bleach over this?, or would that be too damaging and cause breakage?