Question about chemically treating hair

In My Humble Opinion
1

I am really inclined to get japanese thermal straightening done on my hair. However, I had some questions about the supposed damage done to your hair by chemical processing . . .
Are these effects truly cumulative over years? Because as your hair grows out, the new hair should not have any lingering effects of the previous treatment, correct? So let’s say I chose to straighten my hair now. In six months, when my hair has grown out and is now frizzy again, it should be “virgin” hair, correct? So if I want to straighten it again, or color it, that should be fine?

Or does even new hair somehow accumulate insults from previous treatment?

2

It’s not considered “virgin” unless your whole head is untouched. The new growth will be undamaged and not altered by the treatment to the older section of the strand. You will just be doing a “root retouch” to the three inches of new growth and not the whole strands when you go back for straightening again. If the stylist applies the straightening solution to the whole strands again, that’s when damage accumulates.

I don’t know a lot about the Japanese methods, but I understand there are more than one and not all are as gentle. Make sure you do your research and use a straightener that plays well with double processing.