A few strands of my own hair came out when I removed them. Have I damaged it?
No. Without noticing, every day we lose between 50 to 100 strands of our own hair as part of the process of renewal and growth. However, where the extension is attached, hair that would otherwise fall out is trapped and held in place by the extension. So, when you remove the extension at the end of your 3 month period of wear, you may notice one or two of these hairs coming out. This is simply hair that would have fallen out during the renewal process over the previous few months.
w850
See 43 more hair extensions FAQ's