i've read that a lot of the human hair comes from india and is collected during a religious ceremony [hindu?]where the woman's head is shaved. then the temples sell the hair to companies.
i'm not sure of the accuracy of this information. i read it in the context of why some rabis were saying indian hair is not kosher for orthodox women to use in religious head covering wigs. [nothing to do with the quality of hair]
re remy / remi :
this is very important for good quality hair because you want all the cuticles going the same way on the hair to help prevent tangles.
my friend works in product development here:
[easiXtend]
and she could probably answer your questions about coloring extensions[after the holidays]