Quality
The quality of the hair is often specified.
Virgin hair indicates that the hair hasn't been coloured or
processed in any way.
The "virgin hair" is collected by tying
off the hair to maintain the direction of the cuticle and then
cut. After the hair is cut and collected it can be sewn on a
weft, pre-bonded, made into wigs or left in bulk form.
Remy is a term used when all of the hair is human plus when
'close to' all of the strands (e.g. in one weft) are strictly
organised with the roots in one direction and the tip to the
opposite end. Remy hair in general last much longer than non-remi
and tends to stay shiny and "tangle free" longer. This is based
on the fact that every strand of hair is biologically
keratinized skin cells organized in layers overlapping one
another.