Virgin Remy hair will shed a little, for it is wefted by hand or by a standard sewing machine operated by a human so there is greater room for error.
There are two types of hairs in remy hair: virgin remy hair and non-virgin remy hair. Virgin hair has never been treated with chemical product. The manufacturers seldom treat the hair from original donor to keep the texture natural. However, they will perm, dye or straighten the non-virgin hair to make it change the color or style of the hair for people of different need. You can also dye it into different color or perm it after buying it or sewing in your hair.