What's the difference between virgin hair & remy hair

What's the Difference Between Virgin Hair & Remy Hair https://www.sishair.com/ Virgin hair and remy hair both are 100% natural human hair. The difference is that the donor of remy hair used to dye, perm or bleach his or her hair while the donor of virgin hair doesn't use any chemical products. And remy hair needs to be rearranged but virgin hair always comes as it is. Virgin hair is more precious and expensive, and it's the best product among all the hair extensions.

But both of the virgin and remy hairs are smooth, healthy with perfect shape and quality.