“Remy” refers to the alignment of the hair cuticle, or the outermost layer of the hair shaft. … It’s 100% human hair, which usually comes from donors ranging from one single donor to a small few, cut or shaved straight from the scalp. Because it’s real hair, it’s safe to wash, dye, cut, and styled like natural hair.
Remy hair is considered the finest quality of human hair since the cuticles are kept intact unlike most other non-remy hair extensions. … In contrast, Remy human hair is collected through a method in which the hair strands are completely aligned in the natural direction as it grew.