What is Indian remy human hair?

It is premium quality hair from India that is used mostly for hair extensions.

In Remy hair, the cuticles on all the strands of hair are aligned in the same direction. This reduces friction between the strands thus reducing the tangling in the hair. Remy hair appears more healthy, soft and silky.

To test this, slide your fingers on the hair from the root of the hair to the tip. It must glide smoothly between your fingers. However, if you try sliding from the tip to the root, you'll feel a lot of friction. This also happens with natural human hair. This is because, the cuticle layers are aligned and hence can slide smoothly.