Human hair extensions are typical the rage today and for very good reasons. High quality virgin human hair may be expensive, but it is more like an investment because of how often times it can be reused. It hasn't been subjected to any chemical processing and therefore has its cuticle intact which makes it less prone to tangling. The primary reason extensions tangle is basically because the cuticles have been stripped off, more on that later.
Extensions are sourced from various countries in the world. The most typical types are Indian (Remy being the very best quality), Chinese (or Asian), Russian, and Latin American. Latin and Indian hair have been in high demand because they are more structurally much like Caucasian hair than Chinese hair, and cost less than Russian hair. Chinese hair strands are quite thick and need to be put through an acid wash to produce them thinner so they seem similar to Caucasian hair. Unfortunately the cuticles get removed in the act rendering it vulnerable to tangling.
Indian hair originates from the Hindu temples in India where women give their tresses to temples showing respect and gratitude with their deities. The temples consequently auction the donated ponytails to wholesalers to fund their charities.
The hair is woven into hair wefts, or obsessed about as ponytails also called "bulk hair" useful for fusion bonding, Brazilian knots, braids etc. The wholesalers, a few of whom are hair extension manufacturers sell it onto distributors and http://www.virginbrazilianhairlive.com/shop/virgin-russian-hair-weave-extensions-bundles/ retailers and it eventually ultimately ends up in salons in the West where demand because of it highest.
Latin extensions, especially Brazilian and Peruvian hair have risen in prominence recently and are thought by some to be higher quality than Indian hair. Wefts, ponytails, and wigs now claim to be made from real Brazilian hair and the sheer level of products makes one wonder where all of the hair comes from.
Brazilian women love long hair. So much so they invented their particular approach to attaching extensions - the Brazilian knot. So who amongst them could be selling their hair when all of them want longer hair? The solution I'm afraid is nobody. Brazil doesn't have a ready method of getting people prepared to donate their hair like India does. What is called Brazilian hair is generally just hair from South America including Peru.
Although Indian and Latin hair are generally structurally similar to Caucasian hair, Latin hair has a heavier density than Indian hair. Because South Americans are so ethnically diverse, a few of the curl patterns have coarse textures letting them blend well with ethnic hair.