it’s unnatural for new 100% human hair to tangle up when you have barely used it. When you are purchasing and want to know whether it’s real, run your hands through the bundles from top to bottom.

"The rising popularity of human hair wigs and extensions ... stems from their natural appearance, versatility, and durability ...

If a vendor asks you what color of hair you want, then that is a sign it is not real. Human hair comes in the natural color, which is either black or brown. You can always dye it later if you want ...