A beard on weft hair extensions is a small strip of hair that is left attached to the weft when the hair is sewn or bonded onto it. A beard is typically found on the back of the weft, on the side that will be closest to the scalp when the extensions are installed. A beard helps to camouflage the weft. The presence of a beard makes the weft look more like natural hair for a more seamless look. A beard can also add protection to the weft, reducing the risk of tangling by preventing the weft from slipping.