SILX are fine strands of synthetic silk tied to a single strand of hair. They’re available in a variety of colors and last for weeks or even months until the strand of hair naturally sheds. SILX are made of a material specifically designed to hold up to daily washing, brushing, and styling (even heat styling!) without change. You can curl, straighten, blow dry and even color your hair with SILX in and they will not melt or discolor.