7A Indian hair is SINGLE DONOR HAIR, all cuticles are intact and the hair was collected from the root first. It is completely unprocessed and free of chemicals and artificial colors. It can undergo any process your natural hair can from flat ironing to coloring. The hair can be worn straight and wavy. The virgin hair can be reused as many times as you wish and never lose quality. You can treat this hair like it was grown from your own head.