The hair I received, not once, but twice, knotted up into a matted rats nest within 2 weeks of wear. The wefts clearly have been put together poorly with cuticles going different directions. There is nothing you can do to make them not do this. We used expensive treatments and we do take very good care of our extensions with oils, leave ins, and ALWAYS use heat protectant. We are so disappointed. When I brought this up to them they offered me a discount of 15% off my next order. Since we will not be purchasing anymore of their terrible quality hair, that offer is pointless. Stay far away!