The Catagen Phase is the transitional stage in the hair growth cycle that follows the Anagen Phase. During this phase, which lasts about two to three weeks, hair growth slows down, and the hair follicle begins to shrink. This process prepares the hair for eventual shedding. In the Catagen Phase, the hair strand detaches from the blood supply, leading to a decrease in the nutrients it receives. As a result, the hair stops growing and enters a resting state. This phase is crucial for the natural cycle of hair renewal, eventually leading to the Telogen Phase, where the hair is shed.