Before we dive into the tips for faster hair growth, it's essential to understand how hair growth works. Hair grows in cycles and has three phases: anagen, catagen, and telogen. In the anagen phase, the active growth phase, hair can continue to grow for several years. Following the anagen phase, hair enters the catagen phase, a transitional phase, and eventually the telogen phase, a resting phase where hair sheds and new hair begins to grow. On average, hair grows slowly, about half an inch per month.