Hair Growth ⨙ Follicle Cycle Hair is a remarkable feature of the human body, constantly undergoing a natural cycle of growth and renewal. This cycle can be broken down into four key phases, each with its unique role: Anagen Phase (Growth): This is when hair actively grows from its roots. This phase can last years, with hair growing a few millimetres each month. Catagen Phase (Transition): Following the growth spurt, hair enters a brief transitional phase where it prepares to rest. This lasts for