A method of inducing or promoting hair growth on the scalp of a subject, comprising the steps of (i) providing an ECM composition including at least one ECM material, (ii) administering inciting event means to a target location on the scalp of the subject to induce an inciting event at the target scalp location, and (iii) administering a therapeutically effective amount of said ECM composition to the target scalp location. In some embodiments, the ECM composition includes at least one additional biologically active agent.