A method for increasing muscular volume of a muscle in a human is provided.The methodcomprises injecting a composition comprising hyaluronic acid (HA) into one ormore thanone location of a muscle, thereby increasing the muscular volume as comparedto before theinjection. The muscle may be an arm, leg, chest, back or buttock muscle, orany otherdesired muscle. A method for altering a contour of a muscle in a human is alsoprovided,which comprises obtaining an image of the contour of the muscle, determining anewcontour, injecting an HA composition into one or more than one location of themuscle toobtain the new contour, thereby altering the contour as compared to before theinjection. Ause of a composition comprising HA for increasing muscular volume of a musclein ahuman is also provided, where the composition is for injection into muscle.
