Kaya Kalpa is the science of rejuvenation of the entire body. 'Kaya' means body and 'Kalpa' means transformation. It is a unique method of treating both the gross and the subtle body to prolong the youthfulness in younger people and refresh the vitality in old. It offers complete rejuvenation of the body through cell and tissue renewal and is supposed to endow an individual with longevity, memory, intellect, youth and strength of sensory and motor organs.
Kayachikitsa and rasayana are the two significant branches of ayurveda dealing with Kaya Kalpa.