The concept of Rasayana Chikilsa is believed to have originated from Vedic hymns which explain the guidelines for rejuvenation and regeneration of dhatus, longevity, mental well-being, immunity, eternal transformation and healthy living.

Rasa means essence and in this context it stands for the essence of food we consume. Ayana or channels carry out the function of transporting this essence. The proper functioning of ayanas is necessary to adequately nourish our body. Rasayana Chikilsa or Rejuvenation Therapy helps in this process and revitalizes the cells and tissues of the body to bring about harmony of the body, mind and soul. Rasayana Chikilsa is particularly effectual in reducing the signs of ageing.

Contrary to common interpretation, this branch is not just limited to drug therapy and includes codes of conduct for controlling the senses and describes several procedures, rejuvenative recipes, dietary regimen etc.

Classification

Rasayana Chikilsa can be broadly divided into two:

  • Kamya Rasayana 
  • Naimittika Rasayana

Kamya Rasayana helps in improving and maintaining the physical and mental health of a healthy individual. There are three classifications under this:

  • Pranakamya - (Promoter of life's vitality and longevity) 
  • Medhakamya - (Promoter of Higher mental faculty) 
  • Srikamy - (Promoter of complexion and luster)

Naimittika Rasayana deals with curing specific diseases and restoring the body’s vitality through various procedures. Depending on the place where the treatment is carried out, Naimittika Rasayana can be divided into two:

  • Vathatpika Rasayana - (Outdoor therapy) 
  • Kutipravesika Rasayana - (Indoor therapy)

As per diet and lifestyle, there are three types of Naimittika Rasayana:

  • Ausadha Rasayana - (Drug Rasayana) 
  • Ahara Rasayana - (Dietary Rasayana) 
  • Achara Rasayana - (Lifestyle Rasayana)

Vathatapika Rasayana
In this case, there are no rigorous treatment procedures involved and the patient s can continue with their routine practices while undergoing the therapy.

Kuti Praveshika Rasayana
Kuti Praveshika Rasayana is a type of Rasayana treatment for slowing down the ageing process and reinvigorating the body. During the treatment, the patients will be under the observation of a specialist and have to follow a strict daily routine.

The role of Rasayana Chikilsa is very significant even today. Many drugs and medicines prescribed in Ayurvedic texts have proved to give better prognosis for the treatment of cancer, AIDS, Alzheimer’s disease, Parkinson’s disease, heart diseases etc.