Diplomas, certificate courses, etc are offered by different organisations. You can opt for the programs by International Association of Colour. Vocational Training Charitable Trust also has certificate and diploma courses. Certificate courses last for three months to a year, while diploma courses last for up to two years. If you have qualifications in human anatomy, physiology or biology, it can be helpful while applying for the courses.

You can also take further training programs to renew and enhance your qualifications. You will also be interested in other therapies like aromatherapy, Reiki, etc.