This involves the use of colour or coloured light as a form of healing. Diagnosis may take a variety of forms, including examination of the colours in the client's 'aura' - a large, egg-like radiation of energies that is believed by many to emanate from the body. An unhealthy body is said to give out an unbalanced pattern of vibrations, often seen as dark, muddy colours or aggressively jagged lines of colour. The colour therapist works to restore harmony. For instance, if a person complains of tiredness or a lack of energy, the colour therapist may prescribe 'bathing' for a short period of time in a strong red light, to promote vitality and stimulate blood-flow.

It is well known that colours have different effects on the personality and behaviour - for instance pink pacifies and is sometimes used in prison cells or police cells to quell tempers. Blue soothes and promotes reflection, whilst orange tends to enliven and cheer. Some colour therapists advocate wearing specific colours for specific purposes, and will advise on using colour in decorating the home or office.

Notes: Can be used for almost any disorder, in conjunction with orthodox medical treatment, though perhaps is more suitable for treating or bringing about particular states of mind.