Phototherapy in the form of 311nm light has shown to stimulate pigment production by melanocytes and re-colour the white patches of vitiligo. This form of treatment is the most commonly used source of light. The University of Columbia has undertaken studies in 12 subjects using RED light to re-pigment vitiligo.
NASA discovered over 4 decades ago that red light sources stimulated plant growth. To date there has been one study on the use of red light therapy for vitiligo patients- the success rate of red light phototherapy was 60% at the 16 week mark.
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