Vitiligo is a skin disease in which pigment-making cells, called melanocytes, are destroyed, leaving white irregular patches of skin where pigment used to be. The patches usually appear on the hands, feet, arms, face, and lips, but can also occur on the skin around the mouth, nose, eyes, and genitals. Hair growing from areas affected by vitiligo may also turn white. Although vitiligo in itself isn't painful, it can cause emotional distress.
Science hasn't identified the cause of vitiligo, but some researchers theorize that an autoimmune process plays a role. In an autoimmune disease, the body's immune system starts attacking innocent tissues. In vitiligo, antibodies may develop against melanocytes, ultimately destroying some of them. Vitiligo seems to be more common in people who have other autoimmune diseases; however, most people with vitiligo have no other autoimmune disease.
Most conventional vitiligo treatments combine ultraviolet light (UVA) exposure with oral or topical drugs that selectively sensitize the skin to UVA—such drugs are called "psoralens" because they are most commonly used to treat psoriasis. The results of this treatment are generally reasonably good. Another option is topical corticosteroids, which may be best for localized vitiligo.
Principal Proposed Natural Treatments
Most natural therapies for vitiligo also employ exposure to UVA or natural sunlight in conjunction with an oral or topical treatment.
Khellin, an extract of the fruit of the Mediterranean plant khella ( Ammi visnaga) , is closely related to the standard psoralen drug methoxsalen. Both are used in conjunction with UVA to repigment vitiligo patches.
double-blind, placebo-controlled study
of 60 people indicated that the combination of oral khellin and natural sun exposure caused repigmentation in 76.6% of the treatment group; in comparison, no improvement was seen in the control group receiving sunlight plus placebo.
A typical oral dosage of khellin is 100 mg daily.
Khellin has no reported side effects when used topically. Oral doses, however, have caused various side effects ranging from nausea and vomiting to liver inflammation.
A handful of preliminary studies suggest that oral L-phenylalanine, a natural amino acid, might also be helpful for vitiligo. It too is combined with either sunlight or controlled ultraviolet light.
Of four studies on the subject, only one was double-blind.
For more information, including dosage and safety issues, see the full
Other Proposed Natural Treatments for Vitiligo
A double-blind study of 52 people found that use of Ginkgo biloba
There is some evidence that people with vitiligo have lower than average levels of both
Para-aminobenzoic acid (
As noted above, vitiligo is sometimes associated with pernicious anemia. Pernicious anemia in turn is often linked to low levels of stomach gastric acid, a condition called achlorhydria.
Last reviewed April 2009 by EBSCO CAM Medical Review Board
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