Ginkgo
Extract Effective Treatment for Vitiligo
Healthnotes Newswire (August 21, 2003)—Supplementation with
a standardized extract of ginkgo (Ginkgo biloba) may help slow
the progression of skin depigmentation and actually increase pigmentation
in adults suffering from vitiligo, according to a study in Clinical
and Experimental Dematology (2003;28:285–7). This is encouraging
news for the millions of adults that have to deal with this often
difficult to treat condition.
Vitiligo is a genetic skin disorder in which patches
of skin lose pigment and appear lighter than the surrounding skin.
Hair in these areas may turn white and the skin tends to sunburn
more easily. Some studies suggest up to 4% of the world’s
adult population is afflicted with this condition. Vitiligo was
most recently brought to the public’s attention when pop
star Michael Jackson claimed the lightening of his skin was a
result of vitiligo. The cause of vitiligo is unknown. Although
no serious consequences arise from having vitiligo, the changes
in skin color can be distressing for some individuals. Treatment
often includes using topical steroid creams, but the success rate
is low and it may take months or years to regain full pigmentation.
In the new study, 47 adults with slow-spreading
vitiligo were assigned to receive 120 mg per day of a standardized
extract of ginkgo (containing 9.6 mg of ginkgo flavonglycosides
per day or a similar looking placebo for six months. Photographs
of the affected areas were taken every six weeks to monitor the
changes in size and pigmentation. No serious side effects were
reported by the participants taking ginkgo.
Disease progression was arrested in 80% of all
people taking ginkgo, compared with only 36% of those taking a
placebo. Individuals with vitiligo restricted to the face who
took ginkgo all experienced a halt in the progression of their
vitiligo, whereas no person with this form of vitiligo in the
placebo group had any signs of the disease arresting. In the ginkgo
group, marked or complete repigmentation occurred in 40% of the
participants, but less than 10% of the placebo group had similar
results.
This is the first study to show that ginkgo is
an effective, safe treatment for vitiligo. Ginkgo is a potent
antioxidant, anti-inflammatory, and immune-modulating herb. Some
researchers believe vitiligo is the result of free-radical damage
to the skin and that ginkgo prevents these free radicals from
doing further harm. Ginkgo has been shown to cause a blood-thinning
effect in some individuals, so people taking blood-thinning medication
should avoid taking ginkgo, unless under the supervision of a
physician.
Other nutrients that may be useful in treating
vitiligo include L-phenylalanine, folic acid with vitamin B12,
PABA, and vitamin C. Preliminary studies suggest picrorhiza (Picrorhiza
kurroa), a traditional Indian herb, may also stimulate repigmentation
of skin in people with vitiligo.