Some people report spectacular results after taking Vitamin B 12 supplements.
Vitamin B 12 is available in dairy products. It may be difficult to obtain from plant sources as it is produced by certain bacteria in the guts of animals.
There are different forms of Vitamin B 12 (Cobalamine and Methycobalamin)
Methylcobalamin has a better biological availability with a better absorption and intracellular penetration. On the other hand some people (a few only) have a basic problem with B12 absorption in all forms. They would benefit more from B12 injections (1000 mcg 3 x /week in the first 2 months, then 2 injections per week in the next 2 months and after this 2 injections per months for unlimited time). Better would be injections with a combination of B12 plus B6 and Folic acid in one shot. So far I am only taking B12 and Folic acid because that is the combination that has worked for a few with whom I’ve spoken.
Because many people with vitiligo also have stomach malfunction, they do not absorb vitamin B12 and folic acid very well. This may be part of the reason why these nutrients, along with vitamin C, are often successfully used as part of a vitiligo repigmentation program. Suggested doses are 5mg folic acid and 1000mg vitamin C, twice daily. For the best chance of success, the vitamin B12 should be given by injection, 1000 mcg weekly. Several months are usually required before early repigmentation is seen.
Taking any one of the B complex vitamins for a long period of time can result in an imbalance of other important B vitamins. For this reason, it is generally important to take a B complex vitamin with any single B vitamin.