Another side effect of vitamin B12 or symptom or vitamin B12 toxicity is having acne. Acne is a common skin condition which can be difficult to treat. Some people turn to face washes and other skincare products in the market, but these products do not always guarantee successful results.
The best way to treat acne is to find out the possible cause behind it. It has been found that excessive vitamin B12 could be responsible for the growth and development of acne. Although it is not fully understood why. However, some people who have been taking the supplement complained that they started having acne after taking the supplements for a while.