How does B12 work in the body?
Vitamin B12 helps to maintain the body’s metabolism and its central nervous system. It is also a big player in the formation of red blood cells, which carry nutrients and oxygen around the body, helping to maintain skin’s natural strength.
Can B12 “weaken” skin?
A 2015 study showed that too much vitamin B12 can alter the behavior of acne-causing bacteria in the skin, resulting in skin inflammations and acne. How? We have tons of bacteria living naturally on our skin. The one that can cause acne? P.acnes, which actually produces its own B12. In its daily activities, P.acnes bacteria use the amino acid l-glutamine to make either vitamin B12 or peptides called porphyrins. Moreover, a study from 1988 found that P.acnes-derived porphyrins are actually big contributors to acne formation. When the body has taken in a lot of B12, P.acnes goes a little crazy, disrupting its normal function and producing more porphyrins, hence causing or worsening acne.
So, how much B12 is too much?
The recommended daily dose of B12 for adults is no more than 2.4 micrograms per day. And vitamin B12 supplements have been proven to cause acne breakouts. A well-balanced diet should be enough for all your daily vitamin needs, so our advice is, ditch those supplements and watch your diet instead. You should see an improvement in your complexion. If you don’t, consult with a dermatologist on how to improve your skin health.