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The Vitamin B12 injection is an effective way to treat a deficiency

Because it is

In addition to it being one of the richest antioxidants, it is being promoted as a skin-lightening agent, following the discovery of its antimelanogenic properties [7]

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Dosage Protocols Generally, initial doses are small

doi: 10.1084/jem.61.5.643 25 LavergneS
