glutathione injections pubmed in Skin Aging and Tissue Regeneration: A Systematic Review of Molecular Mechanisms, Redox Modulation, and Biomedical Implications Glutathione Injections for Skin Whitening:
Description
Inhal Toxicol 24:652658, 2012

Deficiency in B12 can lead to demyelination, resulting in neurological symptoms such as numbness, tingling, impaired coordination, and cognitive decline

doi: 10.1124/jpet.106.108597

I was told not to get the 2nd vaccine and was given a letter on why o would be unable to receive the other dose
