is glutathione for skin whitening safe

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bca2/8649545/84398a1f4bb7/JAH3-10-e020560-g001.jpg Vita B12 Injection 1mg/ml 3 Ampoules sunflower phospholipids Glutamine synthetase (GS) ligates ammonia to glutamate and produces glutamine, whereas asparagine synthetase (ASNS) generates asparagine from aspartate and the amide nitrogen of glutamine (Fig Selection:1 Box(4ml x 5vials)

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