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They're legal to possess and use but not approved for human therapeutic use
Is there actually any human evidence that this works
Studies on the variability of glutathione S-transferase from research subjects [PMID: 7067148] Laboratory literature summary: Studies on the variability of glutathione S-transferase from research subjects erythrocytes
Weve seen websites sell B12 without clear documentation or quality control, and some appear to source it from Alibaba.com
This product is supplied strictly for laboratory research purposes only and is not approved for human or veterinary use.
1 2 The American Journal of Clinical Nutrition
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