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Description
Is GHK-Cu approved by the MHRA

Check vitamin B12 levels in people treated with metformin who have symptoms suggestive of vitamin B12 deficiency This will also include patients found to have megaloblastic anaemia (raised mean corpuscular volume [MVC]), who may be asymptomatic (MHRA, 2022)

In the case of oral supplementation, there appears to be no difference between taking it sublingually or swallowing it

doi:10.1631/jzus.B1700117

10.1371/journal.pone.0007476 PLoS One 14 BedrosianT
