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GHK-Cus levels decline with age, contributing to visible signs of skin aging
The main reason that a doctor would prescribe vitamin B12 injections is if the patient is unable to obtain enough vitamin B12 on their own, whether they have pernicious anemia or are unable to get enough of the vitamin through their diet alone
Key publications: 'Stimulation of collagen synthesis in fibroblast cultures by GHK-Cu' (1988, FEBS Letters), 'In vivo stimulation of connective tissue accumulation by GHK-Cu' (1993), 'GHK-Cu stimulates matrix metalloproteinase-2 expression' (2000)
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