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A number of small studies under laboratory conditions showed that B12 can alter melatonin levels and affect circadian rhythm
105 QuQ.QuJ.GuoY.ZhouB
Vitamin B12 has been found to have a positive effect on the circadian rhythm
However, it is important to note that GHK-Cu is not an MHRA-approved medicine in the UK
It was originally developed to treat growth hormone deficiency and has since gained widespread use in anti-aging and performance medicine
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