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GHK-Cu, also referred to as Copper Peptide, is a naturally occurring tripeptide composed of glycine, histidine, and lysine bound to copper ions
The peptide influences circadian rhythm regulation, making it valuable for travelers crossing time zones or night-shift workers trying to sleep during the day
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This type of support can be especially helpful for people who have tried to lose weight in the past without lasting results
Because these injections are delivered into the muscle, they are absorbed more directly and predictably than oral supplements
However, others using specific oral preparations reported peripheral edema, gastrointestinal symptoms, headache, fever, and infections (32) (33)
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