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Immune Health Modern lifestyle habits like poor dietary choices, lack of sleep, abundance of stress, exposure to chemicals, and exercise extremes can incur physiologic changes
hence it is difficult to estimate prevalence, which can be dependant on whether symptoms are clinician assigned or patient reported
This does not make it the most effective, which remains debated, but it does make it among the best characterized for safety
USA 100 , 39713976 (2003)
The copper component is biologically essential and tightly regulated research data suggests GHK-Cu actually helps regulate copper metabolism rather than causing copper accumulation
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