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Sources: Clinical Nutrition ESPEN (2020)
For collagen-specific support, GHK-Cu can be added at systemic doses via subcutaneous administration or applied topically over affected areas
Pre-filled pens won't be available until FDA approval
Older adults are more likely to be on multiple medications, increasing the potential for interactions
In most clinical settings, the peptide is studied via small subcutaneous injections, usually administered in the morning on an empty stomach to maximize the fat-burning signal
Frequency depends on why you are having B12, your previous diagnosis, and clinical advice
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