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They have different uses and are not interchangeable
Starting at 0.5mg instead of 0.25mg is often fine, especially if you were tolerating moderate doses of your previous compound without issues
A simple blood test will reveal the severity of your deficiency and help a doctor determine whether diet, supplements, or injections are your best solution
Neither is universally "better"-they are related copper peptides with similar roles in collagen and repair
What is the standard GHK-Cu dosage
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