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Key limitation: Most injectable GHK-Cu dosage protocols are extrapolated from topical human trials and animal studies
The Counterpoint: Can You Build Muscle on GLP-1
A couple of studies have investigated its effects when administered intravenously
This insight is especially relevant in the fragrance industry, where high shipping costs often discourage purchases
The simplest way to understand the difference is this: tirzepatide is a dual agonist, while retatrutide is a triple agonist
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