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One of the most common debates in the GHK-Cu community: should you use injectable or topical
Food Science and Biotechnology
The SeekPeptides peptide calculator provides weight-based reference ranges for various peptides, though for retatrutide specifically, the clinical protocol doses (2mg, 4mg, 8mg, 12mg) remain the standard reference points
Most community protocols start cagrilintide at 0.25 mg/week once retatrutide is established, then step up every 4 weeks to 0.5, 1.0, 1.7, and 2.4 mg/week
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