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& Leclercq, F
The most commonly reported side effects are mild and tend to resolve within the first week of use
These effects are often studied through molecular markers rather than behavioral outcomes, reinforcing the strictly mechanistic nature of this research
For a longer Retatrutide protocol of 20 to 24 weeks, GHK-Cu can run for the first 12 weeks, take a 4 to 6 week break while Retatrutide continues, then resume for another 8 to 12 week cycle
PMCID: PMC7108996 Jimnez-Reina, L., Caete, R., de la Torre, M
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