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10.3390/cancers16061144 Cancers 92 MorsliD.TbahritiH.RahliF.MahammiF.NagdalianA.HemegH.et al (2025)

When to take: The best times to take the IGF-1 would be post-workout on training days and in the AM on rest days

The difference likely relates to the specific conformational changes each agonist induces in the receptor, which determines which G-protein pathways are preferentially activated

Clinical Relevance: These findings explain GHK-Cu's accelerated wound closure observed in clinical settings and its interest as a therapeutic candidate for chronic wounds, post-surgical recovery, and tissue regeneration applications

That said, peptides arent the right fit for everyone