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As a naturally occurring peptide fragment, BPC-157 also lacks strong patent protection, which has likely reduced commercial incentive to fund the trials needed for FDA approval

This disrupts normal calcium cycling in cardiomyocytes, particularly during diastole, resulting in impaired Ca 2+ transport and excitation-contraction coupling, as evidenced by reduced contraction amplitude, left ventricular developing pressure, and an impaired force-frequency relationship (Joulin et al., 2009)

This might mean you need shots more often

Understanding the Safety Profile GHK-Cu is widely considered safe and non-toxic, largely because its a substance your body already produces