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Peptide chemistry fundamentals on N-terminal acetylation and C-terminal amidation the same modifications are used across many other research peptides (Selank, Semax variants, others), so understanding the chemistry pays off broadly

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Glutamate Glutamate is the primary excitatory neurotransmitter, which makes it easier for neurons to send impulses where they need to go

The palmitoyl-KTTKS molecule delivers the KTTKS pentapeptide (a fragment of human procollagen type I) across the stratum corneum to dermal fibroblasts, where the pentapeptide signals collagen synthesis upregulation