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In any Matrixyl vs GHK-Cu evaluation, this mechanism gap is the decisive factor it determines not only which peptide suits a given protocol, but also what research outcomes are realistically achievable
Furthermore, in the presence or absence of GSH synthesis, tumours have an adequate supply of upstream metabolites (that is, cysteine) to sustain growth
The practical result is threefold: the GHK-Cu loses its copper(II) coordination and likely its biological activity
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