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Its research interest lies in potency: published work reports activity at concentrations orders of magnitude below those required for brain-derived neurotrophic factor in comparable assays, which if replicated would place it among the most active synaptogenic compounds described

A result thats off by 1,000 is usually a unit mismatch

BMC Pediatr

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A practical way to think about concentration: For face and neck use, a 4% GHK-Cu concentration is often gentle enough for regular routines

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