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mixing ghk-cu Video showing mixed with HA and PRP GHK-Cu Copper Peptide Serum &
Description
Note that this refers to per kg of diet, not per kg of body weight

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In those cases, there isnt really a guarantee of purity, she says

GHK-Cu is a naturally occurring copper-binding tripeptide first identified in human plasma in 1973 by Loren Pickart
