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Send it back with the prepaid label and get results in just a few days
Using warm water or a warm room
The dissolved solution should be clear blue from the copper-bound GHK-Cu
Label the vial with the preparation date and the concentration, noting whether the concentration refers to the iodide salt at 286.11 g/mol or to the free cation at 159.21 g/mol, since that choice changes every downstream molar calculation
The test solution should be transferred with a sterile syringe to avoid external contamination
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