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N-acetyl-cysteine (aka
In many cases, the exact injection site matters less than proper administration and consistency
The compound is not listed on any controlled substance schedule in the US, meaning possession without intent to distribute exists in a legal gray area rather than being explicitly prohibited
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This compound functions as both a peptide (a chain of amino acids) and a copper complex, which allows it to interact with the skins surface and support processes related to texture, firmness, and hydration
Published work exists on both forms independently, including studies on copper-free GHK, so a protocol should state which species is intended and control the copper content of the medium accordingly
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