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Butafosfan is an organic phosphorus
The tripeptide has a strong natural affinity for copper (II) ions, similar to the copper-transport site on human albumin, and readily forms the stable GHK-Cu complex
Unlike anabolic steroids which activate androgen receptors everywhere (muscle, liver, prostate, etc.), SARMs are designed to target muscle and bone tissue specifically
Human clinical evidence for GHK-Cu is mostly small, industry-funded topical skin trials
Most people need several weeks to a few months of consistent use before judging GHK-Cu
Repeated freeze-thaw cycling is a general cause of peptide loss
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