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https://m.media-amazon.com/images/I/611lxzg4SrL._UF1000,1000_QL80_.jpg Sterile Water Chemical and Physical Characteristics GHK-Cu is available in various salt forms, the acetate salt forms are thought to offer improved aqueous solubility, and some sources suggest good solubility of GHK-Cu up to 325mg/mL in water Size:2g GHK-Cu 6 week before and after : r/Biohackers
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