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A COA documents third-party testing of the medication for: Identity (confirming the medication is what the label says) Potency (confirming the concentration matches the label) Sterility (confirming no microbial contamination) Endotoxin levels (confirming safety for injection) pH and stability If your pharmacy cannot or will not provide a COA, consider whether you are comfortable using their products
Three ingredients
In simple terms, mixing GHK-Cu peptides and vitamin C in the same routine creates a chemical conflict that deactivates or weakens both ingredients
However, a very small number of peptides can have solubility or stability issues with benzyl alcohol
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