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Most AHK-Cu injectable data are really GHK-Cu: the subcutaneous and intraperitoneal studies cited for the class used the sister peptide GHK-Cu in rats, mice and dogs [6] [7] [8] [9]
More serious B12 deficiencies have the potential to impair heart and neurological function, leading to a wide range of serious symptoms, including but not limited to tinnitus, severe joint pain, memory problems, depression, anxiety, poor muscle function, ataxia and changes in reflexes
A credible product COA must include HPLC purity above 98%, independent mass spec confirmation at approximately 1419 Da, and endotoxin data below 1 EU/mg