The concentration was 50 to 100 times lower than standard GHK-Cu serums (0.02% vs 1 to 2%), which likely explains the modest outcome
72 Although based primarily on anecdotal and case reports, concerns regarding risk of regurgitation and pulmonary aspiration due to delayed gastric emptying have resulted in guidance from the American Society of Anesthesiologists (ASA) Task Force on Preoperative Fasting for use of these medications prior to non-urgent or emergent procedures requiring general anesthesia
These findings should be overseen with glutamate as the major excitatory neurotransmitter in the central nervous system (i.e., cognitive functions such as learning and memory in the brain [200], the precursor of major inhibitory neurotransmitter GABA) but excitotoxic neuronal death as a direct result of high concentrations [201], and tight physiologic range that should be maintained [59]
Gopal Grandhige, MD, FACS, Board-Certified Surgeon Last Reviewed: July 7, 2026 The safest peptide to take is the one a clinician prescribes, sources human-grade from a licensed compounding pharmacy, and monitors over time
Blue-Green Algae