GHK-Cu : Powder: 2 years (refrigerated) Reconstituted: 21 days (slightly less stable) Sensitive to oxidation Weight loss peptides Powder: 2-3 years (refrigerated) Reconstituted: 28 days Modified for stability (long half-life) Tirzepatide : Powder: 2-3 years Reconstituted: 28 days Similar stability to semaglutide Liraglutide : Powder: 2 years Reconstituted: 28 days General stability ranking Most stable (easiest to store): Modified peptides (CJC-1295 DAC, Semaglutide) Simple sequences (BPC-157) Average stability : Most therapeutic peptides Standard GH peptides Healing peptides Less stable (more careful storage): Copper peptides (GHK-Cu) Complex longer sequences Unmodified natural peptides All still follow same basic storage rules
For example, in these studies morphine-induced phosphorylation of Thr370 was either undetectable (using a phosphopeptide antibody) or observed at relatively low levels (by LC-MS)
Studies noted improvements in serotonin and dopamine balance, crucial neurotransmitters involved in mood regulation
History of keloids, hypertrophic scarring, or abnormal wound healing excluded from the wound-healing trial (NCT07437586)
Reported side effects in available research and clinical use include fatigue, headaches, nausea, and injection site irritation generally mild, but again, incompletely characterized over long-term use
