Proper storage and handling are to maintain the efficacy and integrity of these research-grade peptides
In my opinion, its likely a little bit of both
2007 Winter;120(1-3):179-94
Beyond POTS, autonomic dysfunction in long COVID can present as: Dysregulated sweating Impaired gastrointestinal muscle contractions, causing constipation, pain, nausea, or weight loss Temperature dysregulation An exaggerated fight-or-flight response The vagus nerve within this systemthe primary parasympathetic nerve connecting the brain to the gut, heart, and lungsappears to be particularly vulnerable to COVID-19-related damage, with implications for heart rate variability, gut function, and the inflammatory regulatory role the vagus nerve normally performs
This is why its effects are so widespread, from improving skins appearance to supporting wound healing