The sequence is proline-rich, with three consecutive prolines followed by a fourth at position eight, and that conformationally constrained backbone is the usual structural explanation offered for the resistance
doi: 10.1007/S40242-023-3050-0 34
Many people feel fatigued because they are mildly dehydrated and depleted in sodium, potassium, and magnesium, not because they need b12
"The combination of GHRH analogs such as CJC-1295 and GHRPs like Ipamorelin synergistically enhances GH secretion, promoting recovery, muscle regeneration, and sleep quality key components of athletic performance and rehabilitation." Walker et al., Growth Hormone & IGF Research Clinical Evidence CJC-1295 has been shown to elevate GH and IGF-1 for sustained periods, leading to improvements in lean body mass, tissue repair, and overall recovery capacity
Advances in Gerontology, 4(4), 337-345