The peptide's structure contains the 4-10 melanocortin receptor binding region common to -MSH and adrenocorticotropin (ACTH), but incorporates a lactam bridge between amino acids 4 and 10, along with specific amino acid substitutions (Nle4, Asp5, D-Phe7, Lys10) that enhance receptor binding affinity and metabolic stability
On best use, NAD+ tends to suit systemic goals like low energy, fatigue, brain fog, and healthy aging support, whereas peptides suit targeted goals like skin quality, tissue repair, and recovery
Xue M, Kim CS, Healy AR, Wernke KM, Wang Z, Frischling MC, et al
It boosts the bodys natural energy peptides
[6] Still, baseline testing may be important if you have a history of liver disease or are taking other medications metabolized by the liver