Your specific dose and how long you need to take it will be determined by your doctor based on factors like your age, weight, and the conditions you are being treated for
doi: 10.1002/1097-0142(19890315)63:6 3.0.co;2-9
The selectivity is documented in the foundational paper: a peer-reviewed European Journal of Endocrinology study demonstrating that Ipamorelin stimulates growth hormone selectively without elevating ACTH, cortisol, or prolactin, which is exactly why it has become the default selective secretagogue in modern peptide medicine
Zhu L, Wu W, Jiang S, Yu S, Yan Y, Wang K, et al
A 503A compounding pharmacy is a licensed pharmacy that compounds medications for individual patients based on a valid prescription from a licensed practitioner
Most articles on peptides for joint pain are published by clinics selling peptide therapy