What it is

Kisspeptin-10 is the ten residue active fragment of the kisspeptin family, the common short form of a signal your own hypothalamus makes. Its receptor is KISS1R, once called GPR54. The longer kisspeptin-54, the original metastin, is the same signal in a longer wrapper and behaves differently in the body: given under the skin it lasts around half an hour against roughly four minutes for the ten residue form after a vein dose. They are not interchangeable, and a result from one does not transfer to the other. This is a hormone-system switch, not a tissue repair peptide.