MM. Ghrp2,6,hex, and ipamorelin are all ghrp's. They are all growth hormone releasing peptides. They all do the same thing. Hex is the strongest but down regulates fast and raises cortisol and prolactin. Ghrp2 is next strongest then 6. 6 will increase appetite. Ipamorelin is similar to 6 in strength it also won't down regulate so it's my favorite. Cjc1293 is a ghrh. Growth hormone releasing hormone. Mod grf is my favorite but there is also cjc1295. If you use a ghrp/ghrh combo you will get significant spikes in gh. They are best used in combination. The ghrp's can all be used and mixed around. Very good peptides.