POTENCY:
* Ipamorelin is potent but the weakest GH releaser.
* GHRP-6 is very potent in effecting GH release.
* GHRP-2 is a little bit more potent then GHRP-6
* Hexarelin, the strongest is a little more potent then GHRP-2.
CORTISOL & PROLACTIN:
* Ipamorelin does not increase cortisol or prolactin at any dose.
* GHRP-6 dose not effect these hormones up to 100mcg but does so minimally above 100mcg.
* GHRP-2 has a stronger effect on these hormones at all dosing levels rising to the high normal range for cortisol & prolactin.
* Hexarelin at all dosing levels has the strongest impact on cortisol & prolactin with levels in the upper bounds of normalcy.
DESENSITIZATION:
* Ipamorelin & GHRP-6 do not desensitize as long as there are short breaks between doses (i.e. 2 hours or so).
* GHRP-2 does not desensitize in the lower dose ranges w/ short breaks. At high dose it is unclear, but some desensitization may occur.* Hexarelin has been shown to desensitize w/o regard to dose and even with short breaks between doses. This effect shows up after 14 days of continuous use and may be avoided by either keeping doses low or taking a full day or two off every two weeks.