It selectively triggers GH release from somatotroph cells while avoiding significant stimulation of other anterior pituitary hormones such as prolactin, ACTH, and cortisol, distinguishing it from earlier GHRPs and making it the most selective GHRP-class compound characterised to date
L-Arginine is sometimes used as a similar supplement, however L-Citrulline is more bioavailable, easier on the digestive system, more effective and has a longer-lasting effect
Iranian J
Softer, more hydrated skin usually appears within the first month, while clearer overall brightening typically develops by month 2 to 3 of consistent treatment
Wang L, Brennan M, Li S, Zhao H, Lange K, Brennan C
Its concentration in plasma declines significantly with age from approximately 200 ng/mL at age 20 to roughly 80 ng/mL by age 60