CJC-1295: GHRH analogue activating the pituitary GHRH receptor, stimulating pulsatile GH release. The DAC version (Drug Affinity Complex) covalently binds to serum albumin, extending half-life from 30 min to 8–10 days.
Ipamorelin: Pentapeptide activating GHS-R1a receptor. High selectivity: does not significantly elevate cortisol, prolactin or ACTH, unlike other GHRPs.