Also called PRL
Prolactin is a pituitary hormone best known for its role in lactation. Some GH-releasing peptides — particularly GHRP-6 and hexarelin — elevate prolactin alongside GH, which is considered an undesirable effect in research contexts. Ipamorelin is distinguished by its minimal effect on prolactin at research doses.
Research use only. This definition is an educational reference, not medical advice or dosing guidance.