Came across a review summarizing how GHRH analogs like sermorelin stimulate the pituitary to release GH in a pulsatile, more physiologic way compared to exogenous GH. The pitch is that working with the feedback loop reduces the risk of shutting down natural production. It's mostly a synthesis of older work rather than new trial data, but a decent primer if you want to understand the mechanism. If you share studies here, please link the actual source so people can read it themselves rather than just trusting a summary.