Growth hormone is not released in a steady stream. The pituitary puts it out in pulses, most of them overnight, on instructions that come down from the hypothalamus — and the size, timing, and rhythm of those pulses shift with age, sleep, body composition, and health.
The compounds in this category work on that instruction layer. None of them is growth hormone. Each is studied for its effect on the body's own pulsatile release, which is a meaningfully different proposition from supplying the hormone directly — and the reason a licensed provider evaluates and monitors rather than simply dispensing.



