- Oct 30, 2026
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The logic behind stacking a GHRH analogue with a ghrelin receptor agonist is that they act at different points and therefore add up. That part is true. What gets left out is that the pituitary also answers to somatostatin, and that the whole system is designed to oscillate rather than to sit elevated.
Endogenous growth hormone is released in pulses, and the largest of them rides on the first stretch of deep sleep. Pulsatility is not decorative, it is how the axis signals. Introduce a long acting analogue that keeps the receptor occupied and you flatten that rhythm. The total amount of hormone secreted can go up while the pattern that the body reads as a signal degrades.
There is also a practical measurement problem that undermines most of the anecdotal reports here. IGF-1 is what people test, and it is a downstream average. It cannot tell you whether secretion is pulsatile or continuous, and it cannot tell you whether the peptide you injected is what the label claimed. So two people with identical IGF-1 values can be running completely different physiological situations and neither knows which one they are in.
The honest version of the stacking question is not which combination is strongest. It is whether you are reproducing a rhythm or overriding one, and whether you have any measurement that can tell the difference.
Endogenous growth hormone is released in pulses, and the largest of them rides on the first stretch of deep sleep. Pulsatility is not decorative, it is how the axis signals. Introduce a long acting analogue that keeps the receptor occupied and you flatten that rhythm. The total amount of hormone secreted can go up while the pattern that the body reads as a signal degrades.
There is also a practical measurement problem that undermines most of the anecdotal reports here. IGF-1 is what people test, and it is a downstream average. It cannot tell you whether secretion is pulsatile or continuous, and it cannot tell you whether the peptide you injected is what the label claimed. So two people with identical IGF-1 values can be running completely different physiological situations and neither knows which one they are in.
The honest version of the stacking question is not which combination is strongest. It is whether you are reproducing a rhythm or overriding one, and whether you have any measurement that can tell the difference.