HGH or growth hormone peptides: the two categories most rankings miss
Most rankings put every growth hormone compound on one list and crown a winner. That collapses two different categories that work on two different receptors into a comparison that was never valid.
For educational and research purposes only. This is not medical advice and is not human-use guidance. Consult a qualified professional before acting on anything here.
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Two categories, not one ranking
Growth hormone compounds fall into two categories that work on two different receptors. Mixing them into one ranking is like rating trucks and sedans on the same list and calling the truck the winner because it tows more. The two are not competing for the same slot. They do different jobs, and the useful build uses one from each.
The first category is the GHRH analogs. These copy growth hormone releasing hormone, the natural signal that tells your pituitary, a gland at the base of the brain, to produce more growth hormone. They load the signal. The second category is the GHRPs, growth hormone releasing peptides, which tell the pituitary when to release what it has built. They fire the trigger. One loads, the other fires.
You are not choosing one compound from the whole list. You are choosing one GHRH to load the pituitary and one GHRP to fire the pulse, and running them together.
Running either side alone is less effective than running both, because each is doing only half of the sequence. A loaded pituitary with nothing firing the release, or a firing signal with less growth hormone built up to release, both underperform the pair. The question is not which single compound is strongest. It is which GHRH pairs with which GHRP for your situation.
Where HGH sits
Synthetic HGH is not in either category. It bypasses the pituitary entirely and introduces growth hormone directly at whatever level is set. That is a different mechanism, not a stronger version of the same one. The tab below places all three side by side on the one axis that separates them, which is whether a compound loads the signal, fires the release, or skips the pituitary altogether.
HGH and the secretagogues, meaning the compounds that signal your body to secrete its own growth hormone, answer different questions rather than sitting on one scale. HGH introduces the hormone directly, which is a prescription decision that belongs with a qualified prescriber. Secretagogues keep your own signaling loop intact and working. Which one fits depends on your timeline and how long a protocol is meant to run, not on which is stronger in isolation.
Everything below this point is about picking the pair. Part two is the side effect comparison that rules compounds out for your situation. Part three is the foundation check that determines whether any pairing can work at all. Part four is the decision itself, and what a working protocol looks like over the first twelve weeks.
Watch the full breakdown
HGH vs Growth Hormone Peptides: Every Compound Rated. This page reflects the current framing, where HGH and the secretagogues answer different questions rather than sitting on one scale. Where the video describes one as winning on output, read that alongside the two-category explanation above.
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The remaining sections cover the side effect comparison across every compound, the foundation check that sets the ceiling, and the pairing decision. One email opens this guide and every other free research guide on the site. One step, no account needed.
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Part two
The side effect comparison, read by column
The video ranks each compound by how much growth hormone it produces. This table shows what a ranking cannot, which is every side effect variable across all the compounds at once. Read it by column, not by row. The side effect that conflicts with your situation eliminates a compound regardless of how it produces, so the first move is to rule out on your limiting variable before comparing output at all.
Rule out on your limiting variable
| Compound | GH output | Cortisol | Prolactin | Appetite | Desensitization |
|---|---|---|---|---|---|
| Tesamorelin | High, GHRH | Minimal | Minimal | Minimal | Low risk |
| CJC-1295 no DAC | High, GHRH | Minimal | Minimal | Minimal | Low risk |
| CJC-1295 w/ DAC | High, sustained | Minimal | Minimal | Minimal | Low risk |
| Ipamorelin | Moderate, clean pulse | Minimal | Minimal | Minimal | Low risk |
| GHRP-2 | Moderate to high | Elevated | Elevated | Moderate increase | Moderate |
| MK-677 | Moderate, sustained | Variable | Variable | Significant increase | Low, oral |
| GHRP-6 | Moderate | Elevated | Elevated | Significant increase | Moderate |
| Hexarelin | Highest GHRP peak | Significant | Significant | Variable | High risk, receptor |
GH output is where a compound ranks. The other four columns are where it gets ruled out. Select a variable above to dim what it eliminates.
Notice that the four cleanest compounds on side effects, tesamorelin, both forms of CJC-1295, and ipamorelin, are the ones that survive almost every filter. That is not a coincidence. The compounds with the highest raw GHRP peak also carry the most side effect load, which is exactly why raw output is the wrong first filter. Rule out on your constraint, then compare output among what remains.
Part three
The foundation check that sets the ceiling
Growth hormone peptides amplify what is already present. They do not replace a broken foundation. If any input below is failing, that input is the limiting variable and no compound bypasses it. Check the conditions that are genuinely in place. The ones you leave unchecked are where the ceiling most likely sits.
Work through the five conditions and a read of your likely limiting variable will appear. It returns the variable to look at next, not a compound. Saves to this device.
Part four
The pairing decision and what working looks like
The pairing decision has two steps, one for each category. Based on the data, tesamorelin is the most evidence-backed GHRH and ipamorelin is the cleanest GHRP, so that pairing is the framework's default starting point rather than a ranked winner. The most cost effective pairing that still holds up is CJC-1295 without DAC alongside ipamorelin. Neither is a recommendation for your protocol. They are where the framework starts before your own constraints narrow it.
Step one, choose the GHRH
If you want the most evidence-backed option and cost is not the main constraint, that points at tesamorelin. If you want a strong result but cost and availability matter, CJC-1295 without DAC is the practical choice. The version with DAC, which extends how long the compound stays active, exists mainly for the case where twice daily fasted injections genuinely cannot be managed, and it trades the clean pulse shape for that convenience. That is a last resort rather than a default.
Step two, choose the GHRP
If you are starting a growth hormone protocol for the first time, or have no specific reason to escalate, ipamorelin is the clean starting point because it produces a pulse with minimal cortisol, prolactin, or appetite load. If ipamorelin has not produced a sufficient response after eight to twelve weeks at a proper dose with the foundation inputs confirmed, GHRP-2 is the next step up, accepting the side effect increase the part two table shows. If injection is not workable at all, MK-677 is the oral alternative, trading precision for the convenience of not injecting.
The most common mistake. Most researchers never need to move past ipamorelin. If results are not showing after eight to twelve weeks, the foundation inputs in part three are the first place to check, not the compound. A suppressed pulse and an inadequate compound look identical from the outside, and the foundation is the cheaper thing to rule out.
What working looks like, and when
Most researchers judge a growth hormone protocol on body composition alone, which is a lag indicator that shows up last. The signals below show up first and tell you whether the compound is producing before the mirror confirms it. This is a reference to check your own timeline against, not a promise of a schedule.
| Timeline | Signal if working | If not moving, check |
|---|---|---|
| Week 2 | Sleep onset faster, deeper sleep, fewer wake-ups | Injection timing is fasted, dose is confirmed |
| Week 4 | Recovery between sessions improves, soreness clears faster | Foundation inputs, and whether training is consistent enough to notice |
| Week 8 | Energy steadier through the day, skin quality may shift | Pairing, whether both a GHRH and a GHRP are actually running |
| Week 12 | Body composition shifts become visible, lean mass feels different | Blood work, whether IGF-1 is actually elevated |
Early signals run ahead of body composition. If the early ones move and composition does not, the compound is working and something else is limiting the outcome.
If sleep and recovery improve but composition does not change, the compound is working and something else is limiting the outcome. Check diet, training stimulus, and cortisol before changing anything about the protocol. Escalating the compound to fix a problem the compound is not causing is how researchers end up on a stack that carries more side effects without moving the result.
What this guide does not cover. This covers the two categories, the side effect comparison, the foundation check, and the pairing decision. It does not cover compound level timing, stack compatibility with GLP-1 or metabolic compounds, or full protocol design. The Protocol Bottleneck Tool maps where the friction most likely sits across your whole situation, and the search engine covers single questions individually.
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