Ipamorelin guide & protocols

Ipamorelin is the most widely sold compound in the growth hormone family, and the reason is subtraction rather than addition. The older compounds in its class do what it does and several other things besides, including raising cortisol and making people ravenously hungry. Ipamorelin was built to leave those alone. Below is the nightly pattern people actually run, why the timing matters more here than the amount, and how it compares to the older compound it largely displaced.

Vial size isn't part of what follows, since the amount of bacteriostatic water you add sets your concentration either way. Our reconstitution calculator handles that math for whatever vial and target amount you're working with.

What it is

Ipamorelin is a very short synthetic peptide, five amino acids long, that works on the ghrelin receptor. Ghrelin is the hormone your stomach releases when it's empty, and one of the things it does, alongside making you hungry, is tell the pituitary to release growth hormone. Ipamorelin was designed to trigger the growth hormone half of that signal and skip the rest.

That's a different door from the one CJC-1295, sermorelin and tesamorelin use. Those copy the hypothalamic signal; ipamorelin copies the stomach's. The practical consequence is that the two can be used together to push the pituitary from two directions, which is why they're paired so often.

The word that gets attached to ipamorelin everywhere is selective, and for once the marketing word came from the research rather than the other way around. It was characterised specifically as the first compound of its type to raise growth hormone without measurably raising cortisol or the hormone that drives it, at the amounts that worked.

What people use it for

Sleep and recovery, mostly, and they tend to arrive in that order. The most consistent report on this compound across the whole community is deeper sleep in the first week or two, which makes sense given that the body's own biggest growth hormone release happens during deep sleep and this is a nudge to that same system.

After that it's the general growth hormone case: recovery from training or from ordinary wear, how the body composition sits, and the sense that repair slowed down somewhere in the last decade. There's a quieter thread around bone, which comes from animal work looking at whether this compound offsets what steroid medication does to bone formation, and that's a more interesting question for a midlife woman than the muscle framing this category usually gets.

The selectivity is why people land here rather than on the older compounds. Cortisol is the last thing most of this audience needs more of, and a compound that makes you hungry at bedtime is a poor fit for anyone also working on body composition.

Formulations

Ipamorelin ships as a lyophilized powder for subcutaneous injection. Across the vendors we track, 10 mg vials are the most common by a wide margin, with 5 mg next and 2 mg still available from a few. It's also sold premixed with the no-DAC version of CJC-1295, which is the pairing most people eventually run.

Because the amounts are measured in a few hundred micrograms, a single vial goes a long way, and that's worth thinking about before buying the largest one. The relevant limit isn't the vial, it's the 28-day window after you add water, and the section below works out where those two collide.

Dosing protocols

There's no approved product and nothing establishing an amount for the way people use this, so everything below is convention. Unusually for this site, though, there is one real human study behind the compound, and the last row says what it actually looked at.

See the Ipamorelin research notes for the research behind these figures.

All patterns above are subcutaneous injection.

Why the timing carries more weight than the number

The amounts above sit in a narrow band and nothing distinguishes 200 from 300 mcg in any source we can find. The empty stomach, on the other hand, has a mechanism behind it: eating raises insulin, and insulin blunts growth hormone release. A dose taken shortly after dinner is working against the thing it's for. Two hours clear of food, and clear of the next meal, is the convention, and it's the part of this protocol worth being strict about.

Amount total, for planning your vial purchase. At 200 mcg nightly, a twelve-week stretch runs 16.8 mg (200 mcg times 84 nights), so two 10 mg vials. At the three-times-daily pattern the same stretch is over 50 mg. Compare vendors against a figure like that rather than a vial price.

How much to reconstitute at once. A reconstituted vial keeps about 28 days refrigerated, and at 200 mcg nightly that window only uses 5.6 mg. So a 5 mg vial fits neatly inside it, and a 10 mg vial does not: mixing one whole leaves roughly 4.4 mg to expire unused, which is most of the price difference that made the bigger vial look like a bargain. Unless you're dosing more than once a day, the 5 mg vial is usually the better buy even at a worse price per milligram. Working example: 5 mg into 2 mL of bacteriostatic water gives 2,500 mcg per mL, so 200 mcg is 200 divided by 2,500, times 100, which is 8 units on a standard U-100 insulin syringe, and 300 mcg is 12 units. See how much to reconstitute at once for the general math.

Cycling guidelines

Twelve weeks on with four off is the pattern described most often, and eight-on-four-off also circulates. Neither has anything published behind it. The stated reasoning is that the pituitary's response to a ghrelin-receptor signal dulls with continuous stimulation, so a break restores it.

That reasoning is more plausible here than it is for the growth hormone-releasing hormone compounds, because receptor desensitisation is a genuine feature of this receptor family rather than a general worry. It still hasn't been measured for this compound on this schedule in a person, so treat the specific twelve-and-four numbers as convention that happens to rest on a real mechanism, not as a tested schedule.

Signs a course is commonly stopped or reconsidered:

• Water retention or puffiness in the hands and face, the signature of raised growth hormone signalling
• Numbness or tingling in the hands
• Head rush, flushing or light-headedness in the minutes after a dose, which is commonly reported and usually settles
• Vivid dreams or disrupted sleep, which is the opposite of the effect most people came for
• Blood sugar drifting upward

Stacking

Most commonly paired stack: Ipamorelin with CJC-1295 no-DAC.

Rationale: the two reach the pituitary through different receptors, one copying the hypothalamic signal and one copying the stomach's, and the argument is that pushing both at once produces a bigger release than either alone. The no-DAC version specifically is the partner, because its short pulse matches ipamorelin's own and the two arrive and clear together.

Protocol as run: both before sleep on an empty stomach, commonly 200 to 300 mcg of ipamorelin alongside 100 mcg of the partner, as one injection if bought premixed or two if bought separately.

Lighter stacks: tesamorelin and sermorelin both come up, and both are alternatives to the CJC-1295 half of the stack rather than additions to it, since all three work through the same receptor. BPC-157 appears as a recovery pairing. Where sleep is the actual goal, magnesium and the ordinary sleep measures deserve a mention before another injectable does.

Combinations to approach carefully: the older compounds in ipamorelin's own class, GHRP-2 and GHRP-6, work on the same receptor. Running one alongside ipamorelin isn't combining two signals, it's doubling one and reintroducing exactly the cortisol and appetite effects ipamorelin was chosen to avoid.

Expected results timeline

First week or two: sleep, and this is the most consistent early report anywhere in this category. Usually described as deeper rather than longer, and as waking less.

Months in: recovery is what people describe next, over a month or two. Body composition changes are described over a full twelve-week stretch and are self-reported rather than measured.

Extended, continued use: no data at all. The human research on this compound ran days, in a hospital, for a completely different purpose.

What to expect realistically: the honest position is that the selectivity claim is well supported and the benefit claims are not. What was demonstrated is that this compound raises growth hormone without dragging cortisol up with it, which is a real and useful property. What nobody has shown is that a healthy adult running it nightly ends up sleeping better, recovering faster, or looking different, because that study has never been done. The sleep reports are consistent enough to take seriously as community experience, and that is what they are.

Administration technique

1. The lyophilized powder is reconstituted with bacteriostatic water, at a concentration set by the reconstitution calculator for the target amount.
2. The solution is swirled gently to dissolve rather than shaken, since agitation can degrade the peptide.
3. The calculated volume is drawn into an insulin syringe, which at 8 to 12 units is the only thing that measures this accurately.
4. A subcutaneous site is chosen, commonly the abdomen, with sites rotated night to night.
5. The skin is pinched and the injection given at roughly a 45-degree angle.
6. The dose is commonly given at least two hours after eating and shortly before sleep, since food raises insulin and insulin works against the release this is meant to produce.
7. Where it's run alongside CJC-1295, the two are given together, either premixed or as two injections at the same sitting.

Side effects and safety

Common: a head rush, flushing or brief light-headedness in the minutes after a dose is the most frequently described effect, and it usually settles within a few doses. Water retention and mild puffiness follow. Injection site reactions are mild and less common than on the compounds dosed in milligrams.

Less common: headaches, vivid dreams, numbness or tingling in the hands, and a rise in blood sugar. Notably absent from the reports is the ravenous hunger that comes with the older compounds in this class, which is consistent with what the pharmacology predicted.

What we don't know: what nightly use does over months or years, in anybody. The only human study ran in a hospital, in people recovering from surgery, for a matter of days, and it was asking whether their gut restarted. There's no approved product, so no prescribing information and no post-market record exists. The selectivity finding, that cortisol stays put, was established at particular amounts in early work and shouldn't be assumed to hold at any amount someone chooses to run.

Contraindications: active cancer is the caution carried across this whole category, on the reasoning that raising growth hormone and IGF-1 signalling could in principle accelerate cell growth. It has not been shown to and has not been ruled out. Pregnancy, breastfeeding and use in minors have no data. Diabetes and prediabetes are where the blood sugar effect stops being theoretical.

Drug interactions: anything affecting blood sugar control. Because this compound works on the ghrelin receptor, anything else acting on appetite or gut motility is in territory nobody has studied alongside it.

Ipamorelin vs. GHRP-2

GHRP-2 is the compound ipamorelin largely replaced, and comparing them is the clearest way to see what ipamorelin's selectivity actually buys you. They work on the same receptor and cost about the same.

Choose ipamorelin if: you want the growth hormone effect without the cortisol, the prolactin or the hunger, which for most people in this audience is the entire question.

Choose GHRP-2 if: a somewhat larger release is the priority and the side effects are acceptable to you, or appetite stimulation is something you actively want.

See the GHRP-2 research notes for its own background and pricing, the ipamorelin and GHRP-6 comparison for the same argument against the other older compound in the class, and the ipamorelin and sermorelin comparison if you're weighing the two sides of the pituitary against each other.

Storage and handling

Lyophilized powder: refrigerate at 2 to 8°C and protect from light. Kept frozen, the unreconstituted powder is commonly described as stable considerably longer, which is the practical answer to a 10 mg vial you can't use inside 28 days. Take lot-specific stability from the vendor's certificate of analysis.

Reconstituted solution: refrigerate and use within about 28 days. Some vendors quote four to six weeks for this compound specifically; the shorter figure is the safer planning number and it's the one the arithmetic above uses. Avoid repeated freeze-thaw cycles.

Signs of degradation:

• Cloudiness or visible particles in a solution that was previously clear
• Discoloration of the powder or the reconstituted liquid
• A head-rush effect that reliably showed up and then stops, though that's a soft signal at best

FAQ

What does selective actually mean here? That it raises growth hormone without measurably raising cortisol or prolactin at the amounts studied, which the older compounds in its class do.

Will it make me hungry? Little to none is reported, which is unusual for something working on the ghrelin receptor and is most of why people choose it.

How much do people run? 200 to 300 mcg once nightly before sleep on an empty stomach. Nothing distinguishes the two ends of that range in any source we can find.

Why the empty stomach? Food raises insulin and insulin blunts growth hormone release, so a dose after dinner works against itself. This is the part of the protocol worth being strict about.

Which vial should I buy? At once nightly, a 5 mg vial fits inside the 28-day window and a 10 mg one doesn't, so the smaller vial is usually the better buy despite the worse per-milligram price.

Should I stack it with CJC-1295? That's how most people run it, and the no-DAC version is the right partner because its timing matches. See the blend guide and protocols for the combined schedule, and for the ratio problem premixed vials create.

Has it been studied in people? Once, in patients recovering from bowel surgery, looking at gut function. Nothing in people has examined sleep, recovery or body composition.

How is it stored? Refrigerated and out of the light, frozen if unreconstituted and being kept a while, used within about 28 days once mixed.

Bottom line

Key dosing takeaways:

• 200 to 300 mcg once nightly on an empty stomach is what circulates, and the empty stomach matters more than which end of that range you pick
• The selectivity claim is the well-supported part of this compound; the sleep and recovery claims are community experience, not evidence
• The only human study asked whether it restarted gut function after surgery, and it did

Best practices:

• Buying the 5 mg vial rather than the 10 mg one at once-nightly dosing, since the 28-day window can only reach 5.6 mg
• Keeping the dose two hours clear of food in both directions
• Not stacking it with GHRP-2 or GHRP-6, which puts back exactly the effects ipamorelin was chosen to avoid

Works best for people who:

• Want growth hormone support without more cortisol, and without being hungry at bedtime
• Are primarily after sleep and recovery rather than one measurable outcome
• Will keep to the empty-stomach timing, which is the part that actually has a mechanism behind it

Ipamorelin is sold for research, and the single human study on it asked a question unrelated to why anyone reading this would take it. You already know that. You're an adult making an informed call about your own body, and that's yours to make.