Ipamorelin is what you pin before bed to get a clean growth hormone burst while you sleep. It's a compound that nudges your body into releasing its own growth hormone. The science word is 'secretagogue' -- something that tells your body to release a hormone. Sounds like a secret agent, less cool. It only touches growth hormone. It doesn't spike cortisol or prolactin, which is a big deal if you know how messy older secretagogues like GHRP-6 were. Most people run it with CJC-1295 (no DAC) because they hit different pathways and together they create a stronger, more natural growth hormone wave. The effects are subtle but cumulative. Better sleep first, then faster recovery, then your body composition shifts over weeks without changing anything else. Pin it fasted, at least 2 hours after your last meal. Carbs and fats blunt the growth hormone release.
Ipamorelin Protocol
Dose: 200-300mcg per day | Frequency: Once nightly, on an empty stomach (2+ hours after eating) | Cycle: 8-12 weeks on, 4 weeks off | Route: SubQ
Take on a completely empty stomach before bed. Food (especially carbs and fats) blunts the growth hormone release. Most people combine this with CJC-1295 no DAC in the same syringe.
Ipamorelin Effects
Improved sleep quality (70%). Deeper sleep is usually the first thing people notice, often within the first week
Faster recovery (65%). Reduced soreness and faster bounce-back from training
Improved body composition (55%). You lose fat and keep (or add) muscle over 8-12 weeks. Slow burn, not overnight.
Better skin and hair (40%). When your growth hormone goes up, your body starts making more collagen and keratin as a side effect. Translation: tighter skin and thicker hair, and you didn't even ask for it.
Ipamorelin Side Effects
Water retention (20%). You might look a little puffy the first week or two. It levels out. Drink more water, weirdly.
Tingling or numbness (15%). Tingly hands, like mild carpal tunnel. That's your growth hormone running high. It means it's working, but drop the dose a bit.
Headache (12%). Mild headache when you first start. Usually gone after a few days.
Injection-site irritation (8%). Small red mark where you pinned. Clears up fast. Rotate your spots.
Ipamorelin Dosing by Use Case
Condition
Dose
Duration
Notes
Sleep optimization and growth hormone restoration
200-300mcg nightly, fasted
8-12 weeks on, 4 weeks off
The entry-level use case. Pin before bed on an empty stomach. The growth hormone burst lines up with your deepest sleep phase (slow-wave sleep), making it even deeper. Most people notice sleep improvement within the first week. Stack with CJC-1295 (no DAC) for a stronger pulse.
Body recomposition (fat loss + lean mass)
200-300mcg nightly, with CJC-1295 100mcg
12 weeks on, 4 weeks off
The standard protocol. Gradual fat loss and lean muscle building without changing diet or training. Results are subtle weeks 1-4, visible weeks 8-12. This is a slow build, not a dramatic transformation. The combination with CJC-1295 (no DAC) creates a more complete growth hormone wave than either one solo.
Recovery from training or injury
200-300mcg nightly, with optional BPC-157
8-12 weeks
Growth hormone accelerates tissue repair. Adding BPC-157 targets the specific injury while ipamorelin provides systemic recovery support. Pin ipamorelin at night (fasted). Pin BPC-157 near the injury site during the day. Two separate protocols that complement each other.
Anti-aging and skin/hair improvement
200mcg nightly
12 weeks on, 4 weeks off, repeated
Higher growth hormone levels tell your body to make more collagen (the stuff that keeps skin tight) and keratin (the stuff that makes hair and nails). These are bonus effects, not the main event.. Skin tightens. Hair thickens. Nails grow faster. These are secondary effects of restored growth hormone levels, not the primary mechanism. Expect subtle improvements over months, not weeks.
Ipamorelin Results Timeline
Week 1-2, Sleep improves: Deeper sleep is the first noticeable effect. You may feel more rested on the same hours. Vivid dreams are common. Some water retention and mild puffiness in the first week. That settles.
Week 2-4, Recovery accelerates: Training soreness decreases. Recovery between sessions shortens. You may notice you can handle higher volume or frequency without the same fatigue.
Week 4-8, Body composition shifting: Subtle changes in how clothes fit. Midsection tightens. Some lean muscle building. These are gradual, not dramatic. If you're tracking body composition, this is when the numbers start moving.
Week 8-12, Peak cumulative effects: Full cycle benefits. Skin looks better. Hair may be thicker. Body composition noticeably different from baseline. This is the end of a standard cycle. Take 4 weeks off to let your pituitary reset, then repeat.
Frequently Asked Questions About Ipamorelin
What is ipamorelin?
Ipamorelin is a growth hormone secretagogue (GHS). It nudges your pituitary gland (the hormone control center in your brain) to release its own growth hormone in a burst-and-fade pattern, matching the natural growth hormone bursts your body already releases during deep sleep. What makes it different from older GH-releasing peptides like GHRP-6 is selectivity. Ipamorelin only triggers growth hormone release. It doesn't spike cortisol, prolactin, or appetite. That selectivity is why it's considered the cleanest growth hormone releaser available.
What is the best ipamorelin dosage?
200-300mcg subcutaneously once nightly on an empty stomach. Most people dose at bedtime, at least 2 hours after their last meal. Carbs and fats blunt the growth hormone burst, so the fasted window matters. Some protocols run 100-200mcg 2-3 times daily (morning fasted + bedtime), but the nightly single dose is the most common and practical. For the CJC-1295 stack, add 100mcg CJC-1295 (no DAC) in the same syringe.
What are the side effects of ipamorelin?
Water retention (20%) in the first 1-2 weeks, usually settles. Tingling or numbness in hands (15%), which is a sign your growth hormone is elevated. Mild headache (12%) early on. Injection-site irritation (8%). The tingling is like mild carpal tunnel. If it's persistent, lower the dose. None of these are serious. The absence of cortisol and prolactin spikes is the main advantage over GHRP-6 and other older secretagogues.
What is the CJC-1295 and ipamorelin stack?
The most common growth hormone stack. Ipamorelin triggers growth hormone release through the hunger-hormone receptor (ghrelin/GHSR). CJC-1295 (no DAC) triggers it through a different receptor (GHRH), the one that directly tells your pituitary to go. Two different signals, one bigger pulse. Together they produce a stronger, more natural growth hormone wave than either alone. Standard protocol: 100mcg CJC-1295 (no DAC) + 200-300mcg ipamorelin, same syringe, subcutaneously, nightly before bed on an empty stomach. Use CJC-1295 without DAC (Drug Affinity Complex). The DAC version creates sustained growth hormone elevation instead of burst-and-fade release, which can cause more side effects.
Why empty stomach? What counts as fasted for ipamorelin?
Eating spikes your insulin and blood sugar, and both of those squash your growth hormone release. Eating, especially carbs and fats, raises both. The fasted window ensures your insulin is at baseline when the growth hormone burst fires. At least 2 hours after your last meal. No food for 30 minutes after pinning (some protocols say 60 minutes). Water, black coffee, and plain electrolytes are fine. Protein shakes count as food. BCAAs count as food. If in doubt, just pin right before bed.
Ipamorelin vs GHRP-6: what's the difference?
Both are growth hormone releasing peptides (GHRPs), but the side effect profiles are completely different. GHRP-6 triggers a strong growth hormone burst but also spikes cortisol, prolactin, and intense hunger. Ipamorelin triggers growth hormone only. No cortisol spike, no prolactin spike, no hunger. GHRP-6 is sometimes preferred for bulking (the appetite increase is a feature). Ipamorelin is preferred for recomposition, anti-aging, and sleep protocols where you don't want to eat at midnight after pinning.
How do you reconstitute ipamorelin?
Add 2mL of bacteriostatic water to a 5mg vial. That gives you 2,500mcg per mL. For a 200mcg dose, draw 8 units on a U-100 insulin syringe. For 300mcg, draw 12 units. If stacking with CJC-1295 (no DAC), you can draw both into the same syringe. Reconstitute each vial separately, then draw from both. Aim the water at the glass wall, not directly on the powder. Swirl gently. Never shake. Refrigerate after reconstitution. Use within 3-4 weeks.
How long does it take for ipamorelin to work?
Sleep improvement: 1-2 weeks. Recovery benefits: 2-4 weeks. Body composition changes: 4-8 weeks. Skin and hair improvements: 8-12 weeks. The effects are cumulative, not acute. You won't feel a rush or a pump. The first sign is usually waking up feeling more rested. Standard cycles are 8-12 weeks on, 4 weeks off. The off period lets your pituitary receptors reset so the next cycle is equally effective.
Emerging evidence. Ipamorelin is one of the cleaner growth hormone releasers. It triggers a growth hormone burst without spiking cortisol or prolactin, which older compounds in this class were notorious for. Small human studies exist showing it works as intended. Not FDA-approved, but the data showing it only touches growth hormone and leaves everything else alone is solid.
Approval status: Not approved
References
Raun K, Hansen BS, Johansen NL, et al. Ipamorelin, the first selective growth hormone secretagogue. Eur J Endocrinol, 1998. PMID 9849822
Gobburu JV, Agersoe H, Jusko WJ, et al. Pharmacokinetic-pharmacodynamic modeling of ipamorelin, a growth hormone releasing peptide, in human volunteers. Pharm Res, 1999. PMID 10496658
Johansen PB, Nowak J, Skjaerbaek C, et al. Ipamorelin, a new growth-hormone-releasing peptide, induces longitudinal bone growth in rats. Growth Horm IGF Res, 1999. PMID 10373343
Svensson J, Lall S, Dickson SL, et al. The GH secretagogues ipamorelin and GH-releasing peptide-6 increase bone mineral content in adult female rats. J Endocrinol, 2000. PMID 10828840
Andersen NB, Malmlof K, Johansen PB, et al. The growth hormone secretagogue ipamorelin counteracts glucocorticoid-induced decrease in bone formation of adult rats. Growth Horm IGF Res, 2001. PMID 11735244
Venkova K, Fraser GL, Hoveyda HR, et al. Efficacy of ipamorelin, a novel ghrelin mimetic, in a rodent model of postoperative ileus. J Pharmacol Exp Ther, 2009. PMID 19289567
Storage
Lyophilized: Refrigerate at 2-8C. Stable for 12+ months sealed.
Reconstituted: Refrigerate. Use within 3-4 weeks.
Water: Bacteriostatic water, 2mL per 5mg vial.
Needle: 29-31 gauge, 0.5 inch for subcutaneous injection
These statements have not been evaluated by the FDA. This content is for educational purposes only. Consult a healthcare professional before starting any protocol. vialprep sells injection supplies, not compounds.
