What Is Ipamorelin?

Ipamorelin is a synthetic pentapeptide, which means it has five amino acids. Novo Nordisk developed it in the 1990s as one of the first selective growth hormone secretagogues. It binds the ghrelin receptor, formally called GHS-R1a, and prompts the pituitary to release growth hormone. Its half life sits around two hours, so it lasts longer than sermorelin but far shorter than long acting analogs.

Why Researchers Call It Selective

Older ghrelin mimics, such as GHRP-6 and hexarelin, also raise cortisol, prolactin, and appetite. Ipamorelin largely avoids those effects, even at doses far above what is needed to release growth hormone. That clean profile explains why it became the default choice for studies that need to isolate growth hormone effects.

Where the Human Evidence Stands

Human data come mostly from short pharmacology studies of growth hormone release. A Phase 2 trial in postoperative bowel paralysis did not lead to an approved drug, and the program stopped. No controlled trial has shown that ipamorelin builds muscle, burns fat, or slows aging.

Ipamorelin vs Sermorelin: The Core Differences

The most important distinction involves the receptor. Sermorelin copies the first 29 amino acids of natural growth hormone releasing hormone, so it acts on the GHRH receptor. Ipamorelin acts on the ghrelin receptor instead. As a result, the two peptides send different signals to the same gland.

	Ipamorelin	Sermorelin
Receptor	Ghrelin (GHS-R1a)	GHRH receptor
Length	5 amino acids	29 amino acids
Half life	About 2 hours	About 10 to 20 minutes
Effect on GH pulse	Starts the pulse	Amplifies the pulse
Cortisol and prolactin	Minimal rise	No meaningful rise
Appetite	Slight at most	None
History	Never approved	Former FDA approved product, since discontinued
Typical dosing	One to three times daily	Daily, usually at bedtime

Sermorelin carries one real advantage: a regulatory history. The FDA once approved a branded sermorelin product for diagnosing and treating growth hormone deficiency in children, and the manufacturer later discontinued it for commercial reasons. Ipamorelin has no such history. On the other hand, ipamorelin lasts longer in the body and acts through the ghrelin route, which some researchers prefer.

Many labs avoid choosing at all. Because the two act on different receptors, they stack well, and a sermorelin and ipamorelin blend remains a common research design. Read more about sermorelin on our Sermorelin page.

Buy Ipamorelin: Choose Your Format

Each vial ships with an HPLC chromatogram, an identity result, and a handling guide.

Ipamorelin 5mg Vial

The 5mg vial fits conservative protocols and first time studies. Researchers split the powder into small daily amounts, so one vial covers several weeks.

Contents: ipamorelin 5mg
Purity: 98 percent minimum, HPLC verified, third party tested
Includes: reconstitution guide, storage card, COA
Delivery: 1 to 2 business days, discreet packaging, full tracking

Ipamorelin 10mg Vial

The 10mg vial supports full cycles and lowers the cost per milligram. Teams that run daily protocols over eight to twelve weeks usually choose it.

Contents: ipamorelin 10mg
Purity: 99 percent minimum, HPLC verified, third party tested
Includes: protocol reference, reconstitution guide, COA
Delivery: 1 to 2 business days, discreet packaging, full tracking

Looking for a Blend?

Researchers often pair ipamorelin with a GHRH analog. Consequently, we offer the CJC 1295 and ipamorelin blend and a CJC 1295 without DAC vial, and you can explore Stacks and Bundles.

Tesamorelin vs Ipamorelin vs Sermorelin

Three way comparisons attract plenty of searches, so here is the full picture. Tesamorelin mimics growth hormone releasing hormone, like sermorelin, but it uses a longer 44 amino acid chain with a stabilizing group. The FDA approved it in 2010 for reducing abdominal fat in people with HIV associated lipodystrophy.

	Ipamorelin	Sermorelin	Tesamorelin
Class	Ghrelin mimetic	GHRH analog	GHRH analog
Length	5 amino acids	29 amino acids	44 amino acids
Approval	None	Historical, discontinued	FDA approved, narrow indication
Human trial depth	Short studies	Older studies	Large randomized trials
Main research angle	Selective GH pulse	GH axis support	Visceral fat in lipodystrophy

Tesamorelin offers by far the deepest human dataset, so researchers who prioritize documented evidence lean toward it. Ipamorelin and tesamorelin also pair together, and the tesamorelin and ipamorelin combination appears often in protocol discussions. However, nobody has tested that pairing in a controlled human trial.

Ipamorelin vs MK 677 and CJC 1295

MK 677, also called ibutamoren, acts on the same ghrelin receptor as ipamorelin, but it does so as a small molecule you swallow, and it acts for a full day. That long action often causes strong hunger, water retention, and changes in blood sugar. Ipamorelin, in contrast, acts briefly and selectively.

CJC 1295 sits on the other receptor. It mimics GHRH, and the version with DAC lasts for days. Researchers who compare all three usually conclude that ipamorelin offers the cleanest profile, CJC 1295 offers pulse amplification, and MK 677 offers convenience at the price of more side effects.

Where to Buy Ipamorelin Safely

Mislabeling runs rampant in this family, because ipamorelin, GHRP-2, GHRP-6, and hexarelin all look like identical white powder. Therefore, apply the checklist below to every vendor, including us.

What to verify	Peptide Near Me	Typical marketplace seller
Compound named clearly on label and COA	Yes	Often vague
Mass spectrometry confirms identity	Yes	Almost never
HPLC purity result per lot	Yes	Sometimes
Lot number matches the vial	Yes	Rarely
Research use only labeling	Yes	Inconsistent
Shipping time	1 to 2 business days	5 to 10 days

Each secretagogue has a different molecular weight, so a proper identity test exposes a swap instantly. Questions? Contact our team.

Ipamorelin Dosage and Reconstitution Calculator

No regulator has approved a dose. Community and research sources describe the ranges below, so treat them strictly as reference points.

Parameter	Commonly reported range
Single dose	100 to 300 mcg
Frequency	One to three times daily
Timing	Fasted, or before bed
Gap after meals	Two to three hours
Course length	8 to 12 weeks, then a break

Researchers dose away from meals, because a rise in blood sugar and insulin blunts the growth hormone pulse. Moreover, they cycle, since no one has studied long term continuous use.

How to Convert Micrograms Into Syringe Units

A simple example shows the math. Mix a 5mg vial with 2.5 mL of bacteriostatic water. That gives 2,000 mcg per mL. A standard insulin syringe holds 100 units per mL, so each unit contains 20 mcg.

Target dose	Units on a 100 unit syringe
100 mcg	5 units
200 mcg	10 units
300 mcg	15 units

For a 10mg vial, add 5 mL of water to keep the same concentration. For a 10mg blend that holds 5mg of CJC 1295 and 5mg of ipamorelin, add 5 mL of water to get 1,000 mcg per mL of each peptide, which equals 10 mcg of each per unit. Always double check your math against the handling guide.

Reconstitution Basics

Add bacteriostatic water slowly along the vial wall. Swirl gently, and never shake. Keep dry powder cool and dark, and refrigerate once mixed. Use the reconstituted vial within the window printed in the handling guide.

Ipamorelin Oral: Does It Work?

Searches for ipamorelin oral keep rising, because swallowing a capsule sounds easier than injecting. Unfortunately, peptides face digestive enzymes and poor absorption through the gut. Researchers have published little reliable data on oral ipamorelin, and the established research uses injections. Consequently, we sell the injectable form only, since it matches the documented route.

Ipamorelin Before and After: What to Expect

Photos labeled before and after fill social media, but they prove very little. Lighting, posture, diet, training, and timing all change how a body looks, and none of those photos come from controlled studies. In fact, no randomized trial has measured body composition outcomes with ipamorelin. Researchers who track results should rely on lab work, such as IGF 1 levels, instead of photos. We make no promises about appearance or performance.

Side Effects and Safety Considerations

Researchers report flushing, tingling, headache, mild water retention, and injection site redness. Additionally, growth hormone axis compounds can shift glucose handling, so people with diabetes should take particular care. Because long term human data do not exist, cumulative effects remain unknown.

Who Should Avoid It

Pregnant and breastfeeding individuals should not use this compound. People with a cancer history, diabetes, or pituitary conditions need physician guidance first. Competitive athletes also face a violation, since WADA prohibits growth hormone releasing agents.

Regulatory Status in 2026

The FDA has not approved ipamorelin for any use. According to the agency’s Category 2 page, ipamorelin remains on that list, which blocks routine compounding and cites immunogenicity and safety concerns. The April 2026 withdrawal covered twelve other peptides but not this one, although some trackers report otherwise. Consequently, no US pharmacy can lawfully compound it under current published rules, while sermorelin follows a separate path.

We sell ipamorelin only as a research compound, not for human or veterinary use and not as a supplement. Rules shift quickly, so check the FDA compounding page and the literature on PubMed before you order.

Ready to Buy Ipamorelin?

You now understand how ipamorelin differs from sermorelin, tesamorelin, and MK 677, and where the evidence ends. One decision remains, and it controls what arrives at your door: the source. Every vial we ship carries a lot matched COA, and we confirm identity by mass spectrometry before any batch enters inventory. Orders placed before 2pm ship the same day, and a real team member answers every message.

Add the 5mg vial to your cart. Add the 10mg vial to your cart. Ask us a question first.

Discreet outer packaging. Full tracking from dispatch. Delivery to all 50 states.

Exploring more options? Visit the Weight and Metabolism category or the Recovery and Repair category.

Frequently Asked Questions About Ipamorelin vs Sermorelin

Which is better, ipamorelin or sermorelin?

Neither wins outright. Ipamorelin acts on the ghrelin receptor and lasts longer, while sermorelin acts on the GHRH receptor and has a regulatory history. Many researchers use both.

Can I combine ipamorelin and sermorelin?

Researchers commonly pair them because they act on different receptors. However, no controlled human trial has tested the combination.

How does ipamorelin compare with tesamorelin?

Tesamorelin holds FDA approval for a narrow indication and has large trials behind it. Ipamorelin has no approval and far less human data.

How does ipamorelin compare with MK 677?

Both act on the ghrelin receptor. MK 677 is oral and works for a full day, so it often causes stronger hunger and water retention.

Where can I buy ipamorelin online?

You can order it from our store as a research compound. Wherever you shop, confirm that the seller publishes a lot matched COA and an identity result.

What is the usual ipamorelin dosage?

No standard exists. Community sources describe 100 to 300 mcg, one to three times daily, in cycles of 8 to 12 weeks.

Does oral ipamorelin work?

Little reliable data exist. Peptides absorb poorly through the gut, and the established research uses injections.

Does ipamorelin raise cortisol or prolactin?

Not meaningfully, even at high doses. That selectivity sets it apart from GHRP-6 and hexarelin.

What are the side effects?

Researchers report flushing, headache, water retention, and injection site reactions. No controlled study confirms long term safety.

Is ipamorelin legal in the US?

Retailers sell it for research use only. The FDA has not approved it, and it sits on the Category 2 list, so pharmacies cannot lawfully compound it.