Ipamorelin vs CJC-1295: Two Receptors, One Pulse, and Why They Are Usually Combined

Every figure is an all-in monthly price covering the medication, physician review, refill management and shipping. There is no separate membership fee. Current pricing always lives on each product page; the table is a guide to which product fits which goal.

The real difference is the door, not the strength

People often ask which is "stronger." They are not two strengths of one thing. The pituitary listens to two inputs, GHRH from the hypothalamus and ghrelin-type signals from the gut, through separate receptors on the same cells. Ipamorelin supplies the ghrelin signal; CJC-1295 supplies the GHRH signal. Together they have been described as more than additive since the early 1990s, because one also takes the somatostatin brake off. That is the whole reason CJC-1295 / Ipamorelin exists as one vial. Neither is a substitute for growth hormone; both depend on a pituitary that can still respond.

The committee evaluated each substance for the specific uses in its nomination, against FDA-approved drugs that already exist for those uses. A vote is a recommendation, not a ban. Both remain legal to prescribe and dispense as compounded medications, and compounded medications are not FDA approved. Are peptides FDA approved explains the difference.

Both are injected under the skin (subcutaneously) into the abdomen or thigh, rotating sites, Monday through Friday with weekends off. The figures below are arithmetic on the vial strength, on a U-100 insulin syringe where 1 unit is 0.01 mL.

For the combination vial, here is what different syringe marks would contain. This is math only, not a dosing suggestion:

One thing the table shows: a standard dose of the combination carries more ipamorelin (0.6 mg) than a standard dose of ipamorelin alone (0.25 mg), because the combination vial is more concentrated. Both are fixed by the formulation, and you never adjust one peptide against the other. Your directions are printed on the vial, and your physician sets them after reviewing your intake. Both ship refrigerated with ice packs, sterile syringes and alcohol prep pads; refills run every 28 days, one vial per fill. The combination is also available as a pre-filled Pen cartridge.

Bloodwork is not required for any Pepti treatment. If your physician wants labs for your care, they'll ask through your account.

Ipamorelin. Reported as well tolerated in the volunteer study and the seven-day surgical trial. What is reported clinically is mostly short-lived: headache, flushing or warmth after injection, hunger, light-headedness, and injection-site redness or soreness. More: ipamorelin side effects.

CJC-1295 / Ipamorelin. The 2006 CJC-1295 trials reported mainly injection-site reactions and headache. Clinically, people report injection-site redness, a brief flush, headache, hunger, and, with the growth hormone rise, water retention or tingling in the hands.

For both, the class concerns of anything that raises growth hormone and IGF-1 apply: blood glucose can drift up, fluid can be retained, and because IGF-1 supports tissue growth, a personal history of cancer is raised at intake. Stop and contact your care team for any reaction that is severe or spreading. Difficulty breathing or swelling of the face or throat needs emergency care: call 911.

Both peptides are known to raise growth hormone in humans: ipamorelin in a 1999 intravenous volunteer study, CJC-1295 in the 2006 trials of the DAC form. Beyond that, the benefits people are prescribed them for, sleep, recovery and body composition, are inferred from what growth hormone does, not measured in any trial of either peptide or the blend. The only randomised trial of ipamorelin in patients did not beat placebo, and the no-DAC form of CJC-1295 has no trials of its own. The honest framing is "known to raise growth hormone; benefits beyond that are inferred from physiology and clinical experience."

Neither can be bought legitimately without a prescription. Sites selling them "for research use only" are not accountable for what is in the vial: identity, purity, sterility and concentration are untested. The prescription route:

1. Complete a free online intake covering your history, medications and what you want help with.
2. A physician licensed in your state reviews it, usually within 24 hours.
3. If it is appropriate, a PCAB-accredited, FDA-registered US 503A pharmacy compounds it to that prescription. Lot test results are published at /quality/lab-results.
4. It ships refrigerated with your directions printed on the vial.
5. Your care team stays reachable for questions and side effects.

Pepti is cash-pay and does not bill insurance. Step-by-step pages: how to get ipamorelin prescribed online and how to get CJC-1295 / Ipamorelin prescribed online.