WHAT THE DRUG IS AND WHY IT MATTERS
CJC-1295 is a GHRH analog, meaning a lab version of a natural growth signal.
This page covers the small studies, the sport ban, and why one version lingers while the other leaves quickly.
CJC-1295 has not been approved for people
CJC-1295 uses 29 building blocks of protein to mimic a natural hormone message. DAC names the longer version; an extra part keeps the drug in blood for days [1].
No major public agency has approved CJC-1295 for people. The World Anti-Doping Agency places it in Section S2, its group for growth drugs, even between contests.
In 2024, an FDA group reviewed the drug for the 503A list. Named items on that list may be used as bulk ingredients by certain drug-mixing pharmacies; the drug was not added [10].
Only a few small human studies exist [1][2][3]. Researchers studying healthy adults found that long-form levels fell by half over 5.8 to 8.1 days [1].
DAC carries an extra part that links the drug with albumin. This protein circulates in blood, and the link keeps the drug there for days [1].
The CJC-1295 DAC vs no-DAC page compares both versions. Modified GRF (1-29) names the version without the blood-protein link, so it leaves much sooner [11].
Growth hormone rose for days after one injection, yet the body's usual short releases still occurred. IGF-1, a blood test tied to growth, also stayed high for more than a week [1][3].
We still do not know whether CJC-1295 is safe or helpful over time. You can read the main questions, the human research, or the study amounts.
The sport and FDA page explains what the public rules mean for you. The full source list gives the study behind each fact; this is not a use plan.
What is CJC-1295?
It is a drug modeled on a hormone message that makes a small gland below the brain release growth hormone [1]. DAC lasts longer by linking with a blood protein; Modified GRF 1-29 lacks that link [1][11].
What does CJC-1295 do?
The drug makes a small gland below the brain send out growth hormone, raising IGF-1, a blood test tied to growth [1][2]. Small studies recorded higher growth hormone and IGF-1 for several days [1][3].
CJC-1295 is a GHRH analog, a longer-lasting copy
GHRH analog means a drug modeled on a natural hormone message. It makes a small gland below the brain send out growth hormone, raising IGF-1, a blood test tied to growth [1][2].
The natural message leaves your blood within minutes. Changes to building blocks at four numbered places—2, 8, 15, and 27—help CJC-1295 resist quick breakdown [1].
DAC is an extra part on the longer version. It links the drug with albumin, a protein carried in blood [2].
Because of that link, the longer version acts for days after one shot. The other version lacks the link and leaves much sooner.
CJC-1295 is related to sermorelin and tesamorelin, two drugs modeled on the same hormone message. Those drugs have had approved uses, but CJC-1295 has not.
A 2025 medical review described how these related drugs work [12]. The review does not make CJC-1295 an approved drug.
CJC-1295 is a peptide, not a steroid
Peptides are short chains built from pieces of protein. CJC-1295 has 29 building blocks of protein and isn't a steroid [1][2].
DAC links CJC-1295 with albumin, a protein found throughout the blood. Labs list the joined drug at about 66 kilodaltons, a weight that helps them identify tiny molecules.
That lab weight says nothing about safety or benefit. For a person, the drug's time in the body matters more than its chemical formula.
Your stomach would break this small chain apart. Published studies therefore used injections just under the skin, not pills [1][3].
In one drug-testing case, a lab found CJC-1295 in an unlabeled product [6]. The result named what the product held; it did not show that the product was safe.
Studies answer only a few questions
Legal CJC-1295 explains medical studies and public rulings about the drug. It isn't a clinic, does not sell anything, and can't give you medical advice or a dose.
Only a few early human studies exist, plus one stopped Phase 2 study—a middle-stage test of benefit and safety [1][3][7]. Most online CJC-1295 use plans did not come from controlled human trials.
For a quick route through the facts, open what CJC-1295 is, study amounts, or drug-testing rules. The full source list lets you read the studies themselves.
Personal reports don't prove an effect
The Effects & Safety page tells you which claims came from people trying the drug themselves. It keeps those claims apart from trial findings and starts with the known worries.