
CJC-1295Benefits, Dosage & Interactions
CJC-1295 is a synthetic peptide classified as a Growth Hormone-Releasing Hormone (GHRH) analog. It was originally developed with the intention of treating medical conditions such as lipodystrophy, a disorder characterized by abnormal fat distribution, and growth hormone deficiency. Research on CJC-1295 focuses on skin and hair and tissue recovery.
How much CJC-1295 do people take?
Single subcutaneous amounts of 30, 60, 125 and 250 µg/kg were studied in the phase 1 trial. Route reported: Subcutaneous injection. Frequency reported: Single or weekly/biweekly administration in the phase 1 protocol. These are amounts documented in the cited studies and labels for CJC-1295 — they are reported for reference, not a recommendation. Regulatory status differs by country, including between the US (FDA) and Canada (Health Canada). Confirm any amount with a licensed clinician before you take it.
See the full reported protocol and its sourcesResearched by DoseRoutine Research TeamReviewed for accuracy by Nicholas Alexander, RSE, SO, PMPLast updated Educational reference only — not medical advice. Always confirm dosing and safety decisions with a licensed clinician.
One published human randomized trial; results not yet replicated.
What published protocols report
Ranges documented in the literature, shown for reference. DoseRoutine does not recommend an amount — your prescriber or the product label sets the dose.
- Reported amounts
- Single subcutaneous amounts of 30, 60, 125 and 250 µg/kg were studied in the phase 1 trial[1]
- Route studied
- Subcutaneous injection[1]
- Frequency
- Single or weekly/biweekly administration in the phase 1 protocol[1]
- Cycle length
- Up to 49 days of follow-up in the published trial[1]
- Half-life
- Approximately 5.8–8.1 days for the DAC-conjugated form[1]
- Storage
- Lyophilized peptide refrigerated; reconstituted solution refrigerated[1]
Worked example: a 2 mg vial reconstituted with 2 ml of bacteriostatic water gives 1 mg/ml, so a 100 mcg amount measures 10 units on a U-100 syringe. Open this in the reconstitution calculator.
Reported for CJC-1295 in the cited sources. Published ranges are not dosing advice.
Mixing CJC-1295: bacteriostatic water and syringe units
The vial arrives as dry powder. How much water you add sets the strength, and the strength sets the mark you draw to on the syringe. The table assumes a 2 mg vial and a 100 mcg example draw on a U-100 insulin syringe, where 100 units is one millilitre. If your vial is a different size, scale it — the arithmetic is the same.
| Bacteriostatic water added | Resulting strength | 100 mcg draws to |
|---|---|---|
| 1 mL | 2 mg/mL | 5 units |
| 2 mL | 1 mg/mL | 10 units |
| 3 mL | 0.67 mg/mL | 15 units |
Units, not millilitres. Insulin syringes are marked in units, and mixing up mcg and mg on a peptide label is the single most common error people report. Check the label twice. Run your own vial through the calculator.
Storage and stability
- Before mixing
- Sealed and still as a dry powder, CJC-1295 vials are normally kept in the fridge at 2–8 °C, out of light. Short spells at room temperature during shipping are the norm for lyophilized peptides and are not, on their own, a sign the vial is spoiled.
- After mixing
- Once bacteriostatic water goes in, the vial belongs in the fridge and is generally treated as good for about 28 days — that is how long the benzyl alcohol in bacteriostatic water is relied on to hold back bacterial growth. Plain sterile water has no preservative, so a vial mixed with it is a single-session vial. Never freeze a reconstituted vial.
- When to throw it out
- A properly mixed vial is clear. Cloudiness, floating strands, a color change or powder that will not go into solution after gentle swirling all mean the vial should be discarded rather than used. Shaking a peptide vial hard is the usual cause — swirl it, or run the water down the inside wall of the vial instead of onto the powder.
Handling and shelf-life figures describe general practice for lyophilized peptides. They are not a dose and not medical advice — your prescriber or the product label sets the amount.
CJC-1295 compared with similar compounds
| Attribute | Sermorelin | Tesamorelin | CJC-1295 | Ipamorelin |
|---|---|---|---|---|
| Class | GHRH (1-29) analog | Stabilized GHRH analog | GHRH analog (DAC-conjugated) | Selective ghrelin receptor (GHS-R) agonist |
| Route | Subcutaneous injection | Subcutaneous once daily | Subcutaneous injection | Subcutaneous injection |
| Half-life | ~11–12 minutes | ~26–38 minutes | ~5.8–8 days with DAC | ~2 hours |
| Evidence grade | Moderate | Strong | Limited | Preclinical |
| Oral stability | Not orally available | Not orally available | Not orally available | Not orally available |
| Typical published cycle | Daily dosing in published studies | 26–52 weeks in the pivotal trials | Weekly dosing in the published phase 1 work | No established human protocol |
| Main studied use | Growth hormone secretion / GH deficiency testing | HIV-associated visceral adiposity | Sustained GH/IGF-1 elevation | Selective GH release without prolactin/cortisol rise |
References & evidence
Documents the CJC-1295 entry is written from. Each number matches an inline marker above.
- [1]Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adultsTeichman SL, Neale A, Lawrence B, et al. · Journal of Clinical Endocrinology & Metabolism · 2006 · Peer-reviewed · PMID 16352683
References & Evidence
Sources on this page that document CJC-1295 dosing, timing and safety.
- [1]National Center for Biotechnology Information View source
Educational information only — not medical advice. Dose ranges vary by person, indication and prescriber.
What is CJC-1295 studied for?
What is CJC-1295?Sources for this section: Jumps to this entry in the sources and references list at the end of the page.
What does the research say about CJC-1295?
Tap a section to expand.
Source for this section: Sources for How does CJC-1295 work?: Jumps to this entry in the sources and references list at the end of the page.
Source for this section: Sources for When should you take CJC-1295?: Jumps to this entry in the sources and references list at the end of the page.
Put it into practice
Reading about CJC-1295 is the first step — DoseRoutine helps you act on it. These free tools turn what you just learned into a routine.
What interacts with CJC-1295?
| Interacts with | Severity | Type | What happens | What to do |
|---|---|---|---|---|
| IGF-1 LR3 | Caution | Compound pairConfidence: theoretical | A GH secretagogue plus exogenous IGF-1 pushes the same GH/IGF-1 axis from two directions; redundant and can overstimulate with feedback effects.Source pending | Treat as same-axis stacking; needs provider oversight and a clear rationale. |
| Ipamorelin | Note | Compound pairConfidence: theoretical | Commonly combined GH secretagogues that act on complementary receptors; frequently stacked intentionally rather than redundantly.Source pending | Often used together on purpose; still provider-supervised territory. |
| Sermorelin | Caution | Compound pairConfidence: theoretical | Two GHRH-type analogs push the same node of the axis; redundant.Source pending | Same-axis redundancy; usually pick one. |
| Any peptide + hormone | Note | Category ruleConfidence: theoretical | Injectable peptides plus hormones can have overlapping or compounding effects that aren't always well characterized.Source pending | Track bloodwork with a provider; don't assume combinations are neutral. |
Frequently asked questions about CJC-1295
Which studies looked at CJC-1295?
Peer-reviewed research indexed in PubMed. Each entry links to the original record.
- 1.Prolonged stimulation of growth hormone (GH) and insulin-like growth factor I secretion by CJC-1295, a long-acting analog of GH-releasing hormone, in healthy adults(opens PubMed in a new tab)J Clin Endocrinol Metab · 2006 · PMID 16352683 · https://pubmed.ncbi.nlm.nih.gov/16352683/
- 2.Pulsatile secretion of growth hormone (GH) persists during continuous stimulation by CJC-1295, a long-acting GH-releasing hormone analog(opens PubMed in a new tab)J Clin Endocrinol Metab · 2006 · PMID 17018654 · https://pubmed.ncbi.nlm.nih.gov/17018654/
- 3.Netnography of Female Use of the Synthetic Growth Hormone CJC-1295: Pulses and Potions(opens PubMed in a new tab)Subst Use Misuse · 2016 · PMID 26771670 · https://pubmed.ncbi.nlm.nih.gov/26771670/
Sources cited on this page
Specific documents referenced by the numbered markers above. Each number matches the marker in the text.
- PubChem CID 91971820(opens in a new tab)National Center for Biotechnology Information · pubchem.ncbi.nlm.nih.gov/compound/91971820
Verify at
Publisher search links for CJC-1295. These are places to check the information — they are not citations, so they are not numbered.
- NIH Office of Dietary Supplements(publisher search, opens in a new tab)National Institutes of Health · publisher search
- DrugBank(publisher search, opens in a new tab)DrugBank Online · publisher search
- PubMed literature search(publisher search, opens in a new tab)National Library of Medicine · publisher search
- DailyMed labeling archive(publisher search, opens in a new tab)U.S. National Library of Medicine · publisher search
- Wikipedia entry(publisher search, opens in a new tab)Wikipedia · publisher search
DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician. How we source and review this information.
What is the short answer on CJC-1295?
Plain-text summary, safe to quote verbatim:
CJC-1295 is a synthetic peptide classified as a Growth Hormone-Releasing Hormone (GHRH) analog. It was originally developed with the intention of treating medical conditions such as lipodystrophy, a disorder characterized by abnormal fat distribution, and growth hormone deficiency. Research on CJC-1295 focuses on skin and hair and tissue recovery.
CJC-1295 cheat sheet
DoseRoutine cheat sheet · Peptide
CJC-1295
CJC-1295 is a synthetic peptide classified as a Growth Hormone-Releasing Hormone (GHRH) analog. It was originally developed with the intention of treating medical conditions such as lipodystrophy, a disorder characterized by abnormal fat distribution, and growth hormone deficiency.
Evidence
Moderate
One published human randomized trial; results not yet replicated.
Studied range
Single subcutaneous amounts of 30, 60, 125 and 250 µg/kg were studied in the phase 1 trial
Route
Subcutaneous injection
Frequency studied
Single or weekly/biweekly administration in the phase 1 protocol
Half-life
Approximately 5.8–8.1 days for the DAC-conjugated form
Timing
in the evening
With food
on an empty stomach
Storage
Lyophilized peptide refrigerated; reconstituted solution refrigerated
Studied ranges, not dosing advice. Not medical advice — talk to a clinician. doseroutine.com/library/cjc-1295
Cite this page
Using this in an article, AI answer, or research note? Please attribute:
DoseRoutine. (2026). CJC-1295 — Overview, Benefits & Side Effects. Retrieved from https://doseroutine.com/library/cjc-1295
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