Bedtime
Community- Dose
- 100 mcg
- How often
- Once nightly
- How long
- 8–12 weeks, then about 4 off
Most cited. Taken fasted, 2–3 hours after the last meal, usually in the same shot as ipamorelin.
Mod GRF 1-29
A 29-amino-acid GHRH fragment with four amino acid swaps that slow its breakdown. It triggers a short pulse of growth hormone; its half-life is about 30 minutes.
Category 2 is FDA’s list of bulk substances that may present significant safety risks in compounding. The 503A bulks list adds substances that pharmacies may compound with. Advisory committee votes are advice; FDA makes the final decision. Sport status follows the WADA Prohibited List in force since January 1, 2026; athletes should confirm with their anti-doping organization. Checked October 5, 2026. Status of every compound.
CJC-1295 without DAC is the first 29 amino acids of growth-hormone-releasing hormone (GHRH), the brain signal that tells the pituitary to release growth hormone, with four swaps meant to slow its breakdown. Like GHRH, it is expected to act on GHRH receptors on the pituitary and trigger short pulses of growth hormone. No study has tested this exact peptide: FDA found no pharmacology studies of it in 2024 and said results for the DAC version can’t be carried over.
AnimalMainly from cell and animal studies; not shown in people.
Whether it raises GH and IGF-1 in people, by how much and for how long, and what repeated daily use does have never been measured.
100 mcg per injection is most cited (range 50–300 mcg), 1–3× daily.
12 weeks on, 4 off, shown over 26 weeks
The ways CJC-1295 (no DAC) is most often run, each tagged with where it comes from.
Most cited. Taken fasted, 2–3 hours after the last meal, usually in the same shot as ipamorelin.
Fasted doses spread through the day, often including one at bedtime. Less common than bedtime only.
Subcutaneous injection, rotating sites. Usually at bedtime on an empty stomach, 2–3 hours after the last meal.
No published guidance. Skip the missed dose and take the next one at the usual time; don’t double up.
A short GH pulse. Half-life is about 30 minutes, so it doesn’t build up the way the DAC version does.
CommunityBetter sleep, recovery and body composition are reported but untested; there are no human trials of this peptide.
CommunityFlushing or warmth after the shot
Commonly reported and usually brief. Stop if it comes with hives, swelling or trouble breathing.
Injection-site redness or rash
Rotate sites. Stop if a rash spreads beyond the site.
Water retention, joint or muscle aches
Linked to higher GH and IGF-1. Lower the dose or stop if it persists.
Headache or tiredness
Usually mild. Stop if severe or persistent.
Higher blood sugar
GH raises glucose. Check fasting glucose, especially with prediabetes or diabetes.
Hives with face, lip or throat swelling, trouble breathing, chest pain, or fainting: stop and get emergency care.
No product label covers CJC-1295 (no DAC), so these come from human studies and from precautions based on how it works. Most important first.
Precaution: follows from how it works or from a related drug, and hasn’t been tested. This isn’t a complete list: a pharmacist or doctor can check a specific medicine or condition.
The standard pairing: a GHRH analog plus a ghrelin-receptor agonist, often premixed. Never tested together in a published trial.
No published human studies of CJC-1295 (no DAC) turned up in our October 2026 review. The evidence note at the top of this page sums up what is known.
No published study has given this exact peptide to people or animals; FDA found none when it reviewed it in 2024. The human results often quoted for it come from CJC-1295 with DAC, a different, longer-acting molecule. The doses people inject, repeated daily use, long-term safety and product purity are all untested.
| Vial | Water | Common dose | Draw | Strength | Action |
|---|---|---|---|---|---|
| 5 mg | 2.5 mL | 100 mcg | 5 units (0.05 mL) | 2 mg/mL |
Syringe units for common doses at different water volumes. Select a cell to open it in the calculator.
| Dose | Water added | |||
|---|---|---|---|---|
| 1 mL | 2 mL | 2.5 mL | 3 mL | |
| 50 mcg | ||||
| 60 mcg | ||||
| 75 mcg | ||||
| 100 mcg | ||||
| 150 mcg | ||||
| 200 mcg | ||||
| 250 mcg | ||||
| 300 mcg | ||||
U-100 insulin syringe: 100 units is 1 mL. Draws over 100 units show in mL. Faded values are under 2 units, which is hard to measure. Check that your vial holds the larger volumes.
Every compound side by side: the half-life chart and the storage chart.
A 29-amino-acid GHRH fragment with four amino acid swaps that slow its breakdown. It triggers a short pulse of growth hormone; its half-life is about 30 minutes.
CJC-1295 without DAC is the first 29 amino acids of growth-hormone-releasing hormone (GHRH), the brain signal that tells the pituitary to release growth hormone, with four swaps meant to slow its breakdown. Like GHRH, it is expected to act on GHRH receptors on the pituitary and trigger short pulses of growth hormone. No study has tested this exact peptide: FDA found no pharmacology studies of it in 2024 and said results for the DAC version can’t be carried over. Whether it raises GH and IGF-1 in people, by how much and for how long, and what repeated daily use does have never been measured.
Not approved as a drug in the US or EU. Nomination withdrawn, so no longer in FDA Category 2 (April 2026). In December 2024 FDA’s advisory committee voted 0 to 13 against adding it to the 503A bulks list (1 to 12 for the acetate form). Not on the July 2026 agenda.
From community reports, not established: 100 mcg per injection is most cited (range 50–300 mcg), 1–3× daily. These are the amounts sources reference, not recommendations.
There’s no single right amount, because the water only sets the strength. With 2.5 mL of bacteriostatic water in a 5 mg vial, the strength is 2 mg/mL, so 100 mcg is 5 units on a U-100 insulin syringe. More water makes small doses easier to measure. The dose chart above shows other volumes.
No product label covers CJC-1295 (no DAC), so these come from human studies and from precautions based on how it works. Anyone with active or past cancer: It is designed to raise growth hormone and IGF-1, which promote cell growth, and FDA notes that mice making excess GHRH develop pituitary tumors. No study has tested this peptide. Diabetes or high blood sugar: Growth hormone raises blood sugar, and FDA says the diabetes risk on growth hormone labels may also apply to drugs like this that raise GH. Its effect on blood sugar has never been measured. Pregnancy or breastfeeding: No human safety data exist. The “Who should avoid it” section lists 1 more group.
Before mixing: Freezer (−20 °C) for long-term storage; fridge for short periods. After mixing: Fridge (2–8 °C); use within about 4 weeks. This is common practice; no product label covers it.
Yes. S2.2.4 growth hormone releasing factors: GHRH and its analogues, with CJC-1295 named. Mod GRF 1-29 is a GHRH analogue. Banned at all times.
No published human studies turned up in our October 2026 review. The evidence note at the top of this page sums up what is known.
For the protocol details
For how it works, who should avoid it and the limits of the evidence
Doses tagged Community come from public dosing guides and user reports, checked against at least two of them. Those sites aren’t named here because many of them sell peptides or earn commissions on them.