The typical dosage for CJC-1295 with DAC is 1 to 2 mg per week, while early research used 30 to 60 mcg/kg. Learn how the half-life shapes timing.
CJC-1295 with DAC is typically cited at 1 to 2 mg per week, delivered as a single weekly injection or split into two 0.5 to 1 mg doses. Early human studies used single subcutaneous doses of 30 to 60 mcg per kilogram of body weight and observed growth hormone and IGF-1 elevations that lasted for days. The peptide is not FDA-approved for human use, so every figure below is a research reference point rather than a medical recommendation.
What CJC-1295 With DAC Is and How It Works
CJC-1295 with DAC is a modified growth hormone-releasing hormone (GHRH) analog. It begins as GRF(1-29), the active fragment of GHRH, and has a drug affinity complex (DAC) maleimide group attached to it.
That DAC group binds covalently to albumin in the bloodstream, which is what makes this version long-acting. The unmodified fragment clears in roughly 30 minutes, while the DAC version has a reported half-life of about six to eight days.
The peptide binds GHRH receptors on pituitary somatotrophs and amplifies natural growth hormone pulses rather than forcing a flat release. The downstream result is a sustained rise in IGF-1, which is why studies measure both hormones together.
Commonly Cited Dosage Ranges
Dose ranges come from a small number of pharmacokinetic studies plus years of forum discussion. Anyone comparing protocols will notice a wide spread attached to cjc-1295 with dac dosage across different sources.
| Protocol style | Weekly amount | Frequency | Origin |
|---|---|---|---|
| Weight-based | 30–60 mcg/kg | Once weekly | Early pharmacokinetic trials in healthy adults |
| Low fixed dose | 1 mg | Once weekly | Frequently cited community starting point |
| Moderate fixed dose | 2 mg | 2 mg once weekly or 1 mg twice weekly | Most repeated range in forums and vendor guides |
| Split protocol | 1–3 mg | 0.5–1 mg, two to three times weekly | Anecdotal; not from controlled trials |
There is no FDA-approved dose of CJC-1295 with DAC because the peptide is not approved as a drug in the United States. A 1 mg weekly figure and a 2 mg weekly figure appear in the same conversations, which means the range reflects guesswork as much as data.
CJC-1295 With DAC vs. CJC-1295 Without DAC
The two versions are frequently confused, and the difference in half-life changes everything about injection timing.
| Feature | CJC-1295 with DAC | CJC-1295 without DAC (Mod GRF 1-29) |
|---|---|---|
| Reported half-life | About 6–8 days | About 30 minutes |
| Typical injection frequency | Once or twice weekly | Two to three times daily |
| Albumin binding | Yes | No |
| GH release pattern | Sustained elevation | Short, pulse-like spike |
Because the DAC version stays active for days, stacking it with a GHRP and injecting it before every workout does not match its pharmacokinetics. The shorter version is the one usually paired with a pulsatile dosing schedule.
Reconstitution Math for a 5 mg Vial
The math behind cjc-1295 with dac 5mg dosage depends entirely on how much diluent you add. A 5 mg vial reconstituted with 2.5 mL of bacteriostatic water yields 2 mg/mL; the same vial with 5 mL yields 1 mg/mL.
| Diluent added | Concentration | Volume for 1 mg | Volume for 2 mg |
|---|---|---|---|
| 2.5 mL | 2 mg/mL | 0.5 mL | 1.0 mL |
| 5.0 mL | 1 mg/mL | 1.0 mL | 2.0 mL |
Reconstituted vials are generally stored refrigerated and protected from repeated temperature swings and light exposure. Swirling rather than shaking helps the powder dissolve without foaming.
What Bodybuilders and Reddit Threads Report
Bodybuilding forums discussing cjc-1295 with dac dosage bodybuilding tend to cluster around 1 to 2 mg per week, often alongside a GHRP such as ipamorelin or GHRP-2. Threads about cjc-1295 with dac dosage reddit follow the same pattern, with users describing weekly injections and subjective changes in sleep, recovery, and appetite.
Anecdotes are not data. Reported effects are inconsistent, doses in forums are often estimated rather than measured, and nobody posting a log is verifying the purity of what they injected.
Side Effects, Safety, and Legal Status
Commonly reported effects include injection site irritation, flushing, headache, water retention, tingling or numbness in the hands, joint stiffness, and fatigue. Sustained IGF-1 elevation raises long-term questions about insulin sensitivity and tissue growth.
Continuous GHRH receptor stimulation also raises a theoretical concern about pituitary desensitization with extended use. No long-term human safety data exists for this compound.
Products listed as cjc 1295 with dac for sale are marketed as research chemicals for laboratory use only. CJC-1295 with DAC is not a controlled substance in the United States, but it is not approved for human use, and importing it for personal use sits in a legal gray area that the FDA has warned against.
Anyone weighing the risks should speak with a healthcare professional and get baseline bloodwork, including IGF-1 and fasting glucose. CJC-1295 with DAC is not a treatment for a diagnosed hormone deficiency.
Frequently Asked Questions
What is the typical dosage for CJC-1295 with DAC?
Research studies have used single doses of 30 to 60 mcg per kilogram of body weight, while most community protocols cite 1 to 2 mg per week. There is no FDA-approved dosage because CJC-1295 with DAC is not approved for human use. Any decision about dosing should be discussed with a healthcare professional.
How often do you inject CJC-1295 with DAC?
The DAC group extends the reported half-life to roughly six to eight days, so it is usually described as a once-weekly or twice-weekly injection. That is very different from CJC-1295 without DAC, which clears in about 30 minutes and is typically injected multiple times per day. The dosing schedule should match the specific version of the peptide, not be copied from the other one.
Is CJC-1295 with DAC legal in the United States?
CJC-1295 with DAC is not FDA-approved for human use and cannot legally be sold as a supplement or prescription drug. It is sold as a research chemical intended for laboratory use only. Importing it for personal use is a legal gray area, and the FDA has issued warnings about unapproved peptides sold online.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.