OptiPin
CJC-1295 (with DAC): uses, dosing & the facts
A long-acting CJC-1295 with Drug Affinity Complex that binds to albumin, providing sustained growth hormone release over several days. This is an evidence-graded reference — what it is, what it's used for, typical reported dosing, half-life, side effects, and how to track it. It is educational, not medical advice or a recommendation to use a research compound.
- • CJC-1295 (with DAC) — GHRH analog. A long-acting CJC-1295 with Drug Affinity Complex that binds to albumin, providing sustained growth hormone release over several days.
- • Commonly used for sustained growth hormone release, reduced injection frequency, anti-aging protocols.
- • Half-life: Approximately 6-8 days.
- • Status: Research use only · not FDA-approved — an educational reference, not a dose protocol or sourcing advice.
What CJC-1295 (with DAC) is
A long-acting CJC-1295 with Drug Affinity Complex that binds to albumin, providing sustained growth hormone release over several days.
What CJC-1295 (with DAC) is used for
- • Sustained growth hormone release
- • Reduced injection frequency
- • Anti-aging protocols
- • Muscle growth and recovery
- • Fat loss
- • Less frequent dosing
These are reported/community uses, not proven clinical outcomes. Most research peptides have limited human trial data behind such claims.
Typical reported dosing
| Injectable | 500-1000mcg per injection, 1-2 times per week. Total weekly dose: 1000-2000mcg, bodybuilders reportedly use up to 4000mcg weekly |
Presented as commonly-reported patterns for information only — not a dose recommendation. CJC-1295 (with DAC) dosing is a decision for a qualified clinician.
Reconstitution
Reconstitute 2-5mg vial with 2mL bacteriostatic water. 500mcg = 20 units (for 5mg vial), 1000mcg = 40 units. The arithmetic is the same for any peptide: concentration = vial mg ÷ water mL, and on a U-100 syringe 100 units = 1 mL. Compute your own vial with the reconstitution calculator.
Half-life & cycling
Half-life: Approximately 6-8 days. Half-life drives dosing frequency and how quickly the compound clears — see it plotted on the half-life visualizer.
Cycling
Used continuously for extended periods. Can run 8-12 week cycles with 4 week breaks. Less frequent dosing than without DAC version.
Side effects & warnings
- • Water retention
- • Mild blood sugar effects
- • Longer-lasting side effects due to extended half-life
- • Injection site irritation possible
Long half-life means effects last for days. Start with lower doses. Monitor blood sugar. Less frequent dosing is convenient but requires careful titration. More potent per injection than without DAC version.
Tracking CJC-1295 (with DAC) in OptiPin
If you're tracking a CJC-1295 (with DAC) protocol, OptiPin logs each dose with reminders and site rotation, charts the outcome you care about over your dose timeline, keeps per-vial inventory with runout warnings, and (where relevant) does the reconstitution math — all on-device, no account.
Log doses, outcomes & vials in OptiPin
Reminders, outcome-over-dose charts, vial runout warnings, and built-in reconstitution math — all on-device.
Download on the App StoreFAQ
What is CJC-1295 (with DAC)?
A long-acting CJC-1295 with Drug Affinity Complex that binds to albumin, providing sustained growth hormone release over several days.
What is CJC-1295 (with DAC) used for?
Commonly discussed uses include: sustained growth hormone release, reduced injection frequency, anti-aging protocols, muscle growth and recovery, fat loss, less frequent dosing. These are reported uses, not proven outcomes or a recommendation.
How is CJC-1295 (with DAC) dosed?
Commonly reported dosing: Injectable — 500-1000mcg per injection, 1-2 times per week. Total weekly dose: 1000-2000mcg, bodybuilders reportedly use up to 4000mcg weekly. This reflects patterns discussed in the community and is presented for information only, not as a dose recommendation — CJC-1295 (with DAC) is not an approved medicine and dosing should involve a qualified clinician.
How do you reconstitute CJC-1295 (with DAC)?
Reconstitute 2-5mg vial with 2mL bacteriostatic water. 500mcg = 20 units (for 5mg vial), 1000mcg = 40 units. On a U-100 syringe, 100 units = 1 mL. Concentrations vary by vial, so compute from your own vial with a reconstitution calculator.
What is CJC-1295 (with DAC)'s half-life?
Approximately 6-8 days. Half-life shapes how often it is dosed and how quickly it clears.
What are CJC-1295 (with DAC)'s side effects?
Reported effects include: water retention, mild blood sugar effects, longer-lasting side effects due to extended half-life, injection site irritation possible. Because it is a research compound, its safety profile is not fully characterized; discuss risks with a clinician.
Evidence & further reading
- Search the peer-reviewed literature for CJC-1295 (with DAC) on PubMed (entry point to the primary evidence base, not a specific citation).
- CJC-1295 (with DAC) on ClinicalTrials.gov — registered human trials, if any.
- US FDA / 503A compounding status of research peptides (2026).
- OptiPin peptides guide — categories, evidence grading, and how to run a protocol honestly.
Related
CJC-1295 (without DAC) · GHRP-2 · GHRP-6 · GLP-2 · BPC-157 · TB-500 · Reconstitution calculator · All peptides