# CJC-1295 (with DAC): a week-long half-life, units to draw and the weekly shot > CJC-1295 DAC half-life (about a week per the 2006 human study), reconstitution calculator for mg doses and a weekly shot schedule. Track it in Peppy. Source: https://peppytracker.com/compounds/cjc-1295-with-dac/ Last updated: 2026-08-30 CJC-1295 (with DAC) is a GHRH analog conjugated to a Drug Affinity Complex that extends its half-life to days, giving sustained GH and IGF-1 elevation from a weekly dose. The Peppy catalog lists it as a reconstituted vial dosed in mg, weekly, with a half-life of about 168 hours. Peppy converts vial and water into units and charts what is still active. ## Tracking CJC-1295 (with DAC): what matters The CJC-1295 DAC half-life is the whole story of this compound. The 2006 human study estimated it at 5.8 to 8.1 days, and the Peppy catalog rounds that to about 168 hours. That is why it is a weekly shot, and why the "active in your system" curve on the protocol page never drops to zero between shots the way it does for the [no-DAC version](https://peppytracker.com/compounds/cjc-1295-no-dac/). Peppy draws the curve from the catalog number; treat it as an estimate of timing rather than a measured level. The vial math is in whole milligrams. A 2 mg vial with 1 mL of water is 2 mg per mL, so a 1 mg shot is 50 units and a 2 mg shot uses the entire millilitre. If you would rather not draw a full syringe, adding more water spreads the same dose over more units, which Peppy recalculates as you type. The [units-to-draw guide](https://peppytracker.com/guides/peptide-reconstitution-units-to-draw/) covers the trade-offs. At 1 or 2 mg a shot, a 2 mg vial is one or two doses. That makes inventory (Pro) more useful than for any mcg peptide: Peppy counts vials times doses per vial, projects the run-out date and sends a running-low alert. ## Schedule and cycles The Peppy catalog lists CJC-1295 (with DAC) as weekly with a dose ladder of 1 and 2 mg (catalog listing, not a recommendation). What people track is one shot on a fixed weekday, occasionally split into two smaller shots a week, and sometimes a block of several weeks followed by time off. A weekly schedule with a chosen weekday is free; cycles (Pro) model the off block and auto-skip those weeks. The [weekly reminder guide](https://peppytracker.com/guides/weekly-injection-reminder/) covers the "which day was it" problem. Whether any of these patterns fits you is a question for your prescriber. ## How to do this in Peppy 1. In **Protocols**, tap **+**, search "CJC" and choose **CJC-1295 (with DAC)** (alias DAC:GRF). The catalog sets mg, weekly and the 168-hour half-life. 2. Enter the mg dose. Open the inline **Calculator**, type vial mg and water mL, and read the units. Peppy warns if the draw exceeds 1 mL. 3. Pick the weekday and time. Turn on **Cycles** (Pro) if you run on/off blocks. 4. Add vials to **Inventory** (Pro); with one or two doses per vial the running-low alert matters. 5. On shot day, tap the countdown on **Today**, choose the suggested site on the body map and log. 6. Open the protocol to see the active-level curve; **Progress** (Pro insights) overlays it with your check-ins. ## Frequently asked ### What is the CJC-1295 DAC half-life? The Peppy catalog lists about 168 hours (7 days). The 2006 human study by Teichman and colleagues in the Journal of Clinical Endocrinology and Metabolism estimated the half-life at 5.8 to 8.1 days, with GH raised for 6 days or more and IGF-1 for 9 to 11 days after a single shot. Peppy's chart uses the catalog number as an estimate. ### How many units is 1 mg of CJC-1295 DAC? Example: a 2 mg vial mixed with 1 mL of bacteriostatic water is 2 mg per mL, so 1 mg is 0.5 mL, or **50 units** on a U-100 syringe. A 2 mg dose from that mix is the whole mL (100 units). With 2 mL of water, 1 mg is 100 units. Check your mix in Peppy's [calculator](https://peppytracker.com/calculator/) and verify with your prescriber. ### How often is CJC-1295 DAC typically scheduled? The Peppy catalog lists it as weekly, which follows from the multi-day half-life. Some people log it twice a week. Peppy's weekly schedule with a chosen weekday covers the first; a custom schedule covers the second. Your prescriber decides which applies. ### Where do you inject CJC-1295 DAC? Subcutaneous sites such as the abdomen, thighs and upper arms are what most people log. With only one shot a week it is easy to lose track of last week's spot; Peppy's body map records it. See the [rotation guide](https://peppytracker.com/guides/injection-site-rotation/). ### How many units is 1 mg of CJC-1295 (with DAC)? It depends on how the vial was mixed. Example: a 5 mg vial plus 2 mL of bacteriostatic water is 2.5 mg/mL, so 1 mg is 0.4 mL, or **40 units** on a U-100 insulin syringe. Change the water and the units change. Use the calculator above with your own vial, and verify with your prescriber. ### How long does CJC-1295 (with DAC) stay in your system? The Peppy catalog lists a half-life of about 7 days for CJC-1295 (with DAC). After roughly five half-lives, about 5 weeks, most of a single dose has cleared. That is an estimate from the half-life, not a measurement, and individual clearance varies. ### Can I track CJC-1295 (with DAC) in Peppy? Yes. CJC-1295 (with DAC) is one of 123 compounds built into Peppy, with its form, unit and typical frequency prefilled. Add it as a protocol, set your schedule, and Peppy handles the countdown, the log and the reminders (Pro). ### Where should I inject CJC-1295 (with DAC)? Follow your prescriber's instructions. For subcutaneous shots the GLP-1 labels list the abdomen, thigh and upper arm and say to rotate. Peppy's body map has 13 sites, suggests the next one, and shows when each was last used. Read the [site rotation guide](https://peppytracker.com/guides/injection-site-rotation/). --- Peppy is a tracking tool, not medical advice. Dose calculations are mathematical conversions only. Always follow your prescriber's instructions and verify every draw-up yourself. Peppy is a free iPhone app (Pro subscription optional). App Store: https://apps.apple.com/us/app/peptide-tracker-peppy/id6775005514