GHRH peptide reference
CJC-1295: Reconstitution Math & Reference
By Baris Bingor · Last updated
How do you reconstitute CJC-1295?
CJC-1295 reconstitution is arithmetic: divide the vial mass (mg) by the bacteriostatic water added (ml) to get mg/ml. A 2 mg vial with 2 ml BAC water yields 1 mg/ml (1000 mcg/ml) — so a 100 mcg draw is 0.1 ml, or 10 units on a U-100 insulin syringe. The calculator below does it for any numbers you type.
Reconstitution calculator
Type your own numbers. They aren't sent anywhere: the math runs in your browser.
Type an amount to see the volume and the units.
Arithmetic only. Peptly does not suggest amounts: the amount is yours, from your protocol or the product's documentation. Not medical advice.
What is CJC-1295?
CJC-1295 is a synthetic 30-amino-acid analog of growth hormone-releasing hormone (GHRH 1-29), modified for protease resistance. It exists in two forms — with DAC (long-acting) and without DAC (Modified GRF 1-29, short-acting).
CJC-1295 is a GHRH analog studied in limited clinical and animal research as a growth-hormone secretagogue. It is NOT FDA-approved for human use. (By contrast, the related GHRH analog tesamorelin is FDA-approved.) This page is a math reference for research — not medical advice.
The two forms differ mainly in half-life. CJC-1295 WITH DAC carries a linker that binds circulating albumin, extending the half-life to roughly 6–8 days. CJC-1295 WITHOUT DAC (Modified GRF 1-29) lacks the linker and has a half-life near 30 minutes, so research protocols use smaller, more frequent doses. The reconstitution arithmetic is identical for both.
CJC-1295 commonly ships as 2 mg or 5 mg lyophilized powder and is frequently studied alongside ipamorelin. In the Peptly app, CJC-1295 with DAC and without DAC are separate profiles in the library, and each entry records which one it is for.
Reconstitution math — reference table
| Vial | BAC water | Concentration | Example dose | U-100 units |
|---|---|---|---|---|
| 2 mg | 1 ml | 2 mg/ml | 100 mcg | 5 units |
| 2 mg | 2 ml | 1 mg/ml | 100 mcg | 10 units |
| 5 mg | 2 ml | 2.5 mg/ml | 100 mcg | 4 units |
| 5 mg | 3 ml | 1.67 mg/ml | 200 mcg | 12 units |
| 5 mg | 5 ml | 1 mg/ml | 200 mcg | 20 units |
Storage and shelf-life
Most research protocols refrigerate reconstituted CJC-1295 at 2–8 °C and use within 2–4 weeks. Lyophilized powder typically stores at −20 °C until reconstitution.
CJC-1295 in the Peptly app
- A plain-language profile in the library — no amounts, frequencies or regimens.
- Entries exactly as you type them — the app never calculates, converts or suggests an amount.
- Today and reminders — log or skip each entry in one tap, on the schedule you set.
- Injection-site rotation — Peptly suggests the site you used longest ago, other than the last one.
- Private by design — no account; your log stays on your phone.
Other peptide references
- BPC-157 reconstitution math — BPC-157 is a synthetic pentadecapeptide — a 15-amino-acid fragment derived from a protective protein originally isolated from human gastric juice.
- TB-500 reconstitution math — TB-500 is a 17-amino-acid synthetic peptide fragment of Thymosin Beta-4, a regulatory peptide naturally present in most mammalian cells.
- Semaglutide reconstitution math — Semaglutide is a 31-amino-acid GLP-1 receptor agonist.
- Tirzepatide reconstitution math — Tirzepatide is a dual GIP/GLP-1 receptor agonist — a 39-amino-acid synthetic peptide.
- Ipamorelin reconstitution math — Ipamorelin is a 5-amino-acid synthetic peptide and a selective growth hormone secretagogue.
- Retatrutide reconstitution math — Retatrutide (LY3437943) is an investigational triple-hormone-receptor agonist — it targets the GLP-1, GIP, AND glucagon receptors.
- Tesamorelin reconstitution math — Tesamorelin is a synthetic 44-amino-acid analog of human growth hormone-releasing hormone (GHRH 1-44), stabilized with a trans-3-hexenoic acid group.
- GHK-Cu reconstitution math — GHK-Cu is a copper complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine (Gly-His-Lys), which binds a single copper(II) ion.
Related tools and guides
- Main peptide calculator overview
- Peptide reconstitution math reference
- BAC water calculator
- Step-by-step reconstitution guide
- Peptide storage & refrigeration guide
- Peptide dosage unit reference
- Peptide tracker — injection log
Frequently asked questions
What is the difference between CJC-1295 with DAC and without DAC? +
Both are the same 30-amino-acid GHRH analog; the difference is half-life. With DAC, a linker binds albumin and extends the half-life to roughly 6–8 days. Without DAC (Modified GRF 1-29), the half-life is about 30 minutes. The reconstitution math is identical — concentration = vial mass ÷ BAC water.
What BAC water volume works for a 2 mg CJC-1295 vial? +
A common choice is 2 ml, giving 1 mg/ml — a 100 mcg research draw lands at 10 units on a U-100 syringe, easy to read. The calculator on this page shows the unit count for any vial × water combination as you type.
Can I log CJC-1295 and ipamorelin together in Peptly? +
Yes, with Peptly Pro: logging more than one peptide (stacks) is part of Pro, and each entry records which peptide it is for, so your history shows both. The free version covers one peptide.
Why are CJC-1295 unit counts so small? +
Research doses are often in the 100–300 mcg range — far smaller than the milligram doses of peptides like tirzepatide. At 1–2.5 mg/ml that lands in the single-digit-to-teens unit range on a U-100 syringe, where the drawn syringe in the calculator on this page is especially helpful.
Is CJC-1295 approved for human use? +
No. CJC-1295 is not FDA-approved for human use; it is studied in limited research settings. This page is a math reference and the Peptly app is a log — neither is medical advice. Consult a licensed clinician for any health decision.