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Growth Hormone Secretagogues

CJC-1295 (with DAC) Dosage Calculator

A synthetic analog of growth hormone-releasing hormone (GHRH) with a Drug Affinity Complex that extends its half-life. Stimulates the pituitary to release growth hormone in a sustained, pulsatile manner.

Also known as: CJC-1295 DAC, Drug Affinity Complex

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CJC-1295 (with DAC) -- A synthetic analog of growth hormone-releasing hormone (GHRH) with a Drug Affinity Complex that extends its half-life. S...Route: Subcutaneous injection | Frequency: 1-2x per week | Half-life: ~6-8 days
Below typical range (1 mg - 2 mg)

Your Results

Concentration
2.5 mg/mL
= 2500 mcg/mL
Volume to Draw
0.10 mL
Syringe Units (U-100 insulin syringe)
10.0 units
100 units = 1 mL on a standard U-100 insulin syringe
Doses Per Vial
20 doses
at 250 mcg per dose from a 5mg vial
U-100 Insulin Syringe
0u
50u
100u
10.0 units
0.10 mL
Summary: Add 2 mL of bacteriostatic water to your 5mg vial. To get a 250 mcg dose, draw 0.10 mL (10.0 units) on a U-100 insulin syringe. This vial will provide 20 doses at this dosage.
For research purposes only. This calculator is a mathematical tool and does not constitute medical advice. Always consult with a qualified healthcare professional before using any peptide.

CJC-1295 (with DAC) Quick Reference

Typical Dose
1 mg - 2 mg
Frequency
1-2x per week
Route
Subcutaneous injection
Half-Life
~6-8 days
Common Vials
2 mg, 5 mg
Reconstituted Stability
Up to 21 days refrigerated
Note: The DAC modification extends the half-life significantly compared to the no-DAC version. Best administered before bed to align with natural GH release patterns. Often combined with a GHRP like Ipamorelin.

CJC-1295 (with DAC) Storage

Lyophilized: 2-8 C. Reconstituted: 2-8 C

Stability after reconstitution: Up to 21 days refrigerated. Always use bacteriostatic water for multi-use reconstitution. Label the vial with the reconstitution date and discard after the stability period.

CJC-1295 (with DAC) Frequently Asked Questions

CJC-1295 with DAC has a Drug Affinity Complex that binds to albumin, extending the half-life to 6-8 days (vs ~30 minutes for no-DAC). This means it only needs to be injected 1-2x per week instead of multiple times daily.
1-2 mg injected once or twice per week. Some protocols use 2 mg once weekly, others prefer 1 mg twice weekly. Both approaches maintain elevated GH levels.
Best injected before bed to complement the natural nocturnal growth hormone pulse. Avoid injecting near meals as insulin can blunt GH release.
Yes, this is one of the most popular combinations. CJC-1295 DAC provides sustained GHRH stimulation while Ipamorelin provides acute GH pulses without significantly affecting cortisol or prolactin.
Typical protocols run 3-6 months followed by a 1-month break. Some protocols run continuously with periodic blood work to monitor IGF-1 levels.
Add 2 mL of bacteriostatic water for a 1 mg/mL concentration. For a 1 mg dose, draw 1 mL (100 units). For 2 mg, you will use the entire vial in one dose.

Other Peptide Calculators

BPC-157

250 mcg - 500 mcg | 1-2x daily

TB-500

2 mg - 5 mg | 2x per week (loading), 1x per week (maintenance)

Semaglutide

250 mcg - 2.40 mg | 1x per week

Tirzepatide

2.50 mg - 15 mg | 1x per week

CJC-1295 (no DAC) / Mod GRF 1-29

100 mcg - 300 mcg | 2-3x daily

Ipamorelin

200 mcg - 300 mcg | 2-3x daily

PT-141 (Bremelanotide)

1 mg - 2 mg | As needed (max 1x per 24 hours)

Melanotan II

250 mcg - 1 mg | 1x daily (loading), then maintenance

Retatrutide

500 mcg - 12 mg | 1x per week