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Growth Hormone Secretagogues

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

A modified version of Growth Hormone Releasing Factor (amino acids 1-29) with amino acid substitutions to improve stability. Provides acute GH pulses and is typically combined with a GHRP for synergistic effects.

Also known as: Mod GRF 1-29, Modified GRF, CJC-1295 without DAC

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CJC-1295 (no DAC) / Mod GRF 1-29 -- A modified version of Growth Hormone Releasing Factor (amino acids 1-29) with amino acid substitutions to improve stabil...Route: Subcutaneous injection | Frequency: 2-3x daily | Half-life: ~30 minutes
Within typical range (100 mcg - 300 mcg)

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 (no DAC) / Mod GRF 1-29 Quick Reference

Typical Dose
100 mcg - 300 mcg
Frequency
2-3x daily
Route
Subcutaneous injection
Half-Life
~30 minutes
Common Vials
2 mg, 5 mg
Reconstituted Stability
Up to 21 days refrigerated
Note: Short half-life requires multiple daily injections. Most effective when combined with a GHRP (Ipamorelin, GHRP-6, or GHRP-2) for synergistic GH release. Inject on an empty stomach.

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

100-300 mcg per injection, administered 2-3 times daily. The most common protocol is 100 mcg three times daily (morning, post-workout, and before bed).
Mod GRF provides more natural, pulsatile GH release similar to the body's own pattern. CJC-1295 DAC provides a constant elevation. Some researchers prefer the pulsatile pattern to avoid GH receptor desensitization.
Add 2 mL bacteriostatic water for 1 mg/mL (1,000 mcg/mL). For 100 mcg, draw 0.1 mL (10 units). This gives you 20 doses of 100 mcg per vial.
Yes, combining with a GHRP like Ipamorelin creates a synergistic effect, producing a larger GH pulse than either peptide alone. Inject both in the same syringe at the same time.
On an empty stomach (at least 30 minutes before or 2 hours after eating). Best times: morning upon waking, post-workout, and before bed. Avoid injecting near meals as insulin blunts GH release.
Each injection produces a GH pulse within 15-30 minutes that lasts approximately 2 hours. Cumulative benefits from consistent use typically become noticeable within 4-8 weeks.

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 (with DAC)

1 mg - 2 mg | 1-2x per week

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