Modified GRF for natural pulsatile GH release pattern - pairs perfectly with GHRPs
Modified GRF 1-29 is a more stable and effective version of the natural growth hormone-releasing factor. It is designed to last longer in the system while helping the body produce its own growth hormone through natural pathways.
GH Release Cycle
Secretagogues trigger pulsatile growth hormone release from the pituitary.
Quickstart Highlights
- Dosage: 100mcg
- Frequency: 2-3x daily
- Administration: Subcutaneous
- Cycle length: 8-16 weeks, can run indefinitely
Dosing Plan
| Weeks | Dose | Units |
|---|---|---|
| Standard (with GHRP) | 100mcg 2-3x daily | 10 units (0.1mL) per dose |
| Before Bed (Primary) | 100mcg + Ipamorelin 200mcg | Most important dose |
| Morning Fasted (Add-on) | 100mcg + Ipamorelin 200mcg | Enhanced results |
| Post-Workout (Add-on) | 100mcg + Ipamorelin 200mcg | Recovery-focused |
How to mix
2ml BAC water per 2mg vial = 100mcg per 0.1ml
- Draw 2.0mL bacteriostatic water with a sterile syringe.
- Inject slowly down the vial wall to avoid foaming.
- Gently swirl until completely dissolved.
- Label with date. Concentration = 1mg/mL (1,000mcg/mL).
- Refrigerate at 2–8°C. Use within 3-4 weeks.
Syringe Math Reference
- 2mg vial with 2mL BAC water = 1 mg/mL = 1,000 mcg/mL
- 100mcg dose = 10 units (0.1mL)
- 150mcg dose = 15 units (0.15mL)
- 200mcg dose = 20 units (0.2mL)
What you'll need
CJC-1295 (no DAC) Vials (2mg)
- 4 weeks (100mcg 2x/day) 3 vials
- 8 weeks 6 vials
- 12 weeks (3x/day) 12 vials
Insulin Syringes (U-100)
- 4 weeks 60 syringes
- 8 weeks 120 syringes
- 12 weeks 180 syringes
Bacteriostatic Water (10mL)
- 4 weeks 1 bottle
- 8 weeks 1-2 bottles
- 12 weeks 2 bottles
Alcohol Swabs
- 4 weeks 1 × 100-count box
- 8 weeks 2 × 100-count boxes
- 12 weeks 2 × 100-count boxes
How This Works
CJC-1295 no DAC (also called Mod GRF 1-29) is a modified version of the first 29 amino acids of natural GHRH with four amino acid substitutions for stability. Without the DAC, it has a short half-life (~30 minutes), creating natural pulsatile GH release when combined with a GHRP. It amplifies the amplitude and duration of the GH pulse triggered by the GHRP, resulting in synergistic GH output.
This peptide attaches to specific receptors in the pituitary gland to encourage the body to release its own growth hormone. It does this in natural, rhythmic waves that mirror how the body normally functions.
Mechanism of Action
How CJC-1295 Works in Your Body
Peptide Administered
Enters bloodstream via subcutaneous injection
Pituitary Activation
Stimulates the pituitary gland to release GH
GH Pulse
Natural growth hormone pulse is amplified
Tissue Response
Muscles repair, bones strengthen, fat reduces
Benefits & Side Effects
Potential Benefits
- Natural pulsatile GH release (healthier pattern)
- Synergistic with GHRPs (1+1=3 effect)
- Improved fat loss and body composition
- Better sleep quality and recovery
- Anti-aging effects
- Can run long-term without desensitization
Potential Side Effects
- Head rush or flushing after injection (common, temporary)
- Mild water retention
- Tingling in extremities (rare)
- Increased hunger (mild)
- Generally very well-tolerated
How to store it
- Lyophilized: Store frozen at -20°C for long-term; refrigerated for months.
- Reconstituted: Refrigerate at 2–8°C; use within 3-4 weeks.
- More fragile than DAC version - handle carefully.
- Protect from heat, light, and repeated freeze-thaw.
Good to know
- MUST be taken on an empty stomach - no food 2 hours before or 30 minutes after.
- ALWAYS combine with a GHRP like Ipamorelin for synergistic effect.
- Fats and carbohydrates significantly blunt the GH response.
- Provides natural PULSATILE GH release (healthier than DAC's sustained elevation).
- Bedtime dose is most important - amplifies natural sleep-time GH surge.
- Can run indefinitely without significant desensitization.
Community Insights
Summarised from 1 sourceModified GRF for natural pulsatile GH release pattern - pairs perfectly with GHRPs Always combine with a GHRP (Ipamorelin ideal). Take on empty stomach
Common Dosages Reported
- 100mcg 2-3x daily
- Standard protocol dosing
Side Effects Mentioned
- Generally mild, individual variation expected
- See full guide for detailed safety info
Stacking Suggestions
- Consult research and healthcare provider before stacking
What people are saying
Results vary based on individual response
Consistent dosing and timing important
Reviews & Discussion
Real experiences shared by the community — not medical advice.
Deep Sleep and Vivid Dreams
A user reported that combining CJC-1295 (no DAC) with Ipamorelin was highly effective for improving sleep. They specifically noted an increase in the vividness of dreams and feeling more rested upon waking. This combination was highlighted as a preferred alternative to traditional sleep aids.
Improved Sleep and Body Composition
A user shared their positive experience using Mod GRF 1-29 in combination with Ipamorelin. They reported significant improvements in deep sleep quality and a noticeable increase in lean body mass. Additionally, they noted that the protocol helped them maintain lower body fat levels.
Peptide Cycle Experience: CJC-1295 and Ipamorelin
A user shared their peptide cycle involving CJC-1295 (no DAC) and Ipamorelin, highlighting notable benefits in recovery and sleep quality. They observed that the combination helped maintain muscle mass while leaning out, though they cautioned that results take time to manifest compared to anabolic steroids. The user emphasized the importance of timing doses around meals for maximum efficacy.
Mod GRF 1-29 and GHRP-2 Log
A user documented their experience with a combination of Mod GRF 1-29 and GHRP-2, reporting significant physical improvements including increased vascularity and being in the best shape of their life. They noted that while the fat loss was not as rapid as with certain stimulants, the overall body composition changes were very positive and the effects on deep sleep were immediate. See the full log for dosing details and progress updates.
Ipamorelin and CJC-1295 for Recovery and Sleep
A user reported using Ipamorelin and CJC-1295 (no DAC) specifically for improved recovery from intense training sessions and better sleep. They expressed satisfaction with the steady, subtle results in muscle fullness and fat loss over a multi-month period, noting a lack of significant side effects compared to other growth hormone secretagogues.
Variable Occurrence of Injection Flushing
One individual reported that their 'research subject' used a CJC/GHRP combination three times daily at various dosages without ever experiencing flushing symptoms. This suggests that the common flush side effect may be dose-dependent or vary significantly between individuals.
Preference for Mod GRF 1-29 over CJC-1295 DAC for Pulsatile Release
A user recommended Mod GRF 1-29 over CJC-1295 DAC for males to better simulate natural pulsatile growth hormone release. They reported using it personally alongside GHRP and AAS with no complaints regarding side effects.
Significant IGF-1 Increase and Fat Loss with Mod GRF 1-29/Ipamorelin Blend
A user reported significant success using a blend of 100mcg Mod GRF 1-29 and 100mcg Ipamorelin three times daily, noting an IGF-1 increase from 227 ng/ml to 406 ng/ml. They highlighted benefits such as fat loss, increased muscle mass, deep sleep with vivid dreams, and a complete lack of hunger or bloating compared to MK-677.
Post-Injection Flushing and Vivid Dreams
A user's associate experienced a 'flush' sensation and head pressure lasting 15-20 minutes following CJC-1295 injections. Another user in the same thread confirmed experiencing similar facial flushing and noted the occurrence of vivid dreams while using the peptide.
Insomnia and overstimulation from Mod GRF and Ipamorelin stack
A user reported experiencing significant insomnia and overstimulation after taking a combination of Mod GRF (CJC-1295 no DAC) and Ipamorelin. Even at lower doses, the user felt jittery, comparing the sensation to taking a decongestant, and found it impossible to sleep.
Interest in standalone Mod GRF 1-29 for weight loss
A user expressed interest in using Mod GRF 1-29 alone to assist with weight loss while maintaining muscle mass. They previously tried Sermorelin without noticing any benefits and preferred avoiding other GHRPs due to concerns about side effects and cost.
Mod GRF 1-29 and Ipamorelin for Injury Recovery
A user reported choosing a stack of CJC-1295 (Mod GRF 1-29) and Ipamorelin for post-cycle recovery. They planned to dose 100mcg of each three times daily for injury recovery and tendonitis, later reducing to once daily for maintenance.
Ipamorelin Preference over GHRP-2/6 in CJC Stacks
A forum member recommended pairing CJC-1295 with Ipamorelin as the superior choice over GHRP-2 or GHRP-6. They noted that unlike the GHRP options, Ipamorelin does not carry the same risk of prolactin-induced side effects like gynecomastia.
Improved Sleep and Recovery with Growth Hormone Secretagogues
A user who experimented with CJC-1295 (no DAC) and GHRP-2 reported experiencing deeper sleep and improved recovery. While they noted a significant boost in physical well-being, they did not observe any direct cognitive enhancement or nootropic effects from the protocol.
Reduced Inflammation and Enhanced Sleep Quality
A commenter described using CJC-1295 (no DAC) alongside Ipamorelin and observed a drastic improvement in sleep quality and a reduction in systemic inflammation. They noted that while the physical benefits were clear, the impact on cognitive function appeared to be indirect, stemming from better rest rather than a direct nootropic mechanism.
Weight Loss and Muscle Support with Tirzepatide Stack
A female user combining this peptide blend with Tirzepatide reported positive progress in her weight loss journey. She noted a current weight of 173.6 lbs down from 195 lbs and is utilizing the blend to support muscle growth while continuing to lose fat.
Synergistic Effects with GHRPs
A user highlighted that Mod GRF 1-29 is most effective when taken in conjunction with a GHRP like Ipamorelin. They noted that the GHRH component helps suppress somatostatin, which otherwise limits the growth hormone release triggered by the GHRP.
Deep Sleep Enhancement with Mod GRF 1-29
A user reported that CJC-1295 (no DAC) significantly Improved their sleep quality, particularly increasing the duration of deep sleep. They found it to be a helpful addition to their sleep regimen when looking for alternatives to traditional sleep aids.
CJC-1295 (no DAC) for Natural GH Pulsing
A user shared their success using a combination of CJC-1295 (no DAC) and Ipamorelin to boost growth hormone levels. They noted that this combination is safer and more effective for long-term use compared to synthetic HGH, as it preserves the body's natural GH pulses.
Mod GRF 1-29 Immediate Physical Response and Log
The user documented a log using Mod GRF 1-29 (CJC-1295 no DAC) and felt an immediate physical response, including facial flushing and a slight increase in heart rate after dosing. They reported that the peptide felt highly effective, particularly for enhancing the body's natural growth hormone pulses when timed correctly. The user emphasized the importance of dosing on an empty stomach for maximum impact.
CJC-1295 and Ipamorelin for Recovery/Anti-Aging
A user shared their experience combining Ipamorelin and CJC-1295 (no DAC) for anti-aging and recovery purposes. They observed significant improvements in skin quality and deep sleep patterns. They preferred the 'no DAC' version specifically to mimic natural physiological GH pulses rather than maintaining a constant elevated level.
Improved Sleep and Muscle Fullness on CJC-1295 Stack
A user reported positive results using a combination of CJC-1295 (no DAC), Ipamorelin, and GHRP-6. They experienced improved sleep quality, increased hunger, and a 'flushing' sensation shortly after injection. The user noted that while fat loss was not immediate, the muscle fullness and recovery benefits were apparent during the cycle.
Mod GRF 1-29 for Pulse-Like GH Release
A user recommended Mod GRF 1-29 (CJC-1295 no DAC) over the DAC version to better simulate natural male growth hormone pulses. They suggested starting at 50mcg twice daily and titrating up to 100mcg, reporting no significant side effects when used in conjunction with GHRP and AAS.
Post-Injection Flush Symptom and Head Pressure
Several users discussed a "flush symptom" occurring shortly after CJC-1295 administration, characterized by head pressure and a feeling of warmth. While one user reported this sensation lasting about 15-20 minutes and being accompanied by vivid dreams, another noted that they experienced no such flushing even with multiple daily doses.
Significant IGF-1 Increase and Fat Loss with Mod GRF 1-29/Ipamorelin Blend
A user reported significant success using a blend of 100mcg Mod GRF 1-29 and 100mcg Ipamorelin three times daily, noting a blood-verified IGF-1 increase from 227 ng/ml to 406 ng/ml. They experienced fat loss, improved musculature, and deep sleep with vivid dreams while avoiding the hunger and bloat associated with MK-677. The user highlighted that this combination remains effective indefinitely without the tolerance issues they experienced on other GH secretagogues.
Insomnia and Overstimulation from CJC-1295/Ipamorelin Combo
A user reported experiencing significant insomnia and overstimulation after taking a combination of CJC-1295 (no DAC) and Ipamorelin. Even at a reduced dose of 50mcg each, the user found their sleep was worse than taking nothing, and daytime administration resulted in jitters similar to taking a decongestant.
No Results from Sermorelin; Seeking CJC-1295 Benefits
A user considering CJC-1295 (no DAC) by itself reported that a previous trial of Sermorelin yielded no noticeable results. They expressed interest in CJC-1295 for weight loss and muscle maintenance due to its reported minimal side effects compared to GHRP-2 or GHRP-6.
Preference for Ipamorelin/Mod GRF 1-29 Combination
A forum member recommended using Ipamorelin alongside Mod GRF 1-29 over other GHRPs like GHRP-2 or GHRP-6. They suggested this combination is superior because it avoids the heavy prolactin release associated with other peptides, which can lead to side effects like gynecomastia.
Mod GRF 1-29 and Ipamorelin for Injury Recovery
A user selected a combination of Mod GRF 1-29 (CJC-1295 no DAC) and Ipamorelin for use after a cycle. They planned to dose 100mcg of each three times per day for injury recovery and maintenance, specifically targeting tendonitis.
CJC-1295/Ipamorelin for Sleep and Recovery
A user noted that the combination of Mod GRF 1-29 and Ipamorelin provided a significant improvement in sleep quality and physical recovery. While the primary benefits were physical, they observed a secondary cognitive boost resulting from being more well-rested.
Mod GRF 1-29 and GHRP-2 Sleep Effects
A forum participant shared their experience using CJC-1295 (no DAC) alongside GHRP-2, reporting no direct cognitive enhancement or 'nootropic' effect. However, they did experience much deeper sleep and a consistent 'tired but wired' feeling if dosed too late in the evening.
CJC-1295 for Recovery from Burnout
A user reported that implementing a peptide protocol including CJC-1295 (no DAC) and Ipamorelin significantly helped their recovery from stimulant-induced burnout and adrenal fatigue. They attributed a renewed sense of well-being and improved metabolic function to the growth hormone secretagogue cycle.
Synergistic Effect of Mod GRF 1-29 and Ipamorelin
A user shared their experience using a combination of Mod GRF 1-29 and Ipamorelin, noting that they are best taken together to maximize growth hormone release. They explained that the GHRH helps suppress somatostatin, which otherwise limits the effectiveness of GHRPs.
No discussion yet — be the first.
No notes yet — be the first.