CJC-1295 Ipamorelin Dosage Protocol: Timing, Cycles & What Actually Works

You've already decided on the CJC-1295 + Ipamorelin stack. Smart choice: this is the most commonly recommended growth hormone secretagogue combination in the research peptide community, and for good reason. But now you're staring at conflicting dosage recommendations online, ranging from 100mcg to 1,000mcg, with everyone claiming their protocol is the right one.

Here's what the research actually says, and what r/Peptides has settled on after years of community experimentation. As always, talk to your doctor before starting anything new. What follows is educational and intended for research purposes.

The short answer: 100 mcg of each peptide per injection, 2-3 times daily for beginners. More experienced users sometimes push to 200 mcg, but the community consensus on r/Peptides is that the dose-response curve flattens significantly above 200 mcg: you're not getting 2x the benefit for 2x the dose. These are always injected together in the same syringe. There's no research suggesting they need to be split.

Most protocols you'll see discussed alongside Ipamorelin are referring to CJC-1295 without DAC. If your vial says "CJC-1295 w/DAC," the dosing above doesn't apply. When you see "CJC-1295" without further specification from a research supplier, read the COA and confirm which form you have before dosing.

This is where most people leave results on the table. The three optimal injection windows: 1. Morning (upon waking, fasted): Growth hormone secretion is already elevated in the early morning. Injecting here amplifies the natural pulse. 2. Pre-workout (1 hour before training): The exercise-induced GH pulse pairs well with the peptide-induced pulse. Research suggests the combined effect may be greater than either alone (Walker, 2006; Veldhuis et al., 2008). 3. Before bed (30 minutes before sleep, fasted 2-3 hours prior): The largest natural GH pulse occurs during slow-wave sleep. This is the most important injection window for recovery and body composition.

The fasting rule matters. Elevated insulin blunts GH secretion (Brazeau et al., 1982). If you inject right after a carb-heavy meal, you're fighting your own insulin response. Minimum 2 hours fasted before injecting. 3 hours is better. The most common 2x daily protocol: upon waking + 30 minutes before bed.

The research here is thin: mostly extrapolated from GHRH/GHRP studies and community experience. What we do know from the Ipamorelin studies (Johansen et al., 1999) is that receptor desensitization is less pronounced with Ipamorelin compared to older GHRPs like GHRP-2 or GHRP-6, which is one of the reasons it became the community favorite. But breaks are still recommended. From what we've seen on r/Peptides: users who run continuous cycles without breaks often report diminishing returns around the 16-week mark. Four weeks off resets the response in most cases.

Let's be real: this isn't a steroid. The effects are subtle and cumulative. Weeks 1-3: Most people notice sleep quality improvements first. Deeper sleep, more vivid dreams. This is the most consistently reported early effect and tracks with the GH pulse during slow-wave sleep. Weeks 4-6: Some users notice improved recovery: workouts feel less taxing, DOMS reduces. Mild changes in body composition may begin to appear. Weeks 8-12: The clearest period for body composition changes. Lean muscle preservation or modest gains, fat loss (particularly around the midsection) with consistent training and diet. Skin quality often improves, a commonly recorded effect linked to IGF-1 signaling.

What most people don't tell you: diet and training still do 90% of the work. These peptides are not a shortcut. They're more like a multiplier on a protocol that's already working.

100 mcg of each peptide per injection, 2x daily (morning fasted and 30 minutes before bed) is the standard starting protocol. Most people stay here for a full cycle before considering increasing to 200 mcg. More is not better above 200 mcg per injection.

Yes. They're typically drawn into the same insulin syringe and injected subcutaneously (usually abdominal fat). There's no known interaction issue and the combination is more effective than either peptide alone: Ipamorelin provides the ghrelin signal while CJC-1295 provides the GHRH signal, hitting both GH release pathways simultaneously.

Most people notice sleep improvements within the first 2 weeks. Measurable body composition changes typically take 8-12 weeks. This is not a fast-acting compound: expect gradual, cumulative effects over a full cycle.

Without DAC is the community preference for most goals because it mimics the natural pulsatile GH release pattern. With DAC creates a steady-state GH elevation, which some users find less physiologically ideal. Neither is definitively "better" from a research standpoint: it depends on your protocol preferences and injection frequency tolerance.

The human safety data is limited. Most studies are short-term. Community consensus supports cycling with breaks. Reported side effects at standard doses are generally mild: water retention in early weeks, tingling at injection sites, and vivid dreams.

1. Brazeau P, et al. "Hypothalamic polypeptide that inhibits the secretion of immunoreactive pituitary growth hormone." Science, 1982. 2. Johansen PB, et al. "Ipamorelin, the first selective growth hormone secretagogue." European Journal of Endocrinology, 1999. 3. Walker RF. "Sermorelin: a better approach to management of adult-onset growth hormone insufficiency?" Clinical Interventions in Aging, 2006. 4. Veldhuis JD, et al. "Endogenous GH secretion responses to GH-releasing hormone and GH-releasing peptide in healthy men." Journal of Clinical Endocrinology & Metabolism, 2008. 5. Teichman SL, et al. "Prolonged stimulation of growth hormone secretion by CJC-1295." Journal of Clinical Endocrinology & Metabolism, 2006. 6. r/Peptides community protocol surveys, 2024-2026 (aggregate community data, not peer-reviewed).