If I had to pick one peptide stack to keep in my fridge for the rest of my life, it would be CJC-1295 with Ipamorelin. I’ve run dozens of growth hormone secretagogues over the years — sermorelin, tesamorelin, MK-677, GHRP-2, GHRP-6, hexarelin, the works. Nothing beats CJC-1295 paired with Ipamorelin for clean, sustained growth hormone elevation without the side-effect profile that wrecks people on the heavier secretagogues.
Here’s the no-nonsense breakdown of why this stack works, exactly how I run it, and the dosing mistakes I see ruin people’s IGF-1 response.
The Two-Peptide Synergy
CJC-1295 is a GHRH analog — it tells your pituitary to release growth hormone. Ipamorelin is a ghrelin mimetic — it tells your pituitary to release growth hormone through a different receptor pathway. When you stack them, you hit both pathways simultaneously, and the resulting GH pulse is multiplicative, not additive. This is why the combination outperforms either peptide run solo.
The other reason this stack is the gold standard: Ipamorelin is the cleanest of the ghrelin mimetics. Unlike GHRP-2 and GHRP-6, it doesn’t spike cortisol or prolactin. No mood crash, no water retention, no appetite jacking up at 11pm. You get the gh pulse without the metabolic baggage.
CJC-1295 With or Without DAC?
This is the single most important decision and most people get it wrong. CJC-1295 comes in two forms: with DAC (Drug Affinity Complex) and without. The DAC version has a half-life of about 8 days. The non-DAC version (also called Mod GRF 1-29 or CJC-1295-NoDAC) has a half-life of about 30 minutes.
For physiological pulsatile dosing — the way your pituitary actually wants to fire — you want the non-DAC version. You inject right before bed, you get a clean pulse that mimics natural GH release, and your body returns to baseline for the next pulse cycle. This is what I run. This is what I recommend.
The DAC version creates a tonic, sustained elevation of GH and IGF-1. That sounds appealing on paper but it desensitizes your receptors and shuts down your natural pulsatile rhythm. After 8-12 weeks of CJC-1295 DAC, your endogenous GH production craters. You become dependent. That’s not a peptide protocol, that’s GH replacement therapy by another name.
My Exact Protocol
Here’s what I run, every detail:
- CJC-1295 No-DAC: 100 mcg subcutaneous, once nightly, 30 minutes before bed
- Ipamorelin: 200 mcg subcutaneous, in the same syringe as CJC-1295, once nightly
- Injection site: Lower abdomen, rotating sites
- Cycle length: 12 weeks on, 4 weeks off
- Fasted state: No food or insulin spike for 2 hours before injection — carbs and especially insulin blunt the GH pulse hard
The fasted-state rule is non-negotiable. If you eat dinner at 9pm and inject at 9:30pm, you’ve wasted the injection. Your insulin response inhibits GH release. Eat at 7pm, train (optional, but compounds GH pulse), then inject at 10pm. That’s the window.
For aggressive users, you can add a second injection: 100 mcg CJC-1295 + 200 mcg Ipamorelin first thing on waking, fasted, before any food. That doubles the daily GH pulses. I do this during fat-loss phases, stick to once-nightly during muscle-building phases.
Reconstitution and Storage
Standard 5 mg vial of CJC-1295: reconstitute with 2.5 mL bacteriostatic water, you get 200 mcg per 0.1 mL. Standard 5 mg vial of Ipamorelin: reconstitute with 2.5 mL bacteriostatic water, you get 200 mcg per 0.1 mL.
So my nightly dose is 0.05 mL of CJC-1295 (100 mcg) + 0.1 mL of Ipamorelin (200 mcg) drawn into the same insulin syringe. Total volume 0.15 mL. Sub-Q into the abdomen, done in 10 seconds.
Store reconstituted vials in the refrigerator. They’re stable for about 30 days reconstituted. Lyophilized (powder) vials are stable for years if kept cold. Never freeze reconstituted peptides — the freeze-thaw cycle destroys peptide bonds.
What to Expect — Week by Week
The first effect you notice, usually within 5-7 days, is sleep. Deeper, more restorative, more vivid dreams. The slow-wave sleep elevation from GH is real and immediate. If you’re not sleeping deeper by week 2, your peptide is bunk.
By week 4, recovery between training sessions accelerates noticeably. You’re less sore, you bounce back from heavy lower-body sessions in 48 hours instead of 72. Joint comfort improves — old aches start fading.
By week 8, body composition shifts. Subcutaneous fat thins out — particularly the lower back and around the obliques where stubborn fat hides. You don’t necessarily lose weight on the scale, but you look leaner. Skin tightens. Hair and nails grow faster.
By week 12, IGF-1 should be solidly elevated on bloodwork. Baseline IGF-1 for a 40-year-old man typically sits around 150-180 ng/mL. On this protocol, expect 250-320 ng/mL. That’s a meaningful, anabolic elevation without crossing into the supraphysiological territory that drives carpal tunnel and water retention.
Bloodwork I Pull Every Cycle
IGF-1 is the marker that matters for peptide GH protocols — direct GH measurement is useless because the half-life is so short. Pull it baseline, then again at week 8 and week 12.
Pull fasting glucose and HbA1c. GH is mildly diabetogenic — it reduces insulin sensitivity at high doses. At 100 mcg CJC + 200 mcg Ipamorelin nightly, this is rarely a problem, but verify rather than assume. If fasting glucose creeps above 95, drop the dose or add metformin 500 mg.
Pull a thyroid panel. Heavy GH protocols can suppress T4 to T3 conversion in a small percentage of users. Mine has stayed clean across multiple cycles, but verify your own.
The Mistakes That Wreck People
Mistake one: dosing too high. People think more is better. With GH peptides, more is just more side effects. 100 mcg CJC + 200 mcg Ipamorelin is the sweet spot. Doubling it gives you maybe 15% more GH pulse and a lot more water retention.
Mistake two: eating before injection. As above. Insulin kills the pulse.
Mistake three: never cycling off. Year-round use desensitizes the GHRH and ghrelin receptors. 12 on, 4 off keeps you responsive forever. Skip this and your year-two response will be half what your year-one response was.
Mistake four: stacking with HGH. People run pharmaceutical HGH alongside CJC-1295 thinking it’ll be additive. It isn’t. The exogenous HGH suppresses your own pituitary response, which makes the secretagogue dead weight. Pick one approach.
Cost and Sourcing
A 12-week cycle of CJC-1295 + Ipamorelin runs roughly $250-$400 from a quality vendor with HPLC verification. That’s about $1 a day for a peptide stack that delivers genuine, measurable IGF-1 elevation. Compare that to pharmaceutical HGH at $800-$1500 a month and you understand why this protocol has stayed the gold standard for fifteen years.
Same sourcing rules as every peptide article I’ve written: HPLC purity certificates per batch. No exceptions. Bunk peptides are the single biggest reason people declare a protocol “doesn’t work.”
The Bottom Line
CJC-1295 No-DAC stacked with Ipamorelin is the most user-friendly, most studied, most reliable GH peptide protocol on the market. Sleep gets better, recovery accelerates, body composition tightens, IGF-1 climbs into the optimal range. Side effects are minimal at sensible doses. The cost is a fraction of HGH.
If you’re over 35 and serious about staying anabolic, this is the foundational stack. Build other protocols around it. Every guy I’ve run this with — myself included — keeps coming back to it because nothing else delivers the same risk-to-reward ratio.