CJC-1295 + Ipamorelin is the most-recommended growth hormone peptide stack in research use because it combines two complementary mechanisms: CJC-1295 raises baseline GH, Ipamorelin triggers a clean GH pulse without elevating cortisol, prolactin, or appetite. Run together once daily before bed, the stack synchronizes with your natural GH rhythm and produces stronger and longer GH release than either peptide alone. This guide covers how CJC-1295 ipamorelin works, dosing protocols, what to expect on a 12-week cycle, and the side effects most articles ignore.
This stack accounts for about 40% of our growth hormone peptide orders across Indonesia and Southeast Asia. The customer outcomes are predictable: better sleep within 1 to 2 weeks, mild fat loss and recovery improvement by week 4, modest lean gains by week 8 to 12.
What Is CJC-1295 + Ipamorelin?
The two peptides act on different parts of the GH release pathway:
- CJC-1295: a GHRH (growth hormone releasing hormone) analog. It binds to the GHRH receptor on the pituitary and amplifies the body’s natural GH-release signal. Available in two versions: with DAC (Drug Affinity Complex, week-long half-life) and without DAC (8 to 30 min half-life).
- Ipamorelin: a selective GHRP (growth hormone releasing peptide) and ghrelin mimetic. It triggers a sharp GH pulse from the pituitary by acting on a different receptor than CJC. Selectivity is the key: unlike older GHRPs (GHRP-2, GHRP-6), Ipamorelin does not significantly elevate cortisol, prolactin, or hunger.
Used together, the two peptides work synergistically. CJC primes the pituitary; Ipamorelin triggers the release. The resulting GH pulse is bigger and longer than either peptide alone produces.
Why Stack CJC-1295 With Ipamorelin?
The biological rationale:
- Two different receptor pathways: GHRH receptor (CJC) and GHSR (Ipamorelin). Activating both produces additive, not redundant, signaling.
- CJC raises baseline, Ipamorelin spikes the pulse: the result is a higher peak from a higher floor.
- Ipamorelin’s selectivity protects you from GHRP side effects: no cortisol surge, no prolactin elevation, no hunger spike. CJC contributes nothing on those axes either.
- Pulsatile delivery preserves natural GH rhythm: unlike synthetic hGH which floods the system constantly, this stack triggers GH the way the body would, just bigger.
Customer-reported pattern: smoother, deeper sleep within the first 7 to 10 days; fat loss and recovery improvement by week 4; visible muscle definition gains by week 8.
CJC-1295 With DAC vs Without DAC
| Version | Half-life | Frequency | Best for |
|---|---|---|---|
| CJC-1295 with DAC | ~7 days | 1 to 2x weekly | Convenience, set-and-forget protocol |
| CJC-1295 no DAC (Mod GRF 1-29) | ~30 minutes | Daily, often pre-bed | Mimicking natural pulsatile GH release |
For stacking with Ipamorelin, no-DAC is preferred. Reason: the daily co-injection times the GH pulse with your natural pre-sleep window, which is when the body most efficiently uses GH for tissue repair and fat mobilization. The week-long DAC version creates constant elevation, which causes faster receptor desensitization.
CJC-1295 Ipamorelin Dosage Protocol
The most common research-use protocol:
- CJC-1295 (no DAC): 100 mcg, subcutaneous, before bed, daily
- Ipamorelin: 200 to 300 mcg, subcutaneous, before bed, daily
- Total injection: combine in the same insulin syringe (both peptides are stable when mixed in bacteriostatic water for short periods)
- Timing: 30 to 60 minutes before sleep, on an empty stomach (no food for at least 2 hours prior)
- Cycle length: 12 weeks on, 4 weeks off
The pre-bed timing is non-negotiable. Eating before injection (especially carbs) raises insulin, which blunts GH release. Daytime injection on an empty stomach also works but the pre-sleep window aligns best with the natural GH peak.
Reconstitution and Storage
Both peptides come lyophilized. Reconstitution:
- CJC-1295 (no DAC) 5 mg vial: add 2.5 mL bacteriostatic water → 2 mg/mL → 100 mcg per 0.05 mL
- Ipamorelin 5 mg vial: add 2.5 mL bacteriostatic water → 2 mg/mL → 250 mcg per 0.125 mL
Combined daily dose: 100 mcg CJC + 250 mcg Ipamorelin = 0.05 mL + 0.125 mL = 0.175 mL total (about 17 to 18 units on an insulin syringe).
Storage: refrigerated (2 to 8 °C) after reconstitution. Stable for 30 days. Lyophilized vials stable at room temperature short-term, but refrigeration preferred. See our peptide storage guide for technique.
What to Expect: Cycle Timeline
| Week | Typical changes |
|---|---|
| 1 to 2 | Deeper sleep, vivid dreams, mild morning grogginess for some users |
| 3 to 4 | Joint comfort, faster recovery between training sessions |
| 5 to 8 | Visible fat loss (especially abdominal), modest muscle definition |
| 9 to 12 | Lean mass gain, plateau begins; reduced hunger |
| Off cycle (4 weeks) | Most gains hold; sleep quality may regress to baseline |
The fat loss and lean gain are modest individually but compound with consistent training. Most customers report 2 to 4 kg lean mass gain and 1 to 3 kg fat loss across a full 12-week cycle when paired with proper resistance training and adequate protein.
Side Effects of CJC-1295 + Ipamorelin
The stack has one of the cleanest side effect profiles in GH peptides:
- Common (mild): tingling at injection site, mild flushing within 5 minutes of injection, vivid dreams, occasional injection site irritation.
- Less common: fluid retention (slight finger or ankle puffiness in first 2 to 3 weeks, usually resolves), brief hypoglycemia symptoms in fasted users.
- Rare: numbness in hands (carpal tunnel-like symptoms from elevated GH; reversible on dose reduction), elevated fasting glucose (GH is mildly diabetogenic; uncommon in this dose range).
What you do NOT get with this stack (compared to GHRP-2 or GHRP-6):
- Significant cortisol elevation
- Significant prolactin elevation
- Hunger spikes after injection
This is why CJC + Ipamorelin became the standard recommendation. Older GHRP combinations work but came with side effect baggage that Ipamorelin’s selectivity eliminated. See our GHRP-2 vs GHRP-6 comparison for the older options.
Common CJC-1295 Ipamorelin Mistakes
- Eating too close to injection: meal-induced insulin blunts GH release. Wait 2 hours after dinner before pre-bed dose.
- Using DAC version daily: DAC is designed for weekly dosing, not daily stacking. Daily DAC dosing causes faster receptor desensitization.
- Skipping the off-cycle: continuous use beyond 12 weeks reduces returns. The 4-week off-cycle restores pituitary responsiveness.
- Stacking with too many other peptides: adding TB-500, BPC-157, IGF-1 LR3 all at once means you cannot diagnose what is helping.
- Underdosing Ipamorelin: 100 mcg works but 200 to 300 mcg produces a more robust GH pulse. Cost difference is minimal.
Stacking CJC + Ipamorelin With Other Peptides
Compatible additions for specific goals:
- For recovery: add BPC-157 250 mcg daily. See the recovery stack guide.
- For visceral fat: add Tesamorelin 1 mg morning.
- For aggressive muscle gain: add IGF-1 LR3 post-workout (advanced users only, short cycles).
- Avoid: stacking with another GHRP (Hexarelin, GHRP-2). Pituitary receptor competition reduces total GH output.
Frequently Asked Questions
Can I inject CJC-1295 and Ipamorelin in the same syringe?
Yes. Both peptides are stable when mixed in bacteriostatic water at the dose volumes typical for daily use. Combine in one syringe for convenience and a single injection site.
How long until I see results from CJC + Ipamorelin?
Sleep changes appear in week 1 to 2. Recovery improvements by week 3 to 4. Visible body composition changes (fat loss, muscle definition) start around week 5 to 8 and accelerate through week 12.
Should I take CJC + Ipamorelin in the morning or at night?
Pre-bed is preferred because it synchronizes with your natural GH peak during deep sleep. Morning fasted dosing also works but delivers the GH pulse during a period when its effects are less amplified by your circadian biology.
Is CJC-1295 + Ipamorelin safe long-term?
Short-term safety (12-week cycles) is well-tolerated in research use. Long-term human safety beyond 6 to 12 months is less studied. Most experienced users limit to 2 to 3 cycles per year with proper off-cycles.
Do I need post-cycle support?
Unlike anabolic steroids, CJC + Ipamorelin do not suppress endogenous testosterone or HPTA function. No PCT (post-cycle therapy) is needed. The 4-week off-cycle is for pituitary receptor re-sensitization, not hormonal recovery.
Where can I get research-grade CJC-1295 and Ipamorelin?
For research-grade CJC-1295 (no DAC) and Ipamorelin in Indonesia and Southeast Asia, see our pricelist. Order directly via WhatsApp with temperature-controlled delivery.
Related Guides
This article is for informational and research-use purposes only. Peptides referenced are not approved by the FDA for therapeutic use. Always consult a qualified medical professional before starting any new protocol.