CJC-1295 / Ipamorelin Dosage: Complete Blend Protocol [2026]

The CJC-1295 and Ipamorelin stack is the most popular growth hormone secretagogue combination for athletes and biohackers. This comprehensive guide covers exact dosing protocols, vial reconstitution, timing optimization, cycling strategies, lab monitoring, and what to expect at different dose levels.

Understanding the CJC-1295 / Ipamorelin Stack

Before diving into dosing specifics, it's important to understand how these two peptides work together. CJC-1295 is a growth hormone-releasing hormone (GHRH) analog that acts on GHRH receptors. Ipamorelin is a growth hormone-releasing peptide (GHRP) and ghrelin receptor agonist that works through a different pathway. The combination creates synergistic GH stimulation: they work on different receptor mechanisms, so together they produce more GH release than either alone.

Both peptides are stable, don't require refrigeration before reconstitution (unlike some other peptides), and can be stored easily. The 5mg/5mg blend (5 milligrams of CJC-1295 + 5 milligrams of Ipamorelin in a single vial) is the standard formulation, allowing flexible dosing by simply adjusting injection volume.

Unlike exogenous growth hormone injection (which shuts down natural GH production), CJC-1295 and Ipamorelin work with your body's natural endocrine system to enhance it. This is why suppression is minimal and recovery after cycling is quick—you're amplifying natural signaling, not replacing it.

Vial Reconstitution: The 5mg/5mg Standard

Most CJC-1295 + Ipamorelin blends come as a 5mg + 5mg (10mg total) lyophilized powder in a single vial. Proper reconstitution is essential for accurate dosing.

Step-by-Step Reconstitution:

1. Gather supplies: Sterile bacteriostatic water (typically 0.9% saline with benzyl alcohol preservative), sterile syringe (typically 1mL), and sterile needle (25-27 gauge).
2. Draw bacteriostatic water: Draw up 1.0mL of bacteriostatic water into your syringe.
3. Inject into vial: Inject the 1.0mL of water into the peptide vial slowly. Do not shake vigorously—let the solution mix by gentle swirling or rest for 1-2 minutes.
4. Final concentration: You now have 10mg of peptide (5mg CJC-1295 + 5mg Ipamorelin) dissolved in 1.0mL of bacteriostatic water = 10mg/mL total concentration.
5. Break down by peptide: Each peptide is 5mg/mL individually. So 0.1mL (100 units on an insulin syringe) = 500mcg total = 250mcg CJC-1295 + 250mcg Ipamorelin.
6. Storage: Refrigerate at 2-8°C. Do NOT freeze. Vial remains stable for 8-10 weeks when properly refrigerated.

Dosing Math Made Simple: Most standard insulin syringes have 100 unit markings. On a 10mg/mL vial:

• 10 units (0.1mL) = 100mcg per peptide (250mcg total)
• 20 units (0.2mL) = 200mcg per peptide (500mcg total)
• 30 units (0.3mL) = 300mcg per peptide (750mcg total)

Always draw with a new sterile needle to maintain sterility. Inject insulin-needle style subcutaneously (very small needle, minimal pain). Many users pinch an area of abdominal fat and inject there, rotating sites to prevent lipohypertrophy.

Standard Dosing Protocols: Beginner to Advanced

Beginner Protocol (First-Time Users):

• Dosing: 100mcg each peptide daily (10 units / 0.1mL from 10mg/mL vial)
• Timing: Inject bedtime daily
• Duration: 8-10 weeks first cycle
• Off-Cycle: 4 weeks complete break
• Expected gains: 2-4 lbs lean muscle, improved recovery, better sleep quality
• Cost per cycle: ~$150-250 (one 5/5mg vial)
• Rationale: Starting low allows assessment of individual response and side effect tolerance. Many people respond excellently to 100mcg; no need to jump to higher doses immediately.

Intermediate Protocol (Second+ Cycles or Larger Athletes):

• Dosing: 200mcg each peptide daily (20 units / 0.2mL from 10mg/mL vial)
• Timing: Bedtime daily, optionally add 100mcg morning dose for 2x daily protocol
• Duration: 12 weeks
• Off-Cycle: 6 weeks break
• Expected gains: 4-8 lbs lean muscle, significant IGF-1 increase, noticeable strength improvements
• Cost per cycle: ~$300-500 (approximately 1.5 vials)
• Rationale: 200mcg daily is considered the "sweet spot" for most users—potent response without excessive side effects. This is the dose most athletes settle on permanently.

Advanced Protocol (Competitive Athletes, Very Large Individuals):

• Dosing: 300mcg each peptide daily (30 units / 0.3mL), often split into 2-3 daily injections (100mcg morning, 100mcg midday, 100mcg evening)
• Timing: 2-3x daily spread throughout the day to maximize GH stimulation at multiple time points
• Duration: 14-16 weeks
• Off-Cycle: 6-8 weeks break
• Expected gains: 8-12 lbs lean muscle, dramatic IGF-1 elevation, significant strength and performance improvements
• Cost per cycle: ~$600-800 (approximately 2-2.5 vials)
• Rationale: Higher doses for elite athletes who can handle the injection frequency and are aiming for maximum results. At 300mcg, benefits plateau compared to 200mcg for most people—marginal additional gains don't always justify the extra injections.

Optimal Injection Timing and Frequency

When and how often you inject significantly impacts results. Growth hormone has natural circadian rhythms, and timing optimization amplifies the peptide effects.

Single Daily Injection (Beginner/Intermediate):

• Best timing: 30-60 minutes before bed, or immediately before sleep
• Why: Natural GH secretion peaks during the first 2-3 hours of sleep (deep sleep stages). Injecting before bed enhances this natural pulse dramatically.
• Advantage: Minimal injection frequency (once daily), easy to remember, good results
• Disadvantage: Less aggressive GH stimulation than multiple injections

Twice Daily Injection (Intermediate/Advanced):

• Timing: Morning upon waking (to enhance cortisol-associated GH pulse) + bedtime
• Dosing example: 150mcg morning + 150mcg evening = 300mcg total daily
• Advantage: Two natural GH peaks (morning and sleep), greater overall GH stimulation
• Disadvantage: Two daily injections required

Thrice Daily Injection (Advanced/Competitive Athletes):

• Timing: Morning (upon waking) + Midday (2-3 PM) + Evening (bedtime)
• Dosing example: 100mcg at each time point = 300mcg total daily
• Advantage: Three GH stimulus points daily, most aggressive GH elevation
• Disadvantage: Three injections required, higher cost, potentially unnecessary for most users

Most Effective Practical Approach: The bedtime single injection or morning + bedtime double injection produces 80-90% of the maximum GH response with significantly less injection burden than thrice daily. Most experienced users settle here—optimal risk-benefit balance.

Complete Cycling Schedules: On and Off Protocols

Proper cycling prevents tolerance and maintains long-term effectiveness. Unlike testosterone-based compounds, GH secretagogues can be cycled on and off without suppression, but receptor sensitivity decreases with continuous use.

Standard On/Off Cycle (Most Recommended):

• Weeks 1-12: Active protocol (200mcg each peptide daily)
• Weeks 13-16: Complete break (zero peptides)
• Weeks 17-28: Second cycle if desired, or permanent off
• Benefits: Maintains receptor sensitivity, GH response remains robust across cycles

Aggressive Cycle (Competitive Athletes):

• Weeks 1-16: Active protocol (300mcg each peptide daily, 2-3x daily injections)
• Weeks 17-24: Complete break (8 weeks off)
• Benefits: Longer on-cycle allows more growth accumulation; longer off-cycle resets tolerance

Maintenance Cycle (Long-Term Users):

• Months 1-3: Active protocol (200mcg daily)
• Months 4-5: Reduced dose (100mcg daily) - "bridging" phase
• Months 6: Off entirely
• Repeat: Cycle restarts month 7
• Benefits: Continuous improvement without developing complete tolerance; more sustainable long-term approach

What NOT to Do: Don't use year-round continuously—tolerance develops significantly by week 8-10, and GH response drops substantially. Some users try extending cycles to 20+ weeks hoping for better results, but research shows most benefits occur in the first 12 weeks; beyond that, returns diminish rapidly due to downregulation.

Lab Monitoring: IGF-1 and Other Markers

Lab work helps optimize dosing and monitor safety. Knowing your IGF-1 response tells you whether your dose is appropriate.

Baseline Labs (Before Starting):

• Growth hormone (fasting morning)
• IGF-1
• Glucose (fasting)
• Insulin
• Lipid panel (total cholesterol, LDL, HDL, triglycerides)

Mid-Cycle Labs (Week 6-8 of Cycle):

• IGF-1 (most important): Primary marker of GH response. Normal range varies by lab (typically 90-350 ng/mL for young adults). On CJC/Ipamorelin, expect 200-400 ng/mL, potentially higher depending on dose and response. Values over 500 ng/mL are associated with increased acromegaly and cancer risk long-term and suggest dose is excessive.
• Glucose: GH antagonizes insulin (can reduce insulin sensitivity). Fasting glucose should remain under 100 mg/dL; if elevated, reduce dose.
• Lipids: GH can improve lipids (increase HDL, decrease triglycerides), but check to monitor trends.

Post-Cycle Labs (2 Weeks After Finishing Cycle):

• Repeat IGF-1 and growth hormone to confirm recovery to baseline
• Confirms your body is recovering endocrine function normally

Interpreting Results:

• IGF-1 200-350 ng/mL: Optimal response, good dosing
• IGF-1 150-200 ng/mL: Suboptimal response; consider increasing dose by 50-100mcg
• IGF-1 over 450 ng/mL: Excessive; reduce dose or frequency
• Fasting glucose over 110 mg/dL: Reduced insulin sensitivity; reduce dose or cycling frequency

Side Effects: What to Expect

CJC-1295 and Ipamorelin are remarkably safe for peptides. Side effects are minimal and generally dose-related.

Common Mild Side Effects (100-300mcg doses):

• Increased appetite: Most common. GH secretagogues increase hunger slightly. Manage by tracking calories intentionally.
• Water retention: Mild, typically 2-5 lbs. Decreases when cycling off.
• Mild joint aches: Often a positive sign (means GH is working). Joint pain typically decreases as the cycle progresses.
• Tingling/numbness in hands: Usually at higher doses (250+ mcg). Related to carpal tunnel-like pressure. Resolves upon dose reduction or cycle completion.
• Injection site reactions: Rare with proper subcutaneous injection technique.

Rare Serious Side Effects:

• Hyperglycemia (elevated blood sugar) - manageable with dose reduction, very rare at 200mcg or below
• Allergic reaction - extremely rare, discontinue immediately if occurs

NOT Expected (Important Notes):

• NO testosterone suppression (unlike anabolic steroids)
• NO liver toxicity
• NO cardiovascular damage at therapeutic doses
• NO androgenic side effects (acne, hair loss, aggression)

What to Expect: Timeline of Effects

Week 1-2:

• Improved sleep quality
• Increased appetite
• Slight water retention

Week 3-4:

• Improved recovery from workouts
• Noticeable strength increases
• Better mood and motivation

Week 5-8:

• Visible muscle gain
• Dramatic IGF-1 increase (confirmed by lab work)
• Improved skin quality
• Possible mild joint aches (positive indicator)

Week 9-12:

• Noticeable body composition improvement
• Significant strength gains
• Overall health and well-being improvement