CJC-1295 + Ipamorelin Dosing Guide: Pulsatile GH Research Protocols

Dosing — 2026-05-07

CJC-1295 + Ipamorelin is the most-studied growth hormone secretagogue combination in research literature. Dosing for the combo is more about timing and frequency than absolute milligram numbers — get the timing wrong and you're not augmenting natural GH pulses, you're fighting them. This article covers the practical dosing landscape for both individual peptides and the co-formulated 10mg vial.

For researchers running a GH-amplification protocol: code WELCOME gets you 35% off the co-formulated CJC-1295 + Ipamorelin 10mg vial, individual CJC-1295 (no DAC) 10mg vials, individual Ipamorelin 10mg vials, and bac water for reconstitution. Sourcing matched-batch GH secretagogue material is the difference between a clean dose-response curve and noisy data.

The Per-Dose Standard

Across the published literature on this combination, the consistent per-dose range is:

• CJC-1295 (no DAC): 100-300 mcg per injection
• Ipamorelin: 100-300 mcg per injection
• Total per injection (when co-formulated 5mg + 5mg): 200-600 mcg of combined material

The most commonly reported research dose is 300 mcg of each, which translates to 600 mcg total when using the 10mg co-formulated vial (5mg of each peptide).

Why These Numbers

Both compounds are extremely potent at the receptor level. The dose-response curve for GH release is approximately log-linear in this range — doubling the dose does not double the GH pulse. Above ~300 mcg per peptide, additional dose mostly produces additional side-effect burden (water retention, joint symptoms, mild hyperglycemia) without a meaningful additional GH peak.

This is fundamentally different from how researchers think about reta or tesamorelin dosing, where mg-scale numbers translate roughly proportionally to effect. With CJC + Ipa, the goal is hitting the GH pulse window, not maximizing exposure.

Frequency: Once Daily vs. Twice Daily vs. TID

Three common dosing patterns appear in research:

Once daily — bedtime The simplest protocol. A single bedtime injection of 200-300 mcg of each peptide augments the natural slow-wave-sleep GH peak. This is the entry-level dosing pattern and the one most published "GH secretagogue" protocols use.

Twice daily — morning fasted + bedtime Doubles the GH pulse opportunities. Morning fasted dosing aligns the injection with low circulating insulin/glucose (insulin blunts GH release). Bedtime augments the natural sleep peak. Twice-daily protocols typically use 200 mcg of each peptide per dose to keep total daily exposure in a similar range.

Three times daily — morning + post-workout + bedtime The most aggressive protocol. Adds a post-exercise dose to capitalize on the natural exercise-induced GH peak. Doses are usually 100-200 mcg of each peptide to keep total daily exposure reasonable. TID is uncommon in long protocols because of practical injection burden.

Timing Around Food and Insulin

The single most important practical timing rule: inject at least 2-3 hours after the last meal containing significant carbohydrate or fat. Insulin and elevated glucose blunt the GH pulse by 50% or more — a research dose injected 30 minutes after a carb-heavy meal produces a much smaller GH peak than the same dose injected fasted.

In practice this means: - Bedtime dose works because most subjects have stopped eating 2-3 hours earlier - Morning fasted dose works because overnight fasting clears insulin - Pre-meal dosing (the worst pattern) actively interferes with the GH pulse

Reconstitution and Volume Math (Co-formulated Vial)

A co-formulated CJC-1295 + Ipamorelin 10mg vial contains 5mg of each peptide. Most researchers reconstitute with 2 mL bacteriostatic water, yielding 5 mg/mL of combined material (2.5 mg/mL of each peptide).

At that concentration:

Single-digit-unit doses are common, which is why precise reconstitution volume matters. A 10mg vial reconstituted with 2 mL gives 80-100 doses depending on protocol — the vial typically lasts 2-3 months of single-injection daily use.

For separate vials: - CJC-1295 10mg + 2 mL bac water = 5 mg/mL (300 mcg = 0.06 mL = 6 units) - Ipamorelin 10mg + 2 mL bac water = 5 mg/mL (300 mcg = 0.06 mL = 6 units)

If you're injecting separate vials, that's two injections per dose — most researchers prefer the co-formulated vial just to avoid the doubled injection count.

Cycling

Unlike reta (which doesn't cycle in published protocols) or tesamorelin (where cycling is common but not trial-validated), CJC + Ipa typically does cycle in research protocols:

• 8-12 weeks on, 4 weeks off is the most common pattern
• Continuous administration is less studied — receptor desensitization is a theoretical concern with sustained GHRH and ghrelin pathway activation, though hard data on the timeline is limited

The cycle-off period also serves as a natural IGF-1 monitoring window — letting the GH axis return to baseline allows reassessment between cycles.

Stacking Considerations

When CJC + Ipa is added to a tesamorelin-containing protocol (the Shred & Bulk Stack):

• Tesa stays at 2 mg/day — no reduction needed
• CJC + Ipa typically dosed at the same bedtime as tesa to consolidate injections
• Two injections at bedtime (tesa + CJC/Ipa) is the standard pattern

Some protocols stagger by 30-60 minutes (tesa first, CJC/Ipa second) to spread the GHRH stimulation across a wider window. There's no published data showing a meaningful difference between staggered and simultaneous dosing.

Side Effects and What to Monitor

The dose-dependent GH-amplification side effects to watch for:

• Mild water retention — usually transient, more common at higher doses
• Joint or carpal-tunnel-like symptoms — most common at sustained high dosing; resolves on dose reduction
• Mild hyperglycemia — particularly in subjects with insulin resistance
• Injection site reactions — typically mild
• Numb hands on waking — early sign of carpal-tunnel-like fluid effects, indicates dose reduction

The selectivity of ipamorelin (minimal cortisol or prolactin effects) is one of the main reasons it's preferred over older GHRPs like GHRP-2 or GHRP-6 in research protocols.

Storage and Handling

• Lyophilized: -20°C for long-term, 2-8°C for short-term
• Reconstituted: 2-8°C, used within 28 days, protected from light
• Bacteriostatic water (0.9% benzyl alcohol) is the standard diluent
• Do not freeze reconstituted material — peptide bond integrity is compromised by freeze-thaw

Practical Bottom Line

Most research protocols converge on a similar pattern: 200-300 mcg of each peptide, dosed at bedtime, in 8-12 week cycles with 4-week washout periods. This is the highest-evidence pattern, and it's the dose range where the GH-pulse-augmentation effect is well-characterized without crossing into avoidable side-effect territory.

Code WELCOME at checkout unlocks 35% off the co-formulated CJC + Ipa 10mg vial, individual CJC-1295 (no DAC) and Ipamorelin vials, the Bulk Stack (CJC + Ipa pairing), the Shred & Bulk Stack (full recomp protocol), and bacteriostatic water for reconstitution. Every vial includes a batch-matched COA showing 99%+ HPLC purity.

Disclaimer: All information presented in this article is for educational and informational purposes only. Platinum Biolabs does not promote or endorse the use of peptides for human consumption. All products sold by Platinum Biolabs are intended strictly for laboratory and research use only. Consult a qualified healthcare professional before making any health-related decisions.