Growth Hormone Secretagogue Protocol

Category: Protocols Type: Stack Guide Read Time: 22 minutes Author: Peptides.NYC Editorial Last Updated: 2026-05-19 URL: https://peptides.nyc/learn/gh-secretagogue-protocol

Keywords: growth hormone secretagogue, CJC-1295 dosage, Ipamorelin protocol, GHRP stack, HGH peptides

Disclaimer: This content is for educational purposes only and is not medical advice. CJC-1295, Ipamorelin, GHRP-2, GHRP-6, and Hexarelin are research compounds. None are FDA-approved for human use, and all are banned by WADA for competitive athletes. Consult your healthcare provider before starting any peptide protocol.

Overview

Complete guide to CJC-1295, Ipamorelin, and GHRP stacks. Dosing schedules, timing around sleep and meals, and what to expect.

Growth hormone (GH) secretagogues are peptides that prompt the pituitary to release your own GH in a pulsatile fashion — rather than injecting recombinant HGH directly. The advantage: peptide-induced pulses preserve negative feedback regulation, somatostatin braking, and the natural rhythm of the GH/IGF-1 axis. This makes the safety profile materially different from rHGH, where supraphysiologic, non-pulsatile exposure can suppress endogenous production and elevate long-term risk.

Modern protocols typically combine a GHRH analog (Sermorelin, Mod GRF 1-29, CJC-1295, Tesamorelin) with a GHRP / ghrelin mimetic (Ipamorelin, GHRP-2, GHRP-6, Hexarelin). The synergy between these two classes — first characterized in the classic Bowers and Walker pharmacology work — is the foundation of every credible GH peptide stack.

Why pulsatility matters

The pituitary releases GH in roughly 6–10 discrete pulses per 24 hours, with the largest occurring during early slow-wave sleep. Between pulses, somatostatin actively suppresses GH. This rhythm is critical:

• Tissues respond differently to pulsatile vs continuous GH exposure.
• The IGF-1 axis downstream is calibrated to expect peaks and troughs.
• Negative feedback loops only function with intermittent signal.

This is the central reason peptide secretagogues are pharmacologically distinct from rHGH — and why preserving pulsatility is a recurring theme in protocol design.

GHRH vs GHRP Categories

The two peptide classes work on different pituitary receptors. Combining one of each is the standard approach.

GHRH analogs alone produce a modest GH bump. GHRPs alone produce a sharper but smaller pulse. Combined, they generate a synergistic pulse much larger than either alone.

Why Combine GHRH + GHRP

The combination is not additive — it is multiplicative. A typical GHRH-only injection might produce a 5–10x baseline GH spike. A GHRP-only injection might produce 3–5x. Combined, peak GH can rise 10–30x baseline depending on dose, timing, and individual response. This pulse amplitude amplification ("1 + 1 = 3") is the entire reason stacking exists.

Mechanism:

• GHRH primes somatotrophs to release more GH.
• GHRP suppresses somatostatin (the brake) and directly stimulates ghrelin receptors.
• The pituitary releases a much larger bolus than either signal alone could trigger.

This pharmacology was first mapped out in Bowers, Walker, and Teichman's work in the late 1990s and 2000s, and remains the canonical model.

CJC-1295 — With vs Without DAC

CJC-1295 exists in two forms, and the distinction matters enormously for protocol design.

The DAC (Drug Affinity Complex) tag binds CJC-1295 to albumin, extending its half-life to roughly a week. This creates continuous low-grade GHRH signaling. Benefit: weekly dosing. Tradeoff: the constant signal can blur the natural pulsatile rhythm the body relies on.

No-DAC / Mod GRF 1-29 mimics the brief, sharp action of endogenous GHRH. It pairs cleanly with a GHRP for a discrete pulse and is the protocol most often used by knowledgeable users.

Choosing Your GHRP

The four common GHRPs differ meaningfully in selectivity, potency, and side effects.

Ipamorelin is the most commonly recommended starting GHRP because it has no measurable effect on cortisol or prolactin. GHRP-2 is the next step up for users wanting a stronger pulse. GHRP-6 is favored when increased appetite is desired. Hexarelin is potent but desensitizes the GHS-R1a receptor quickly, so it's reserved for short cycles.

Standard Beginner Protocol

The canonical entry stack is CJC-1295 no-DAC + Ipamorelin, dosed at saturation, two to three times per day.

Reconstitute each vial separately with bacteriostatic water and draw both peptides into the same syringe at injection time. Many users combine them into a single SC shot in the abdomen.

Sample beginner week

• Mon–Sun, 10:30 PM: 100 mcg CJC-1295 no-DAC + 100 mcg Ipamorelin, fasted, SC abdomen
• Optional AM shot: 100/100 immediately on waking, no food for 30 min
• Optional pre-workout shot: 100/100 30 min before training, fasted

Most users see meaningful results from the pre-bed shot alone. Adding a second or third shot scales benefits but also scales the rigor required around food timing.

Advanced Protocols

Once tolerance and response are established, several variations exist.

Higher per-shot doses give diminishing returns. Frequency generally outperforms dose for total GH output.

Saturation Dose Concept

The GH pulse triggered by a GHRP follows a saturation curve. Around 100–200 mcg per shot, the somatotrophs have effectively maxed out the releasable GH pool for that pulse. Doubling the dose to 400 mcg does not double the pulse — it typically yields only a marginal increase while raising side effect risk (especially for GHRP-2/6/Hexarelin).

Practical implications:

• 100 mcg is the standard saturation dose for both GHRH and GHRP.
• Going to 200 mcg gives some additional response; beyond that, returns flatten.
• Frequency beats dose. Three 100/100 shots per day will outperform one 300/300 shot.
• The pituitary needs roughly 3 hours between pulses to fully reload.

Timing Around Sleep, Food, Training

GH secretagogue timing is not optional — it is the protocol.

Empty stomach is non-negotiable. Insulin and elevated blood glucose blunt GH release dramatically. Even a small carb-containing meal within 2 hours pre-injection or 30 minutes post-injection can wipe out the pulse. Protein-only meals are less disruptive but still ideally avoided in that window. Fats are the least disruptive but cleanest results come from a fully fasted shot.

Pre-bed shot is mandatory. The largest natural GH pulse occurs in the first 60–90 minutes of slow-wave sleep. A pre-bed injection amplifies this pulse and is responsible for most of the sleep-quality benefits reported.

Pre-workout shot (optional but powerful). Exercise itself triggers GH release. A 30-minute pre-training shot stacks the peptide pulse on top of the exercise pulse, producing the largest single GH spike of the day for most users. Do this fasted.

AM shot. Best done immediately on waking, fasted, before any food or caffeine.

Expected Outcomes

Effects roll in on a predictable timeline.

Biochemically, expect serum IGF-1 to climb 30–100 ng/dL from baseline, with most users landing in the upper half of the age-adjusted reference range rather than truly supraphysiologic territory. This is one of the key safety distinctions vs rHGH.

Side Effects & Safety

The GH peptide class is generally well-tolerated when dosed at saturation rather than supra-saturation. Common and rare effects:

Common:

• Mild flushing or warmth after injection (especially pre-bed)
• Tingling in hands/feet (transient water shifts)
• Vivid dreams
• Hunger (strong with GHRP-6, mild with GHRP-2, minimal with Ipamorelin)
• Mild peripheral water retention

Less common:

• Headache (often dehydration-related)
• Carpal tunnel-like symptoms at high doses
• Lethargy if dosed during the day on a full stomach
• Prolactin/cortisol rise (GHRP-2 high-dose, Hexarelin)

Long-term considerations:

• Insulin sensitivity can decline with sustained high IGF-1 — monitor fasting glucose
• Hexarelin desensitization within 4–6 weeks of continuous use

Contraindications:

• Active or suspected malignancy (IGF-1 elevation concern)
• Active retinopathy
• Pregnancy / breastfeeding
• Children and adolescents (interferes with developmental axis)

Cycling

Most users run 8–16 week cycles followed by a 4–8 week washout. Cycling serves two purposes: it restores GHS-R1a receptor sensitivity (especially relevant for GHRP-2/6/Hexarelin) and gives the body a chance to recalibrate IGF-1 and insulin sensitivity.

Year-round low-dose maintenance is feasible with the Ipamorelin + CJC-1295 no-DAC combo at 100/100 once per day pre-bed, particularly for users over 40 with documented age-related GH decline — but this is best done under physician oversight with periodic bloodwork.

Bloodwork to Monitor

Pre-cycle baseline and mid-cycle (week 6–8) checks are recommended.

Frequently Asked Questions

Q: Should a beginner use CJC-1295 with DAC or without DAC? A: Most knowledgeable users recommend starting with no-DAC (Mod GRF 1-29). It preserves the natural pulsatile pattern of GH release and is easier to discontinue if side effects appear. DAC is more convenient but produces continuous GHRH signaling.

Q: Ipamorelin vs GHRP-2 — which should I pick? A: Ipamorelin for cleanest tolerability and zero cortisol/prolactin impact. GHRP-2 for a stronger pulse if Ipamorelin response feels weak after 4–6 weeks. Most users start with Ipamorelin and only switch if needed.

Q: Do I really need a pre-workout shot? A: Not required, but it produces the largest single GH pulse of the day for most users. If you only do one shot per day, pre-bed is the mandatory one.

Q: Does the empty stomach rule really matter that much? A: Yes — and this is the single most common protocol error. Insulin from a recent meal can blunt the GH pulse by 50% or more. If you cannot do fasted, do at least a 2-hour gap with fat-only intake.

Q: Is year-round use safe? A: Low-dose maintenance (one pre-bed shot) is generally well-tolerated for extended periods, but bloodwork monitoring becomes more important. Most users still benefit from periodic 4–8 week washouts.

Q: Can I stack GH peptides with BPC-157 or TB-500? A: Yes — healing peptides have no pharmacological conflict with GH secretagogues and the stacks are commonly run together for injury recovery.

Q: Why not just use rHGH? A: rHGH provides non-pulsatile, supraphysiologic exposure that suppresses endogenous production and carries a steeper long-term risk profile. Secretagogues preserve negative feedback and the body's own rhythm.

Q: How fast will I see sleep improvements? A: Most users notice deeper sleep and more vivid dreams within 3–7 days of the first pre-bed shot. This is the fastest-reporting benefit of the class.

Q: How should I store reconstituted peptides? A: Refrigerate immediately after reconstitution with bacteriostatic water. Most GH secretagogues are stable for 2–4 weeks refrigerated. Protect from light and avoid freeze/thaw cycles, which can degrade peptide structure.

Related Content

• CJC-1295 Protocol
• GHRP-2 Protocol
• GHRP-6 Protocol
• Hexarelin Protocol
• GH Peptide Stacking Guide
• IGF-1 LR3 Protocol
• Bloodwork Checklist
• Injection Safety Checklist
• Reconstitution Cheat Sheet

Disclaimer: This content is for educational purposes only and is not medical advice. CJC-1295, Ipamorelin, GHRP-2, GHRP-6, and Hexarelin are research compounds and are not FDA-approved for human use. All are banned by WADA for competitive athletes. Consult a healthcare provider before starting any peptide protocol. Reference pharmacology drawn generically from the published work of Bowers, Walker, Teichman and colleagues.

Source: https://peptides.nyc/learn/gh-secretagogue-protocol