Sermorelin Dosing Protocol & CJC-1295/Ipamorelin Stack: The Complete GH Peptide Guide

If you've been researching growth hormone optimization, you've probably landed on two main camps: sermorelin dosing protocol veterans who swear by its simplicity, and the CJC-1295/Ipamorelin stack crowd who want more firepower. The good news? You don't have to pick a side — these peptides work through related but distinct mechanisms, and understanding both gives you a serious edge in building your GH peptide stack.

This guide breaks down exact dosing protocols, injection timing, reconstitution steps, and the key differences between your options so you can run these peptides confidently and efficiently.

What Are GHRH Peptides and Why Do They Matter?

Sermorelin and CJC-1295 are both GHRH (growth hormone-releasing hormone) analogs — synthetic peptides that mimic the natural signal your hypothalamus sends to your pituitary to release GH. Ipamorelin is a GHRP (growth hormone-releasing peptide) that works on a separate receptor, which is why stacking it with CJC-1295 creates a synergistic 1+1=3 effect.

The result: more GH pulses, bigger amplitude, and better recovery — without suppressing your natural production the way exogenous HGH does.

Sermorelin: The Entry-Level GH Peptide

Sermorelin was actually FDA-approved for pediatric GH deficiency before peptides became the biohacking mainstay. It has a short half-life (~12 minutes), which means it fires a sharp, physiologic GH pulse rather than a sustained elevation. That's actually a feature, not a bug — it mimics what your pituitary does naturally.

Sermorelin Solo Dosing Protocol

Starting recommendation: 200 mcg/night, 5 days on / 2 days off. This is where most biohackers see meaningful results without desensitization risk.

Why Bedtime Dosing Wins for Sermorelin

Your largest natural GH pulse happens in the first 90 minutes of deep sleep. Injecting sermorelin 30–60 minutes before bed amplifies this pulse by giving the pituitary a stronger signal right when it's already primed to fire. Morning or midday dosing is less efficient — your natural GH rhythm is suppressed during waking hours.

CJC-1295/Ipamorelin: The Performance Stack

CJC-1295 is a longer-acting GHRH analog. Ipamorelin is a selective GHRP with minimal cortisol or prolactin bleed — making it the cleanest GH secretagogue in the category. Together, they hit two different GH-release pathways simultaneously.

CJC-1295 With DAC vs. Without DAC (MOD GRF 1-29)

This is the most common source of confusion in the GH peptide cluster:

Bottom line: For stacking with Ipamorelin, CJC-1295 without DAC (MOD GRF 1-29) is strongly preferred. The sharp, pulsatile release matches Ipamorelin's action window and produces a more natural GH profile. CJC-1295 with DAC creates a GH "bleed" that can suppress sensitivity over time and doesn't pair as cleanly with GHRP timing.

CJC-1295/Ipamorelin Stack Dosing Protocol

Standard working dose: 200 mcg CJC-1295 (no DAC) + 200 mcg Ipamorelin per injection, once nightly. This is the most commonly run stack in the biohacking community and the one with the strongest anecdotal performance profile.

Sermorelin vs. CJC-1295/Ipamorelin: Which Should You Run?

Who should run sermorelin: First-time peptide users, those optimizing for sleep and longevity, or anyone who wants to dip a toe in GH peptides with a single, simple protocol.

Who should run CJC-1295/Ipamorelin: Biohackers targeting body composition, recovery acceleration, or wanting stronger output from their GH axis. Also ideal if you're already familiar with peptide injection protocol.

SubQ Injection Protocol: Reconstitution & Administration

Reconstitution Steps

1. 1Bacteriostatic water (BAC water) — always use BAC water, not sterile water. It preserves the peptide for 28–30 days refrigerated.
2. 2Typical reconstitution ratio: Add 2 mL BAC water to a 2 mg vial → 1 mcg/µL concentration. Adjust for your vial size.
3. 3Example math: 2 mg vial + 2 mL BAC water = 2,000 mcg / 2,000 µL = 1 mcg/µL. For a 200 mcg dose, draw 0.20 mL (20 units on a U-100 insulin syringe).
4. 4Inject BAC water slowly down the side of the vial — never directly onto the lyophilized powder. Swirl gently, don't shake.
5. 5Storage: Refrigerate after reconstitution. Reconstituted peptides are stable for ~28 days.

Injection Protocol

• Needle: 29–31g insulin syringe, 0.5" needle
• Site: Pinch subcutaneous fat — belly (around navel), love handles, or upper thigh
• Angle: 45–90° depending on body fat level
• Timing before bed: 30–60 minutes prior
• Timing pre-workout: 15–30 minutes before training (fasted state preferred)
• Food: Avoid carbs and fats 1–2 hours before and 30 minutes after injection — insulin blunts GH response

Timing Strategy: Bedtime vs. Pre-Workout

Bedtime dosing is the default for both protocols. It aligns with your natural GH circadian rhythm and maximizes the amplitude of your sleep pulse. This is the best choice for sleep quality, recovery, and anti-aging goals.

Pre-workout dosing (as a second injection for intermediate/advanced users) targets the exercise-induced GH pulse — stacking your peptide signal on top of the natural training-related GH surge. This can enhance fat oxidation and tissue repair from training. Run this as a second daily injection if your budget and goals support two-a-day dosing; never replace the bedtime dose with a pre-workout dose.

Complementary Peptide Protocols

Growth hormone peptides work best when recovery is optimized across the board. Two protocols pair especially well with this stack:

• BPC-157 — If you're dealing with nagging joint or tendon issues, BPC-157 accelerates tissue healing and has angiogenic properties that complement GH peptide recovery. See the full BPC-157 dosing protocol.
• TB-500 — Thymosin Beta-4 is the go-to for systemic injury recovery and flexibility. Many advanced users stack TB-500 with GH peptides during loading phases. See the complete TB-500 dosing protocol.

Frequently Asked Questions