---
title: "CJC-1295 (Mod GRF 1-29) vs Ipamorelin: Side-by-Side"
description: "Compare CJC-1295 (Mod GRF 1-29) vs Ipamorelin — mechanism, half-life, dose range, side effects, and live vendor pricing. CJC-1295 (Mod GRF 1-29) from $29.00."
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            "text": "No-DAC for pulsatile mimicking and convenience-flexible dosers. DAC for once-weekly convenience and continuous GH elevation. No-DAC is the purist choice — it matches the natural overnight GH peak when timed with bedtime ipamorelin. DAC is fine for users who don't want to dose 2-3× daily."
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            "text": "You can, but it's mostly wasted. CJC-1295 amplifies GH release per pulse — it doesn't trigger pulses. Without ipamorelin (or another ghrelin agonist like MK-677), you're just increasing the amplitude of GH pulses your body already releases naturally. The stack with ipamorelin produces 2-3× the IGF-1 lift of CJC-1295 alone."
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            "text": "Sleep quality improves within 3-5 days (most users notice deeper sleep, better dreams). Body composition + recovery effects show in 4-6 weeks. Full IGF-1 elevation peaks around week 8 of consistent dosing. Most users run the stack in 12-week cycles with 4-week breaks."
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            "text": "Technically yes — MK-677 is also a ghrelin-receptor agonist but works orally with 24-hour half-life. Stacking it with ipamorelin adds receptor saturation without proportional benefit. Better: pick one ghrelin pathway. MK-677 + CJC-1295 (no ipamorelin) is a clean oral + injectable hybrid. Or stick with ipamorelin + CJC-1295 for the purist injectable stack."
          }
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          "name": "What's the difference between Ipamorelin + CJC-1295 stack and Sermorelin?",
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            "@type": "Answer",
            "text": "Sermorelin is just GHRH (1-29 fragment) — basically a less-engineered version of CJC-1295 no-DAC. Stacking sermorelin with ipamorelin works but you're getting less amplitude lift per mg than with CJC-1295. CJC-1295 no-DAC superseded sermorelin in most published protocols around 2015-2018."
          }
        }
      ]
    }
  ]
---

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3.  CJC-1295 (Mod GRF 1-29) vs Ipamorelin 

# CJC-1295 (Mod GRF 1-29) vs  Ipamorelin

Side-by-side comparison of CJC-1295 (Mod GRF 1-29) and Ipamorelin: mechanism, half-life, dose range, safety profile, and live vendor pricing. Updated continuously as new research and listings land.

CJC-1295 (Mod GRF 1-29) from $29.00

Ipamorelin from $24.99

## Live price snapshot

### CJC-1295 (Mod GRF 1-29)

Current low

$49.00

as of Apr 22, 2026

7-day low

—

no 7d data yet

30-day low

—

no 30d data yet

30-day change

— 

baseline building

### Ipamorelin

Current low

$59.99

as of Sep 5, 2026

7-day low

$59.99

30-day low

$59.99

30-day change

— 

baseline building

## CJC-1295 (Mod GRF 1-29)

Featured

CJC-1295 without DAC (also called Modified GRF 1-29 or MOD-GRF 1-29) is a 30-amino-acid analog of the first 29 residues of endogenous Growth Hormone Releasing Hormone (GHRH), with four strategic substitutions (D-Ala² for…

**Live lowest price:** $29.00 across 6 vendors

[Full CJC-1295 (Mod GRF 1-29) profile](/compound/cjc-1295)

## Ipamorelin

Ipamorelin is a selective pentapeptide ghrelin receptor (GHS-R1a) agonist — one of the most studied growth hormone secretagogues (GHS) in the biohacking community and the modern companion to CJC-1295 / MOD-GRF 1-29. Its…

**Live lowest price:** $24.99 across 5 vendors

[Full Ipamorelin profile](/compound/ipamorelin)

## Side-by-side comparison

Attribute

CJC-1295 (Mod GRF 1-29)

Ipamorelin

Category 

Growth Hormone / IGF-1 Axis

Growth Hormone / IGF-1 Axis

Research Stage 

Phase 2 (clinical development discontinued)

Phase 2

Mechanism of Action 

MOD-GRF 1-29 exerts its effect through a single, well-characterized receptor: the GHRH receptor (GHRHR) on anterior-pituitary somatotroph cells. The signaling cascade is the same as endogenous GHRH; the difference is pharmacokinetics. 1. GHRH receptor agonism…

Ipamorelin acts as a selective agonist at the growth hormone secretagogue receptor 1a (GHS-R1a), the same receptor activated by endogenous ghrelin - the "hunger hormone" secreted primarily by P/D1 cells in the gastric fundus. The distinguishing feature of…

Half-Life 

~30 minutes (without DAC / MOD-GRF 1-29); ~6-8 days (with DAC, due to covalent albumin binding)

~2 hours (plasma)

Typical Dose Range 

Without DAC: 100-300 mcg subcutaneous 1-3x daily (typically pre-bedtime); With DAC: 1000-2000 mcg subcutaneous once weekly

100-300 mcg subcutaneous 1-3x daily (most commonly 200-300 mcg pre-bedtime); often combined with CJC-1295 without DAC at 100-300 mcg

Dosing Frequency 

1–3 times daily, typically before bed and/or upon waking

1–3 times daily; most commonly once at bedtime

Administration 

Subcutaneous

subcutaneous, intravenous (clinical only)

Side Effects 

Expected / benign - Injection-site reaction — mild redness, itching, small bump; 24-48 hour resolution - Facial flushing / warmth 15-30 min post-injection (histamine release from GHRH action); typically diminishes after week 1-2 - Mild nausea in first week at…

Ipamorelin has the cleanest side-effect profile of any ghrelin-receptor agonist, which is why it dominates modern biohacking protocols. The profile is driven by (a) selective GHS-R1a agonism without cross-receptor activity, and (b) acute GH elevation (the same…

Molecular Weight 

3367.9 Da

711.9 Da

Common Vial Sizes 

2mg, 5mg

2mg, 5mg

## Price History

2 data points 

-   VANDL Labs 
-   Ion Peptide 

## Price History

4 data points 

-   OF 
-   VANDL Labs 
-   Ion Peptide 
-   Disguised Alpha 

### CJC-1295 (Mod GRF 1-29) — potential benefits

-   Preserves physiologic pulsatile GH secretion 
-   Stimulates endogenous GH release (2-5x baseline per pulse) 
-   3-5x greater GH response when stacked with ipamorelin 
-   Modest IGF-1 elevation (1.5-2x baseline) 
-   Improved sleep depth and architecture 
-   Enhanced recovery from exercise and injury 
-   Body composition improvements (lean mass preservation, modest fat loss) 
-   Lower desensitization risk vs CJC-1295 with DAC 

### Ipamorelin — potential benefits

-   Increased GH pulse amplitude (selective somatotroph activation) 
-   Elevated IGF-1 (~30-80% over baseline) with consistent dosing 
-   Improved slow-wave sleep architecture 
-   No cortisol / prolactin / ACTH elevation (unique among GHS peptides) 
-   Accelerated connective tissue and wound repair 
-   Modest lean body mass gain + fat loss in hypogonadal adults 
-   Enhanced recovery between training sessions 
-   Synergistic effect with CJC-1295 / MOD-GRF 1-29 

In-depth comparison

## CJC-1295 (Mod GRF 1-29) vs Ipamorelin: the long answer

CJC-1295 is a GHRH analog — it primes the pituitary to release more GH per pulse. Ipamorelin is a ghrelin-receptor agonist — it triggers the GH pulse itself. They're NOT a 'vs' choice; they're a stack. Pulse amplitude (CJC-1295) × pulse trigger (ipamorelin) produces the largest sustained GH/IGF-1 lift in the secretagogue class. Solo use of either gets you ~50% of stack effect.

Last reviewed: May 18, 2026

### Mechanism — different levers, both needed

CJC-1295 binds the GHRH receptor on the pituitary's somatotroph cells, increasing the AMOUNT of GH released when a release signal arrives. Ipamorelin binds the ghrelin receptor (GHS-R1a) and IS the release signal — it triggers a clean GH pulse with no cortisol or prolactin elevation (unlike older GHRPs). Run CJC-1295 alone and you've amplified a signal nobody's firing. Run ipamorelin alone and you're firing pulses on stock-amplitude somatotrophs. Stack them and the same pulse releases 2-3× more GH.

-   **CJC-1295:** GHRH analog. Increases GH release AMOUNT per pulse. 
-   **Ipamorelin:** Ghrelin-receptor agonist. Triggers the pulse itself. 
-   **Why stack:** Pulse amplitude × pulse trigger = 2-3× larger GH spike than either solo. Same IGF-1 lift, lower total mg dosed. 

### CJC-1295 — DAC vs no-DAC matters

Two versions exist: CJC-1295 with DAC (drug affinity complex) has a 6-8 day half-life — one dose lasts a week, creates sustained GH bleed. CJC-1295 without DAC (sometimes called "modified GRF 1-29" or "Mod GRF") has a 30-minute half-life — must be dosed alongside each ipamorelin shot. For pulsatile-mimicking protocols (closer to natural GH rhythm), use no-DAC. For convenience or longevity-focused continuous-elevation protocols, use DAC. The trade-off: continuous GH elevation may cause receptor desensitization over months; pulsatile preserves sensitivity.

-   **CJC-1295 (no DAC):** Half-life ~30 min. Dose with each ipamorelin shot. Mimics natural pulsatile rhythm. 
-   **CJC-1295 + DAC:** Half-life 6-8 days. Once-weekly. Continuous GH elevation — more convenient, possibly higher desensitization risk. 

### Dosing — the standard stack protocol

Most-published protocol: CJC-1295 no-DAC 100 mcg + ipamorelin 100-300 mcg, both subQ, 2-3× daily. Time at least 90 min after meals (food disrupts the GH pulse). Bedtime dose is canonical — aligns with natural overnight GH peak. Loading phase 4-8 weeks, then maintenance at 1×/day pre-bed for ongoing effect. For DAC variant: CJC-1295 DAC 1-2 mg once weekly + ipamorelin 300 mcg 2-3× daily.

-   **Standard stack (no-DAC):** CJC 100mcg + ipam 100-300mcg, 2-3×/day, subQ, fasted 
-   **DAC variant:** CJC DAC 1-2mg 1×/week + ipam 300mcg 2-3×/day 
-   **Bedtime is non-negotiable:** Aligns with natural overnight GH peak. Skip at your own loss. 

### Safety — clean profile, watch site irritation

Ipamorelin alone has perhaps the cleanest side-effect profile of any GH secretagogue — no cortisol, no prolactin, no appetite spike. CJC-1295 adds modest injection-site irritation (1-2 day red welts) and occasional facial flushing in the first 2 weeks. No published cancer-promotion signals despite long-term use in published Phase 2 trials. Both share the standard GH-axis warnings: not for active malignancy, monitor IGF-1 quarterly at high doses, avoid in active diabetic retinopathy.

-   **Ipamorelin profile:** Cleanest GH secretagogue. No cortisol/prolactin elevation. 
-   **CJC-1295 side effects:** Injection-site welts (1-2 day), occasional facial flushing weeks 1-2. Both fade. 
-   **Monitor at high doses:** IGF-1 quarterly if running stack >6 months at high dose. Standard GH-axis caution applies. 

### Cost — both cheap research-use

Research-use CJC-1295 no-DAC ~$15-30/5mg vial → ~$3-6/week at 100mcg 3×/day. CJC-1295 DAC ~$25-50/2mg vial → ~$10-25/week. Ipamorelin ~$20-40/5mg vial → ~$3-7/week at 300mcg 3×/day. Full stack: $6-30/week depending on DAC choice + dosing intensity. Compared to recombinant GH ($300-500/month), the stack is 50-100× cheaper for similar IGF-1 lift.

-   **CJC-1295 no-DAC cost:** $15-30/5mg vial → $3-6/week 
-   **CJC-1295 DAC cost:** $25-50/2mg vial → $10-25/week 
-   **Ipamorelin cost:** $20-40/5mg vial → $3-7/week 
-   **Full stack vs HGH:** Stack: $6-30/week. Recombinant HGH: $300-500/month. 50-100× cheaper for similar IGF-1. 

### Who runs which

Run ipamorelin alone if you just want sleep quality + modest recovery + zero injection-site issues. Run CJC-1295 alone — don't, it's wasteful. Run the stack if you want maximum IGF-1 lift, body recomposition support, or are targeting GH-deficient symptoms (low energy, slow recovery, sleep fragmentation in older users). DAC variant for convenience + budget. No-DAC for purist pulsatile-mimicking protocols.

-   **Solo ipamorelin:** Sleep + modest recovery, lowest cost, simplest 
-   **Solo CJC-1295:** Wasteful — no signal to amplify. Don't 
-   **Stack (preferred):** Max IGF-1 lift. Choose DAC for convenience or no-DAC for pulse fidelity 

## Frequently asked

### What's the difference between CJC-1295 (Mod GRF 1-29) and Ipamorelin?

CJC-1295 (Mod GRF 1-29) is a growth hormone / igf-1 axis that mod-grf 1-29 exerts its effect through a single, well-characterized receptor: the ghrh receptor (ghrhr) on anterior-pituitary somatotroph cells. the signaling cascade is the same…. Ipamorelin is a growth hormone / igf-1 axis that ipamorelin acts as a selective agonist at the growth hormone secretagogue receptor 1a (ghs-r1a), the same receptor activated by endogenous ghrelin - the "hunger hormone" secreted…. The two differ in mechanism, half-life (~30 minutes (without DAC / MOD-GRF 1-29); ~6-8 days (with DAC, due to covalent albumin binding) vs ~2 hours (plasma)), and typical dose range.

### Which has the longer half-life, CJC-1295 (Mod GRF 1-29) or Ipamorelin?

CJC-1295 (Mod GRF 1-29) has a half-life of ~30 minutes (without DAC / MOD-GRF 1-29); ~6-8 days (with DAC, due to covalent albumin binding). Ipamorelin has a half-life of ~2 hours (plasma). Longer half-lives generally mean less frequent dosing but slower on/off kinetics.

### Which is cheaper, CJC-1295 (Mod GRF 1-29) or Ipamorelin?

Current lowest live price on BodyHackGuide: CJC-1295 (Mod GRF 1-29) from $29.00, Ipamorelin from $24.99. Prices are pulled from the vendor listings tracked on BHG and change frequently — see the compare tables on each compound page for the current set of offers.

### Can you stack CJC-1295 (Mod GRF 1-29) and Ipamorelin?

Stacking depends on mechanism overlap, safety profile, and goals. CJC-1295 (Mod GRF 1-29) and Ipamorelin should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds.

### Should I take CJC-1295 with or without DAC?

No-DAC for pulsatile mimicking and convenience-flexible dosers. DAC for once-weekly convenience and continuous GH elevation. No-DAC is the purist choice — it matches the natural overnight GH peak when timed with bedtime ipamorelin. DAC is fine for users who don't want to dose 2-3× daily.

### Can I run CJC-1295 alone?

You can, but it's mostly wasted. CJC-1295 amplifies GH release per pulse — it doesn't trigger pulses. Without ipamorelin (or another ghrelin agonist like MK-677), you're just increasing the amplitude of GH pulses your body already releases naturally. The stack with ipamorelin produces 2-3× the IGF-1 lift of CJC-1295 alone.

### How long does it take to see results from CJC-1295 + ipamorelin?

Sleep quality improves within 3-5 days (most users notice deeper sleep, better dreams). Body composition + recovery effects show in 4-6 weeks. Full IGF-1 elevation peaks around week 8 of consistent dosing. Most users run the stack in 12-week cycles with 4-week breaks.

### Do I need to cycle CJC-1295 + ipamorelin?

Cycling isn't strictly required but recommended. Standard pattern: 12 weeks on, 4 weeks off, repeat. The receptor sensitivity argument for cycling is stronger for continuous-elevation protocols (DAC variant). Pulsatile protocols (no-DAC) preserve sensitivity better and may not need breaks.

### Can I add MK-677 to a CJC-1295 + ipamorelin stack?

Technically yes — MK-677 is also a ghrelin-receptor agonist but works orally with 24-hour half-life. Stacking it with ipamorelin adds receptor saturation without proportional benefit. Better: pick one ghrelin pathway. MK-677 + CJC-1295 (no ipamorelin) is a clean oral + injectable hybrid. Or stick with ipamorelin + CJC-1295 for the purist injectable stack.

### What's the difference between Ipamorelin + CJC-1295 stack and Sermorelin?

Sermorelin is just GHRH (1-29 fragment) — basically a less-engineered version of CJC-1295 no-DAC. Stacking sermorelin with ipamorelin works but you're getting less amplitude lift per mg than with CJC-1295. CJC-1295 no-DAC superseded sermorelin in most published protocols around 2015-2018.

## See current vendor prices

Live listings from the vendors we track, refreshed continuously.

[CJC-1295 (Mod GRF 1-29) prices](/compound/cjc-1295?tab=prices) [Ipamorelin prices](/compound/ipamorelin?tab=prices) [Compare all compounds](/compare)

### Before you buy CJC-1295 (Mod GRF 1-29) or Ipamorelin

Check the vendor trust score. Every supplier we track is rated 0–100 on COA verification, payment transparency, shipping, reviews, and listings — one published, reproducible methodology, applied to every vendor including BHG Labs, which shares our ownership.

[View Vendor Scorecard](/vendors/scorecard)

## Related comparisons

[Ipamorelin vs MK-677](/compare/ipamorelin-vs-mk-677)[Tesamorelin vs CJC-1295](/compare/tesamorelin-vs-cjc-1295)[Sermorelin vs Ipamorelin](/compare/sermorelin-vs-ipamorelin)[MK-677 vs CJC-1295](/compare/mk-677-vs-cjc-1295)[Hexarelin vs Ipamorelin](/compare/hexarelin-vs-ipamorelin)[IGF-1-LR3 vs Ipamorelin](/compare/igf-1-lr3-vs-ipamorelin)[CJC-1295-Dac vs CJC-1295](/compare/cjc-1295-dac-vs-cjc-1295)[GHRP-2 vs Ipamorelin](/compare/ghrp-2-vs-ipamorelin)

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### BodyHackGuide

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