CJC-1295 with DAC

A long-acting growth hormone peptide for fat loss, lean muscle, and anti-aging. CJC-1295 with DAC (Drug Affinity Complex) is a long-acting GHRH analog that binds to albumin, extending its half-life to 6-8 days. This allows for less frequent dosing compared to CJC-1295 without DAC, providing sustained GH elevation rather than pulsatile release.

CategoryGrowth & Repair Peptides

GoalMuscle Growth

Key Characteristics

Length: 30 amino acids
(Modified GRF(1-29) + DAC.)
Half-life: 6-8 days
(vs. 30 min for CJC-1295 no DAC.)
Mechanism: GHRH agonist
(Sustained GH elevation.)
Dosing: 1-2x weekly
(Less frequent than no-DAC version.)

Key modification

Lysine-linked maleimidopropionic acid (MPA) for albumin binding

The DAC modification creates a covalent bond with albumin, providing sustained GH elevation rather than pulsatile release. Better for steady-state GH but less physiological.

Key takeaway: CJC-1295 with DAC provides sustained GH elevation with less frequent dosing, but the non-pulsatile release pattern differs from natural GH secretion.

Overview

Core Benefits

Key Advantages

Lean muscle support

Discussed alongside resistance training to aid strength and muscle preservation.

Body recomposition

Paired with nutrition plans to address stubborn fat and physique balance.

Recovery cadence

Reported to help reduce downtime between sessions and support joint comfort.

Sleep depth

Often noted for supporting deeper sleep cycles and overnight recovery.

Vitality narratives

Skin, energy, and cognitive focus described anecdotally in wellness settings.

Stack compatibility

Commonly paired with ipamorelin to engage complementary GH pathways.

These are educational summaries of commonly discussed effects in wellness/regenerative contexts, not guarantees.

CJC-1295 with DAC Results Timeline

Progression

Phase

Physical Changes

Performance & Recovery

Other Benefits

Week 1–2

Early fat mobilization, muscle fullness

Noticeably better sleep, faster post-workout recovery

Increased energy, improved mood

Week 3–6

Visible fat reduction (especially belly), increased muscle definition

Greater workout endurance, reduced soreness

Healthier skin tone, sharper mental focus

Month 2–4

Significant lean muscle gain, accelerated fat loss

Stronger recovery, noticeable strength gains

Anti-aging effects: skin elasticity, hair quality, sustained energy

4+ Months

Major body recomposition — lower fat % + more muscle

Peak recovery, ability to train harder and more frequently

Cumulative benefits with continued cycling (8 weeks on/off) or extended use

Week 1–2

Physical Changes

Early fat mobilization, muscle fullness

Performance & Recovery

Noticeably better sleep, faster post-workout recovery

Other Benefits

Increased energy, improved mood

Week 3–6

Physical Changes

Visible fat reduction (especially belly), increased muscle definition

Performance & Recovery

Greater workout endurance, reduced soreness

Other Benefits

Healthier skin tone, sharper mental focus

Month 2–4

Physical Changes

Significant lean muscle gain, accelerated fat loss

Performance & Recovery

Stronger recovery, noticeable strength gains

Other Benefits

Anti-aging effects: skin elasticity, hair quality, sustained energy

4+ Months

Physical Changes

Major body recomposition — lower fat % + more muscle

Performance & Recovery

Peak recovery, ability to train harder and more frequently

Other Benefits

Cumulative benefits with continued cycling (8 weeks on/off) or extended use

Timeline is illustrative and non-guaranteed. Outcomes vary and are commonly discussed alongside training, nutrition, sleep, and cycling practices.

How It WorksGHRH Analog — Long-Acting (Drug Affinity Complex)

Sequence → Stability → GH Pattern → Outcomes

Target

GHRH Receptor on Pituitary Somatotrophs

Same receptor as CJC-1295 (no DAC), Sermorelin, and Tesamorelin. The critical difference is duration of action — the DAC modification causes the peptide to bind albumin in the blood, keeping it active for 6-8 days.

Cellular Signal

Sustained cAMP/PKA Activation → Continuous GH Elevation

Rather than triggering discrete GH pulses, the long half-life creates sustained GH elevation(sometimes called "GH bleed"). The pituitary is continuously stimulated rather than pulsed, which differs from natural GH secretion patterns.

Systemic Effect

Steady GH/IGF-1 Elevation → Consistent Anabolic Signal

Sustained GH leads to consistently elevated IGF-1 levels. This provides a more constant anabolic environment but lacks the peaks and troughs of natural pulsatile release. Some researchers believe pulsatile patterns are more physiologically effective.

What You Notice

Convenience + Steady-State Effects

Weekly dosing convenience is the primary advantage. Effects are similar to other GHRH analogs — sleep, recovery, body composition — but the sustained release pattern may produce different quality of results compared to pulsatile versions. Water retention is more common.

What Makes This Peptide Different

CJC-1295 with DAC is the same modified GRF(1-29) base as CJC-1295 (no DAC), but with a Drug Affinity Complexthat covalently binds to serum albumin. This extends the half-life from ~30 minutes to 6-8 days. The tradeoff: convenience (1-2 injections per week) vs. non-pulsatile GH elevation that doesn't mimic natural patterns. Many prefer the no-DAC version for physiological reasons despite the daily dosing requirement.

GHRH Peptide Comparison

Peptide	Half-Life	GH Pattern	What's Unique
CJC-1295 (no DAC)	~30 min	Natural pulsatile	Pulsatile release — more physiological, requires daily dosing
CJC-1295 (DAC)	6-8 days	Sustained elevation	Albumin binding — weekly dosing, non-pulsatile "GH bleed"
Sermorelin	~10-20 min	Brief natural pulse	Native GHRH(1-29) — most natural, least stable
Tesamorelin	~26-38 min	Reliable pulse	Full 44-AA — FDA-approved for visceral fat reduction

CJC-1295 with DAC Vendors

COA

Swiss Chems

Score

10/10

Price

$47.95

Amount

2mg

Cost/mg

$23.98/mg

Ships Worldwide

View at Swiss Chems

COA

Penguin Peptides

Score

9.6/10

Price

$57.00

Amount

5mg

Cost/mg

$11.40/mg

View at Penguin Peptides

Dosing ProtocolGrowth Hormone / Longevity

Educational reference only. Individual responses vary. Consult healthcare provider before use.

Vial Size

2 mg

Reconstitution

2 ml BAC water

Dose

1-2 mg (once or twice weekly)

Timing

Frequency

1-2x per week

Duration

8 weeks on, 8 weeks off

Protocol Notes

Long half-life (6-8 days) means less frequent dosing. Provides sustained rather than pulsatile GH elevation.

Why This Dosing Protocol

Why weekly dosing? The DAC modification extends half-life to 6-8 days. A single injection provides sustained GH elevation throughout the week — no need for daily dosing.

Why some prefer no-DAC instead:The sustained GH elevation ("GH bleed") doesn't mimic natural pulsatile patterns. Some researchers believe the peaks and troughs of pulsatile release are more effective for fat loss and recovery. DAC trades physiological signaling for dosing convenience.

Full Dosing Guide Reconstitution Calculator Cycle Cost Calculator

Popular Stack Protocols1 stack

Commonly paired protocols from the peptide research community. Educational reference only.

CJC-1295 DAC + Ipamorelin

Growth Hormone / Sustained Release

CJC-1295 DAC

Dose

1–2 mg

Vial Size

2 mg

Reconstitution

2 ml BAC water

Ipamorelin

Dose

300 mcg

Vial Size

10 mg

Reconstitution

3 ml BAC water

Timing

CJC DAC: 1–2x per week (PM). Ipamorelin: AM/PM daily.

Frequency

CJC DAC weekly + Ipamorelin 5 on / 2 off

Duration

8 weeks on, 8 weeks off

DAC version provides sustained GH elevation (6–8 day half-life) vs pulsatile release from no-DAC. Ipamorelin daily pulses ride on top of the elevated baseline. Less convenient injection schedule for CJC but more stable GH levels overall. Some prefer no-DAC for more natural pulsatile pattern.

Diagrams

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Body highlight diagram

CJC-1295 with DAC simplified GH → IGF-1 pathway diagram (educational)

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Simplified pathway diagram

Reconstitution Calculator

Dilution math and unit conversions. Prefilled using a common vial size for this peptide.

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Educational Videos

CJC-1295 with Dac vs no Dac

CJC-1295 with Dac Dosage

CJC-1295 with Dac Reconstitue

Handling

Educational overview on storage, labeling, and traceability considerations for lab environments. Consult primary literature and vendor documentation for specifics.

Powder Storage (Very Stable)

Freezer (-20°C): 1+ year
Refrigerator (2-8°C): 1-3 months
Room temperature: 2-3 weeks (emergency only)

Reconstituted Storage (Fragile)

MUST refrigerate at 2-8°C
4-week maximum shelf life
NEVER freeze after reconstitution
Use bacteriostatic water for multi-dose

Storage & Handling Guide

Learn proper storage temperatures, shelf life timelines, reconstitution best practices, and travel tips for lyophilized and reconstituted peptides.

Powder: Freezer

1+ year at -20°C

Reconstituted: Fridge

4 weeks max at 2-8°C

View Complete Storage Guide

FAQ

What are the most common side effects?

Most peptides cause mild injection site reactions, temporary water retention, and possible joint discomfort. CJC-1295 with DAC has minimal impact on cortisol and prolactin levels compared to other GH peptides.

Why do people stack CJC-1295 with Ipamorelin?

This combination works synergistically—CJC-1295 (GHRH pathway) increases the number of cells releasing GH, while Ipamorelin (GHRP pathway) increases GH release per cell. Together they produce stronger results with minimal side effects.

What is DAC and why does it matter?

DAC (Drug Affinity Complex) is a modification that allows CJC-1295 to bind to albumin in the blood. This extends the half-life from ~30 minutes to 6-8 days, meaning weekly injections instead of daily. The tradeoff is that it creates sustained GH elevation rather than natural pulsatile release.

Is CJC-1295 with DAC better than without DAC?

Neither is objectively "better" — they have different use cases. DAC version offers convenience (1-2 injections per week) but causes sustained GH elevation. No-DAC version requires daily dosing but produces more natural pulsatile GH patterns. Many prefer no-DAC for physiological reasons; DAC for simplicity.

What is the typical CJC-1295 DAC dosage?

Common research dosages range from 1-2 mg per week, often as a single weekly injection or split into two doses. Due to the long half-life, more frequent dosing isn't necessary. Some use it with a GHRP like Ipamorelin on non-injection days to add pulsatile release.

Does CJC-1295 DAC cause GH bleed?

Yes, the sustained release creates what's called "GH bleed" — consistently elevated GH rather than natural spikes. Some researchers believe pulsatile release is healthier and more effective. This is a key reason some prefer the no-DAC version despite the inconvenience of daily dosing.

What benefits does CJC-1295 DAC provide?

By elevating GH and IGF-1 levels, CJC-1295 DAC may support fat loss, muscle growth, improved sleep, faster recovery, and anti-aging effects. The sustained release may be particularly effective for consistent IGF-1 elevation. Results develop over weeks to months.

Can CJC-1295 DAC be combined with GHRPs?

Yes, many combine weekly CJC-1295 DAC with daily GHRP injections (like Ipamorelin). This provides baseline sustained GH elevation from the DAC plus natural pulsatile spikes from the GHRP. This approach tries to get benefits of both release patterns.

How long does reconstituted peptide last?

Once mixed with bacteriostatic water, peptides remain stable for up to 4 weeks when refrigerated at 2-8°C (36-46°F). Unopened powder can last 1+ year in the freezer. Get our complete Storage & Travel Guide.

Is this peptide legal to purchase?

Peptides sold "for research purposes only" are legal to purchase in the US, but are not FDA-approved for human use outside of specific medical applications. Always consult a healthcare provider before use.

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