Peptide Comparison
CJC-1295 (No DAC)vsGHRH (1-29)
A modified growth hormone-releasing hormone that boosts your body's natural GH pulses for better recovery, deeper sleep, and improved body composition.
The shortest synthetic growth hormone-releasing peptide that tells your body to build taller and stronger.
At a Glance
Quick
comparison
Dose Range
CJC-1295 (No DAC)
100–100 mcg
GHRH (1-29)
200–300 mcg
Frequency
CJC-1295 (No DAC)
Once daily
GHRH (1-29)
Once daily
Administration
CJC-1295 (No DAC)
Subcutaneous injection
GHRH (1-29)
Subcutaneous injection
Cycle Length
CJC-1295 (No DAC)
8-12 weeks
GHRH (1-29)
8-12 weeks
Onset Speed
CJC-1295 (No DAC)
Moderate (1-2 weeks)
GHRH (1-29)
Moderate (1-2 weeks)
Evidence Level
CJC-1295 (No DAC)
Moderate human trials (Phase 1-2)
GHRH (1-29)
Strong human trials (Phase 3 or FDA approved)
Efficacy
Benefit
ratings
GH Stimulation
Sleep Quality
Recovery Support
Growth and Development
Body Composition
Performance and Recovery
Technical Data
Compound
specifications
CJC-1295 (No DAC)
Molecular Formula
C152H252N44O42
Molecular Weight
3367.9 g/mol
Half-Life
30 minutes to 2 hours
Bioavailability
~100% (subcutaneous)
CAS Number
863288-34-0
GHRH (1-29)
Molecular Formula
C149H246N44O42S
Molecular Weight
3357.9 g/mol
Half-Life
~10-20 minutes
Bioavailability
Subcutaneous: moderate; Intranasal: 3-5%
CAS Number
86168-78-7
Protocols
Dosing
tiers
CJC-1295 (No DAC)
GHRH (1-29)
Applications
Best
suited for
CJC-1295 (No DAC)
Natural Growth Hormone Optimization
Perfect for those wanting to boost their body's own GH production rather than using synthetic growth hormone. Mimics the natural pulsatile release pattern your pituitary uses.
Workout Recovery and Muscle Building
Athletes and fitness enthusiasts use it to accelerate recovery between training sessions, support lean muscle development, and reduce body fat over time.
Sleep Quality Enhancement
Because GH is naturally released during deep sleep, many users report dramatically improved sleep quality with more vivid dreams and feeling more refreshed upon waking.
Anti-Aging and Vitality
As GH levels decline with age, CJC-1295 helps restore more youthful hormone patterns, potentially improving skin quality, energy levels, and overall well-being.
Synergistic Peptide Stacking
Designed to work hand-in-hand with GHRPs like Ipamorelin. When combined, these peptides amplify each other's effects for significantly greater GH release than either alone.
GHRH (1-29)
Helping Kids Catch Up in Height
Children diagnosed with growth hormone deficiency struggle to reach normal heights. GHRH (1-29) works by sending a signal to the pituitary gland that says 'make more growth hormone.' Studies show children getting daily 30 mcg/kg doses at bedtime experienced sustained improvements in height velocity over 12+ months. It's gentle and lets the body do the work naturally.
Testing for Growth Problems
Doctors need a safe, accurate way to figure out if someone has a growth hormone deficiency. Giving a small dose of GHRH (1-29) and measuring the growth hormone response is fast and specific. It's like asking your pituitary gland 'can you produce growth hormone?' and listening to the answer.
Natural Optimization for Adults
Some adults have lower-than-optimal growth hormone levels as they age. GHRH (1-29) stimulates the body's own hormone factories rather than replacing hormones artificially. This approach keeps your body's natural feedback loops working properly.
Safety Profile
Side
effects
CJC-1295 (No DAC)
Common
- Injection site reactions
- Flushing or warmth
- Water retention
- Increased appetite
Uncommon
- Tingling or numbness
- Headache
Serious
- Allergic reaction
GHRH (1-29)
Common
- Facial flushing
- Injection site discomfort
- Mild dizziness
Uncommon
- Nausea
- Headache
- Local allergic reaction
Serious
- Cardiovascular complications
Research Status
Safety
& evidence
CJC-1295 (No DAC)
Evidence Level
Moderate human trials (Phase 1-2)
FDA Status
Research compound
Safety Overview
CJC-1295 without DAC has been studied in Phase 1-2 human clinical trials with a favorable safety profile. The most common side effects are mild and include injection site reactions and temporary flushing. Because it stimulates natural GH release rather than providing exogenous GH, it maintains the body's feedback mechanisms.
Contraindications
- xActive cancer or history of cancer
- xPregnancy or breastfeeding
- xPituitary tumors or disorders
- xHypersensitivity to GHRH analogs
- xDiabetic retinopathy
GHRH (1-29)
Evidence Level
Strong human trials (Phase 3 or FDA approved)
FDA Status
FDA approved for this use
Safety Overview
GHRH (1-29) has been studied extensively in both children and adults. It works by mimicking a natural hormone your body already produces, making it relatively gentle. Side effects are typically mild and temporary, mainly limited to facial flushing and minor injection site reactions. Long-term studies show it's well-tolerated when used as directed.
Contraindications
- xActive malignancy or recent cancer diagnosis
- xAcute critical illness or severe infection
- xKnown hypersensitivity to sermorelin or any component
Decision Guide
Which is
right for you?
Choose CJC-1295 (No DAC) if...
- Increasing natural growth hormone levels
- Building lean muscle mass
- Improving sleep quality
- Enhancing workout recovery
Choose GHRH (1-29) if...
- Children with growth hormone deficiency who need to catch up in height
- Adults seeking to optimize natural growth hormone levels
- People being tested for growth hormone deficiency