CJC-1295 (No DAC) vs Tesamorelin
A modified growth hormone-releasing hormone that boosts your body's natural GH pulses for better recovery, deeper sleep, and improved body composition [13] [17].
The only FDA-approved peptide specifically designed to melt away stubborn belly fat by telling your brain to release more growth hormone naturally—working with your body's own systems rather than replacing them [6].
Written by Michael Carroll — Owner, Director of Research · Reviewed by the Peptide Initiative Research Team · Editorial standards
Quick comparison
Dose range
CJC-1295 (No DAC)
100–100 mcg
Tesamorelin
2–2 mg
Frequency
CJC-1295 (No DAC)
Once daily
Tesamorelin
Once daily
Administration
CJC-1295 (No DAC)
Subcutaneous injection
Tesamorelin
Subcutaneous injection
Cycle length
CJC-1295 (No DAC)
8-12 weeks
Tesamorelin
12+ weeks
Onset speed
CJC-1295 (No DAC)
Moderate (1-2 weeks)
Tesamorelin
Moderate (1-2 weeks)
Evidence level
CJC-1295 (No DAC)
Moderate human trials (Phase 1-2)
Tesamorelin
Strong human trials (Phase 3 or FDA approved)
Benefit ratings
GH Stimulation
Sleep Quality
Recovery Support
Visceral Fat Reduction
Metabolic Health
Natural GH Boost
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
Tesamorelin
Molecular formula
C221H366N72O67S
Molecular weight
5135.86 g/mol
Half-life
26-38 minutes
Bioavailability
~100% (subcutaneous injection)
CAS number
218949-48-5
Dosing compared
CJC-1295 (No DAC)
Subcutaneous
100 mcg
Once daily, 30 minutes before bed · 2-4 weeks
A common starting dose used in research practice. Because the no-DAC form is short-acting (about 30 minute half-life), it is injected on an empty stomach for the best growth-hormone pulse. [14][15]
100 mcg per dose
1-2 times daily · 8-12 weeks
The typical maintenance dose used in practice, often given before bed and/or after fasted exercise. Frequently paired with a GH-releasing peptide.
100 mcg per dose
2-3 times daily · 8-12 weeks
A higher-frequency plan used by experienced users to mimic natural GH pulses across the day, each dose taken fasted.
Tesamorelin
Subcutaneous
2 mg (1.4 mg with Egrifta SV/WR F8 formulation)
Once daily · 26 weeks, continued long-term for sustained effect
FDA-approved dose for HIV-associated lipodystrophy; full dose from day one with no titration [6]. Pivotal phase 3 trials used 2 mg daily [1].
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 [2].
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 [17] [18].
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 [12] [13].
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 [16] [17] [20].
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 [9].
Tesamorelin
People with Stubborn Visceral Fat
If you carry your weight around your midsection—the deep belly fat that wraps around your organs—tesamorelin is specifically designed for you. Unlike weight loss drugs, it targets visceral fat while preserving the normal subcutaneous fat that's healthy to have [5].
HIV Patients with Lipodystrophy
Tesamorelin is FDA-approved specifically for HIV-associated lipodystrophy—the abnormal fat accumulation in the belly that antiretroviral medications can cause [6]. It's the only treatment proven to help this condition, reducing both the physical and psychological burden [1][5].
Those Concerned About Metabolic Health
Visceral fat isn't just cosmetic—it's metabolically dangerous, linked to heart disease, diabetes, and inflammation [10][12]. By reducing visceral fat, tesamorelin also improves triglycerides, cholesterol ratios, and may help protect your liver from fatty liver disease [1][2][4].
Adults Wanting Natural GH Stimulation
Unlike synthetic growth hormone injections, tesamorelin works WITH your body's natural systems. It tells your pituitary to release more of YOUR OWN growth hormone, maintaining normal feedback loops and reducing the risks associated with supraphysiological GH levels [10].
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
Tesamorelin
Common
- Injection site reactions
- Joint pain (arthralgia)
- Muscle pain (myalgia)
- Peripheral edema
Uncommon
- Carpal tunnel symptoms
- Elevated blood glucose
Serious
- Severe allergic reaction
- Worsening diabetes
Safety & evidence
CJC-1295 (No DAC)
Evidence level
Moderate human trials (Phase 1-2)
FDA status
Research compound
Safety overview
CJC-1295 without DAC itself has not been evaluated in controlled human clinical trials; expectations about its safety are extrapolated from studies of related GHRH analogs. The most common side effects are mild and include injection site reactions and temporary flushing [19]. Because it stimulates natural GH release rather than providing exogenous GH, it maintains the body's feedback mechanisms [2].
Contraindications
- Active cancer or history of cancer
- Pregnancy or breastfeeding
- Pituitary tumors or disorders
- Hypersensitivity to GHRH analogs
- Diabetic retinopathy
Tesamorelin
Evidence level
Strong human trials (Phase 3 or FDA approved)
FDA status
FDA approved for other use
Safety overview
Tesamorelin has a strong safety profile backed by FDA approval and multiple large Phase 3 clinical trials involving over 800 patients [1][6]. The most common issues are injection site reactions and the typical side effects of elevated growth hormone (joint pain, fluid retention) [6]. Glucose metabolism should be monitored as some patients experience increased blood sugar [6]. Long-term cardiovascular safety data is still being collected, which is why the FDA recommends reassessing treatment if visceral fat doesn't reduce [6].
Contraindications
- Active malignancy [6] or history of cancer (pituitary tumors especially)
- Known hypersensitivity to tesamorelin or mannitol [6]
- Pregnancy [6]
- Disruption of the hypothalamic-pituitary axis from conditions like hypophysectomy or pituitary tumor surgery [6]
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 Tesamorelin if...
- Reducing visceral abdominal fat
- Improving metabolic health markers
- Supporting natural growth hormone production
- Addressing HIV-associated lipodystrophy