How to Reconstitute Peptides
Step-by-step guide to reconstituting muscle growth peptides with proper mixing ratios.
📋
Muscle Growth Peptides
Comprehensive guide to growth hormone secretagogues. Learn about Ipamorelin, CJC-1295, GHRP-6 and other muscle growth peptides for research and performance.
Important context: Most growth-hormone secretagogues discussed below (CJC-1295, Ipamorelin, GHRP-6, Sermorelin) are not FDA approved for muscle-growth indications. Tesamorelin is the only FDA-approved peptide in this class — branded as Egrifta / Egrifta SV / Egrifta WR by Theratechnologies, approved for HIV-associated lipodystrophy, and a prescription drug. The published clinical evidence for muscle-growth outcomes from the secretagogue class is modest in adults; controlled trials generally show small lean-mass changes, not the dramatic gains seen in community anecdotes. GH-axis stimulation can elevate IGF-1, fasting glucose, and induce edema/carpal-tunnel-type symptoms — risks that are well documented for tesamorelin and rhGH and apply across the class.
Popular Muscle Growth Peptides
Best vendor for CJC-1295 / Ipamorelin (no DAC) right now: Amino Club
10mg vial, $59.99 per vial ($6.00 per mg), list price checked 2026-09-08. The vendor Bureau readers order from most this year, lowest price per mg on most of what we track, batch COA on every product page. Partner code 100 at checkout takes 20% off a first order there, and keeps the order counted for the Bureau. Research use only.
Check price at Amino Club Compare all vendorsIpamorelin
Most PopularMechanism: Ghrelin receptor agonist that stimulates growth hormone release from the pituitary gland. Selective action with minimal side effects.
Research Use: Growth hormone stimulation, muscle growth support, fat loss, improved body composition, joint and bone health.
Typical Dosing: 200-300mcg daily, usually given as subcutaneous injection in evening or pre-workout.
Key Benefits:
- Stimulates natural growth hormone release
- Minimal side effects compared to alternatives
- Can be used long-term
- Selective ghrelin agonist action
- Improves body composition
Widely available from all major vendors. Good COA support. Expect $80-200 for 10mg vial.
CJC-1295
PopularMechanism: CJC-1295 is a GHRH (growth hormone releasing hormone) analog. The non-DAC version (Mod GRF 1-29) amplifies natural GH pulses for roughly 30 minutes. The DAC version has a multi-day half-life and produces sustained elevation of mean GH and IGF-1 — but published clinical data (Teichman 2006) showed this came at the cost of blunted GH pulsatility, not durably "raised baseline" GH in a physiologic sense.
Research Use: Growth hormone stimulation, muscle building, anti-aging effects, improved recovery, body composition.
Typical Dosing: 100-300mcg, typically 2-3 times per week. Can be used daily or as part of stack with other GH secretagogues.
Key Benefits:
- Potent growth hormone stimulation
- DAC version sustains elevated GH/IGF-1; non-DAC version amplifies pulses
- Works well in combination with other peptides
- Multiple dosing frequency options
Available from major vendors. Good availability. Expect $100-250 for 2mg vial.
GHRP-6
EffectiveMechanism: Growth hormone releasing peptide. More potent ghrelin receptor agonist than Ipamorelin. Increases appetite as side effect.
Research Use: Potent growth hormone stimulation, muscle growth, joint health, improved recovery from training.
Typical Dosing: 100-300mcg daily, typically 1-3 times per day depending on protocol.
Key Benefits:
- Very potent growth hormone release
- Increased appetite (good for bulking)
- Synergizes with other peptides
- Multiple dosing options
Good availability from most vendors. Cost $100-200 for 5mg vial. May need more frequent dosing.
Other Growth Peptides
AlternativesInclude: GHRP-2, GHRP-3, Sermorelin, and other growth hormone secretagogues with various mechanisms.
Research Use: Growth hormone stimulation, muscle building, anti-aging, recovery support with varying potencies and effects.
Typical Dosing: Varies by specific peptide. Generally 100-300mcg depending on compound.
Considerations:
- More niche than top 3 options
- Variable vendor availability
- Different side effect profiles
Availability depends on specific peptide. Research thoroughly before selecting.
Muscle Growth Peptide Comparison
| Peptide | Potency | Side Effects | Dosing Frequency | Best For | Cost |
|---|---|---|---|---|---|
| Ipamorelin | Moderate | Minimal | Daily | Long-term use, low side effects | $$ |
| CJC-1295 | High | Minimal | 2-3x weekly | Potent GH stimulation | $$ |
| GHRP-6 | Very High | Appetite increase | 1-3x daily | Bulking, maximum GH | $$ |
| CJC + Ipamorelin Stack | Synergistic | Minimal | Daily/2-3x weekly | Best results, balanced | $$$ |
| GHRP-6 + CJC-1295 Stack | Maximum | Appetite increase | Frequent dosing | Aggressive muscle building | $$$ |
Growth Peptide Protocols
Ipamorelin Standalone Protocol
- Dosing: 200-300mcg daily
- Timing: Evening or 30 minutes pre-workout
- Administration: Subcutaneous injection
- Duration: 8-12 weeks minimum, can run longer
- Benefits: Minimal side effects, sustainable long-term use
CJC-1295 Standalone Protocol
- Dosing: 100-300mcg per injection
- Frequency: 2-3 times per week (e.g., Monday/Wednesday/Friday)
- Administration: Subcutaneous or intramuscular
- Duration: 8-12 weeks minimum
- Benefits: Potent GH stimulation, less frequent dosing
Ipamorelin + CJC-1295 Stack (Most Popular)
- Ipamorelin: 200-300mcg daily (evening or pre-workout)
- CJC-1295: 100-200mcg, 2-3 times per week
- Administration: Both subcutaneous
- Synergistic: Ipamorelin works on ghrelin pathway, CJC on GHRH pathway
- Duration: 8-12 weeks minimum
- Benefits: Amplified growth hormone release, excellent results
GHRP-6 + CJC-1295 Stack (Aggressive)
- GHRP-6: 100-150mcg, 2-3 times daily
- CJC-1295: 100-200mcg, 2-3 times per week
- Timing: Space GHRP-6 doses 4-6 hours apart
- Note: Increased appetite expected (useful for bulking)
- Duration: 8-12 weeks
- Results: Maximum growth hormone stimulation
Important Protocol Information
Pulsatile vs Continuous
Growth peptides work best with pulsatile (intermittent) dosing to mimic natural growth hormone secretion patterns. Continuous exposure can lead to desensitization.
Not sure which of these you actually need?
Answer four questions about your goal, experience and budget and the Stack Builder shows you a matched research protocol on screen, with the compounds, cycle shape and vendor picks from the six vendors we score.
Build your stack, 2 minutesCalculate your draw for any compound on this page
Pick the peptide, enter your vial, water and dose, and get the exact syringe mark plus doses per vial. Twenty-seven compounds, free, no signup.
Open the peptide calculator peptidedosingcalc.com, the Bureau's independent toolThis is why multiple daily doses at intervals work better than one large daily dose.
Timing Matters
Evening dosing (7-10pm) aligns with natural growth hormone peaks during sleep. Pre-workout dosing captures training stimulus synergy.
Avoid dosing immediately after meals (food can blunt GH response).
Side Effects
Ipamorelin: Minimal. CJC-1295: Minimal. GHRP-6: Appetite increase, potential bloating.
All are well-tolerated by most researchers. Start conservative and assess tolerance.
Cycling Recommendations
Run 8-12 weeks on, take 4-8 weeks off to prevent desensitization. Some protocols use 5 days on, 2 days off approach.
Extended cycling helps maintain effectiveness long-term.
Where to Source Muscle Growth Peptides
All major vendors carry muscle growth peptides. Availability and pricing comparison.
Ipamorelin Availability
Available from all 5 vendors. Most popular muscle growth peptide overall.
Price: $80-200 per 10mg vial depending on vendor
Quality: Good COA support from all vendors
CJC-1295 Availability
Available from 4 of 5 major vendors. Very popular for stacking.
Price: $100-250 per 2mg vial
Quality: Excellent COA availability
GHRP-6 Availability
Available from 3 of 5 major vendors. Less common but available.
Price: $100-200 per 5mg vial
Quality: Good COA support where available
Best Vendors for Muscle Growth
Apollo Peptide Sciences: Best selection of growth-hormone secretagogues, excellent COAs, premium pricing.
Pantheon Peptides: Strong value on the CJC-1295 + Ipamorelin stack with wider catalog.
Limitless Life Peptides: Stocks the full GH-axis lineup including CJC-1295, Ipamorelin, Tesamorelin, and IGF-1 LR3.
In depth: Top 10 Peptides for Muscle Growth in 2026: Bureau-Ranked
If you train hard and eat in a small surplus, peptides will not turn you into a different person. They will, however, accelerate the rate at which your body converts food and training stimulus into actual lean tissue. The best of them also improve recovery enough that you can train harder more often, which is where the real compounding effect lives.
This is the Bureau's 2026 ranking of the ten peptides that actually deliver on muscle growth. We weighted by hypertrophy data, recovery support, accessibility, and side effect profile. Anabolic steroids and SARMs are not on this list. This is peptides only.
How We Ranked These Peptides
Three criteria. Mechanism strength on hypertrophy or recovery. Real-world results across long-running peptide communities and clinical trials. Practical accessibility, including price and reliability of supply. Compounds with weak mechanisms but strong field results outranked compounds with elegant mechanisms but no human evidence.
1CJC-1295 + Ipamorelin Stack
This is the gold-standard growth hormone stack and the top pick for most lifters. CJC-1295 extends GHRH half-life. Ipamorelin selectively triggers pulsatile GH release without spiking cortisol or prolactin. Run together, they restore GH levels to those of a 25-year-old in someone in their 40s.
Effect on hypertrophy: 4 to 8 pounds of lean mass over 12 weeks in lifters already training consistently.
Typical protocol: 100mcg of each, five nights per week, before bed. 12-week cycles with 4-week breaks.
Cost: $200 to $250 monthly.
Why it ranks first: Universal applicability, well-tolerated, the most predictable results among all peptides.
2IGF-1 LR3
IGF-1 LR3 is the long-acting analog of insulin-like growth factor 1. While the GH-axis peptides upregulate your own IGF-1, LR3 delivers it directly. It is the most powerful muscle-building peptide on this list, and the most aggressive.
Effect on hypertrophy: 6 to 10 pounds of lean mass over 8 weeks in trained lifters.
Typical protocol: 40 to 80mcg subcutaneous, post-workout, 5 days per week. 4 to 6 week cycles maximum.
Cost: $200 to $350 monthly.
Why it ranks second: Faster and stronger hypertrophy than the GH stack, but receptor downregulation forces shorter cycles and the side effect profile (hypoglycemia risk) is more demanding.
3MK-677 (Ibutamoren)
Technically a non-peptide GH secretagogue, but commonly bundled with peptide protocols and worth ranking here. Oral, once-daily, sustained 24-hour GH and IGF-1 elevation.
Effect on hypertrophy: 3 to 5 pounds of lean mass over 12 weeks, plus significant water retention initially.
Typical protocol: 10 to 25mg orally, once daily before bed. 8 to 16 week cycles.
Cost: $60 to $120 monthly.
Why it ranks third: Oral convenience and sustained 24-hour GH elevation. Downsides include water retention, hunger, and tingling extremities at higher doses.
4Tesamorelin
Tesamorelin is a GHRH analog with the strongest sustained GH and IGF-1 elevation among the GH-axis peptides. It is FDA-approved for visceral fat reduction in HIV patients, and lifters use it both for body recomposition and lean mass support.
Effect on hypertrophy: 3 to 6 pounds of lean mass over 12 weeks, with notable visceral fat loss simultaneously.
Typical protocol: 1 to 2mg subcutaneous nightly. 12-week cycles.
Cost: $300 to $500 monthly.
Why it ranks fourth: Strongest GHRH on the market, with the bonus of visceral fat reduction. Cost holds it back.
5Hexarelin
Hexarelin is the most potent GHRP for raw GH release. It outpaces Ipamorelin and GHRP-6 in pulse magnitude but causes some prolactin and cortisol elevation, which is why it is not the default GHRP recommendation.
Effect on hypertrophy: Comparable to CJC-1295 + Ipamorelin when stacked with a GHRH.
Typical protocol: 100mcg, 2 to 3 times daily, stacked with a GHRH like CJC-1295. 8-week cycles.
Cost: $80 to $120 monthly.
Why it ranks fifth: Strong effect at lower cost than the standard stack, but receptor desensitization happens faster and the prolactin spike requires monitoring.
6Follistatin-344
Follistatin inhibits myostatin, which is the primary natural ceiling on muscle growth. Knock down myostatin signaling and the body grows more muscle than it would otherwise allow. Belgian Blue cattle are the cartoonish demonstration.
Effect on hypertrophy: Variable in humans. Reports range from minimal to substantial. Mechanism is real, but pharmacokinetics in humans are still being worked out.
Typical protocol: 100mcg daily, subcutaneous, 30-day cycles.
Cost: $200 to $400 per cycle.
Why it ranks sixth: Strongest theoretical mechanism on the list, but human data is thin and quality varies wildly between batches.
7BPC-157
BPC-157 is not a hypertrophy peptide directly. It earns a top-10 spot because it is the single most effective peptide for tendon, ligament, and joint healing, which means you can train harder more often without breaking down.
Effect on hypertrophy: Indirect through training volume tolerance. Lifters who can train 5 times per week at high intensity grow more than those limited to 3 by chronic injury.
Typical protocol: 250 to 500mcg daily for 4 to 8 weeks per cycle.
Cost: $40 to $70 monthly.
Why it ranks seventh: Cheap, well-tolerated, and unlocks more training volume by keeping connective tissue healthy.
8TB-500 (Thymosin Beta-4)
TB-500 is the systemic counterpart to BPC-157. Where BPC-157 acts most strongly at the injection site, TB-500 distributes throughout the body and aids broader recovery, including muscle, tendon, and connective tissue.
Effect on hypertrophy: Indirect through faster recovery between sessions. Some users report better workout-to-workout performance within 2 to 3 weeks.
Typical protocol: 2 to 5mg weekly, split into 2 doses, for 4 to 6 week cycles.
Cost: $90 to $150 monthly.
Why it ranks eighth: Excellent recovery support, often paired with BPC-157 for compound effect.
9Sermorelin
Sermorelin is the original GHRH analog and the most accessible. Less potent than CJC-1295 or Tesamorelin, but easier to source through clinics, well-tolerated, and effective for moderate GH support.
Effect on hypertrophy: 2 to 4 pounds of lean mass over 12 weeks. Modest but real.
Typical protocol: 200 to 500mcg subcutaneous, nightly. 12-week cycles.
Cost: $150 to $250 monthly.
Why it ranks ninth: Easier to access through clinics than CJC-1295, but lower potency. Good entry-level GH-axis option.
10GHRP-6
GHRP-6 is the original ghrelin-mimetic peptide. Strong GH pulse, strong appetite increase. The hunger signaling makes it useful for hard gainers who struggle to eat enough to grow.
Effect on hypertrophy: Comparable to Ipamorelin when stacked with a GHRH, with the bonus appetite effect.
Typical protocol: 100 to 200mcg, 2 to 3 times daily, stacked with CJC-1295.
Cost: $50 to $90 monthly.
Why it ranks tenth: Cheap and effective, but the prolactin and cortisol bumps make Ipamorelin the cleaner choice for most users.
The Practical Stack for Most Lifters
If you are reading this and trying to figure out where to start, the answer for 90% of people is CJC-1295 + Ipamorelin as the foundation, BPC-157 added for connective tissue support, and a TB-500 cycle if you have lingering injuries. Total cost is around $300 monthly, results are predictable, and the side effect profile is mild.
More aggressive lifters chasing maximum hypertrophy in a short window add IGF-1 LR3 in 4 to 6 week pulses on top of the GH stack. This is the protocol that produces the most dramatic before-and-after photos in peptide communities. It also requires careful insulin sensitivity monitoring and is not for beginners.
What You Will Not Get From Peptides
Peptides will not replace training. They will not replace eating in surplus. They will not produce 20 pounds of lean mass in 12 weeks the way a gram of test will. They will not work if your sleep is broken or your protein intake is low.
What they will do is shift the rate at which good training and good nutrition produce visible muscle. If you are already doing the work, peptides accelerate it. If you are not, no peptide stack will compensate.
Where to Source These Peptides
Source quality is the single biggest variable in peptide outcomes. A 95% pure CJC-1295 from a verified vendor outperforms a 60% pure batch of any peptide from an unknown source.
For the GH-axis peptides (CJC-1295, Ipamorelin, Sermorelin, Hexarelin, Tesamorelin) and for BPC-157 and TB-500, the vendors that consistently show clean COAs are Apollo Peptide Sciences, Pantheon Peptides, and Amino Club. For IGF-1 LR3 and Follistatin specifically, Ascension Peptides tends to have the most consistent supply.
Related Guides & Resources
💉
Safe Injection Practices
Proper subcutaneous injection technique for daily muscle growth peptide use.
⚙️
Understanding Peptide Dosing
How to calculate and measure muscle growth peptide dosages accurately.
Get Our Muscle Growth Peptide Protocol Guide
Complete protocols for Ipamorelin, CJC-1295, GHRP-6, and stacking strategies. Free guide inside.