CJC-1295 vs Follistatin-344.
Quick Verdict
CJC-1295 is a ghrh analog primarily researched for muscle growth, fat loss, recovery, while Follistatin-344 is a myostatin inhibitor studied for muscle hypertrophy, strength. CJC-1295 has substantially more indexed research (20 studies) compared to Follistatin-344 (9 studies). A key distinction: CJC-1295 has FDA approval status.
Side-by-Side Analysis
| Dimension | CJC-1295 | Follistatin-344 |
|---|---|---|
| Category | GHRH Analog | Myostatin Inhibitor |
| Mechanism | Stimulates prolonged GH and IGF-1 release by mimicking the body's natural GHRH signal to the pituitary gland. | Blocks myostatin (the body's muscle growth limiter) and activin, allowing enhanced muscle development and regeneration beyond normal physiological limits. |
| Half-Life | ~7 days | ~6 hours |
| Route | SubQ | SubQ |
| Typical Dose | 1000–1000 mcg | 100–100 mcg |
| Frequency | 3x/week | 7x/wk |
| Evidence Level | Moderate | Preclinical |
| Indexed Studies | 20+ indexed | 9+ indexed |
| FDA Status | Approved | Research Only |
| Lowest Price | $59.99 / 10mg via Amino Club | $499.00 / 10mg via Bio Longevity Labs |
| Per-mg Cost | $6.00/mg | $49.90/mg |
Mechanism of Action Comparison
How CJC-1295 Works
CJC-1295 CJC-1295 is a synthetic growth-hormone-releasing hormone analog studied for its ability to sustainably elevate GH and IGF-1, supporting muscle growth and fat loss.
Stimulates prolonged GH and IGF-1 release by mimicking the body's natural GHRH signal to the pituitary gland. Preserves natural pulsatile GH release pattern.
How Follistatin-344 Works
Follistatin-344 Follistatin-344 is a naturally occurring protein studied for its ability to block myostatin, the body's built-in muscle growth limiter, enabling significantly enhanced muscle development.
Blocks myostatin (the body's muscle growth limiter) and activin, allowing enhanced muscle development and regeneration beyond normal physiological limits.
Key Mechanistic Difference
CJC-1295 operates as a ghrh analog, while Follistatin-344 functions as a myostatin inhibitor — these are fundamentally different pharmacological approaches. CJC-1295 has a significantly longer half-life (~7 days) compared to Follistatin-344 (~6 hours), which impacts dosing frequency and sustained activity.
Research Evidence
CJC-1295
20 studies- CJC-1295 GH/IGF-1 elevation in humansTeichman et al. (J. Clin. Endocrinol. Metab.): Single injection increases GH 2-10x for 6+ days and IGF-1 1.5-3x for 9-11…Moderate
- CJC-1295 preserves pulsatile GH secretion in humansIonescu & Bhatt (J. Clin. Endocrinol. Metab.): Demonstrates 7.5-fold increase in basal GH, 46% increase in mean GH, and …Moderate
- Long-acting GHRH analogs increase pituitary GH mRNAAnimal study shows CJC-1295 increases total pituitary RNA and GH mRNA, suggesting proliferation of somatotroph cells for…Preclinical
Follistatin-344
9 studies- Follistatin gene therapy increases muscle mass and strengthRodino-Klapac et al. (Mol. Ther.): AAV-delivered follistatin 344 increases muscle mass and fiber diameter across multipl…Preclinical
- Follistatin as myostatin antagonist therapeutic potentialKalista et al.: Review of follistatin's role as primary endogenous myostatin antagonist and its therapeutic potential fo…Preclinical
- Follistatin gene transfer for Becker muscular dystrophy (Phase I)Mendell et al. (Mol. Ther.): Phase I clinical trial of AAV1-follistatin gene transfer in Becker muscular dystrophy patie…Moderate
Vendor Pricing
· Affiliate links · Prices verified 2026CJC-1295
1 vendorFollistatin-344
1 vendorAffiliate disclosure: PeptiDex may earn a commission from purchases via vendor links at no extra cost to you. See our methodology.
Frequently Asked Questions
Can I take CJC-1295 and Follistatin-344 together?▼
Yes — CJC-1295 and Follistatin-344 are identified as synergistic in interaction databases. They operate through complementary mechanisms and are commonly combined in research protocols.
Which has more research evidence — CJC-1295 or Follistatin-344?▼
CJC-1295 has 20 indexed studies (highest evidence: Moderate). Follistatin-344 has 9 indexed studies (highest evidence: Preclinical). CJC-1295 has a more extensive research base.
What is the price difference between CJC-1295 and Follistatin-344?▼
At current verified vendor prices, CJC-1295 starts at $6.00/mg while Follistatin-344 starts at $49.90/mg. Prices vary by vendor and vial size — see the full vendor comparison below.
Which is better for muscle growth — CJC-1295 or Follistatin-344?▼
Both are researched for muscle growth. CJC-1295 addresses this via muscle growth, fat loss, recovery. Follistatin-344 approaches it through muscle hypertrophy, strength. The optimal choice depends on your specific research protocol and which mechanism aligns with your objectives.
Is CJC-1295 or Follistatin-344 FDA-approved?▼
CJC-1295 has FDA approval (or is derived from an FDA-approved compound). Follistatin-344 is a research compound without FDA approval for human use. FDA status reflects regulatory evaluation — not necessarily superiority for all research applications.
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Research Use Only — Not Medical Advice
This comparison is provided for educational and research purposes only. It does not constitute medical, prescribing, or treatment advice. Clinical data cited here is sourced from published peer-reviewed trials and FDA labels. Consult a qualified healthcare professional before making any decisions about medications or research compounds. PeptiDex is an informational resource and does not sell pharmaceutical products.