Chonluten vs Follistatin 315
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & Longevity
ChonlutenAnabolic & IGF
Follistatin 315- Summary
- Chonluten is a tripeptide bioregulator (Glu-Asp-Leu) developed by Professor Vladimir Khavinson, tissue-specific to the bronchi and lungs. While related to Bronchogen (a tetrapeptide), Chonluten is a shorter tripeptide sequence. It supports bronchial mucosal cell function, promotes respiratory epithelial regeneration, and is used in protocols for COPD, chronic bronchitis, and pulmonary anti-aging.
- Follistatin 315 is a splice variant isoform of follistatin produced by alternative mRNA processing. Unlike Follistatin 344 which is tethered to cell surfaces via heparan sulfate proteoglycans, FST-315 circulates freely in the bloodstream and has broader systemic distribution. It is the predominant circulating form and exerts systemic myostatin inhibition as well as FSH suppression, making it relevant to both muscle growth and reproductive endocrinology.
- Half-Life
- Short (minutes for the peptide); sustained gene-regulatory effects
- ~3–5 hours (longer systemic circulation vs FST-344)
- Admin Route
- SubQ, Oral
- SubQ, IM
- Research
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- Typical Dose
- 10 mg per day
- No established human dosing protocol
- Frequency
- Daily for 10–30 days
- Research use only
- Key Benefits
- Supports bronchial mucosal regeneration and repair
- May improve mucociliary clearance in chronic respiratory conditions
- Anti-inflammatory effects on bronchial epithelium
- Pulmonary anti-aging and tissue preservation
- Supports lung function in COPD and chronic bronchitis
- Well tolerated in combination with other Khavinson bioregulators
- Short tripeptide with efficient cellular penetration
- Systemic myostatin inhibition for whole-body muscle growth
- Freely circulating — broader tissue distribution than FST-344
- Strong FSH-suppressive activity useful in certain hormonal protocols
- Potential for greater anabolic effect across multiple muscle groups simultaneously
- May be more relevant to reproductive endocrinology applications
- Studied in gene therapy approaches for muscular dystrophy
- Side Effects
- Generally well tolerated
- Mild injection site reactions possible
- No significant adverse pulmonary events reported
- Systemic FSH suppression — significant concern for fertility
- Greater potential for off-target effects vs FST-344 due to systemic distribution
- Limited human safety data
- Potential cardiac hypertrophy with prolonged high-dose exposure
- Stacks With
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