Thymalin vs Thymulin
Well Studied vs Well Studied
compatible Thymalin is a peptide mixture while thymulin is a single defined peptide; can complement each other.
Molecular Data
Thymalin Thymulin
Weight Variable (peptide complex) 857 Da (peptide), 921 Da (with zinc)
Half-life Not established (complex mixture); effects persist for weeks ~10 minutes (free form); extended with nanoparticle formulations
Chain — 9 amino acids
Type Polypeptide mixture Thymic nonapeptide hormone
Key Benefits
Thymalin
01 Potent immune system restoration and modulation
02 Significant geroprotective (anti-aging) effects
03 Reduced mortality rate in clinical studies (2.0-2.1 fold)
04 Normalized cardiovascular, endocrine, and nervous system function
05 Reduced acute respiratory disease incidence (2.0-2.4 fold)
06 Enhanced T-lymphocyte differentiation (CD4+, CD8+)
07 Antitumor effects in animal studies
08 Safe for elderly populations with no side effects
Thymulin
01 Essential for T-cell maturation and differentiation
02 Modulates immune responses (immunomodulatory)
03 Anti-inflammatory properties
04 Declines with age - restoration may combat immunosenescence
05 Well-defined single peptide (unlike extracts)
06 Studied in autoimmune disease research
07 Neuroendocrine regulatory effects
08 Zinc-dependent activity allows for regulation
Dosing Protocols
Thymalin
10mg per injection / Daily for 5-10 days, then break
Immune restoration 10 mg Daily
Standard cycle 10 mg Daily for 5-10 days
Maintenance 10 mg 1-2x yearly cycles
With Epithalamin 10 mg each Annual cycles
Thymulin
1-10mcg per injection (research protocols) / Daily during research protocols
Research protocol (immune) 1-10 mcg Daily
Intranasal (experimental) Variable As studied
Side Effects
Thymalin
Injection site reactions (mild)
Practically no side effects reported
Thymulin
Generally well-tolerated in research
Injection site reactions (mild)
Contraindications
Autoimmune diseases (use with caution)
Organ transplant recipients (immunosuppression needed)
Pregnancy or breastfeeding
Known hypersensitivity
Autoimmune diseases (use with medical supervision)
Organ transplant recipients on immunosuppression
Pregnancy or breastfeeding
Known hypersensitivity to thymic peptides
Research Evidence
Thymalin Thymulin
Status Well Studied Well Studied
References 4 studies 4 studies
FDA Approved No No
This comparison is for educational and research purposes only. Consult a healthcare professional before use.