New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareThymulin vs Semaglutide

Thymulin vs Semaglutide

Side-by-side comparison of key properties, dosing, and research.

Immune Support
Thymulin
GLP-1 / Weight Loss Agonists
Semaglutide
Summary
Thymulin is a nonapeptide hormone produced exclusively by the thymic epithelium. It requires zinc for biological activity and plays a critical role in T-lymphocyte maturation, differentiation, and immune regulation. Thymulin levels decline dramatically with age, contributing to immunosenescence.
Semaglutide is an FDA-approved GLP-1 receptor agonist originally developed for type 2 diabetes that has proven remarkably effective for weight loss. Clinical trials show average 15–20% body weight reduction. It is marketed as Ozempic (diabetes) and Wegovy (weight management).
Half-Life
~30 minutes active half-life
~7 days
Admin Route
SubQ
SubQ, Oral
Research
Typical Dose
20-30 mcg
0.25 mg → 0.5 mg → 1 mg → 1.7 mg → 2.4 mg
Frequency
10 days per month (Khavinson protocol)
Once weekly, subcutaneous
Key Benefits
  • Enhances T-cell maturation and differentiation
  • Boosts NK cell cytotoxic activity
  • Reduces inflammatory cytokine production (TNF-α, IL-1)
  • Anti-nociceptive (pain-reducing) properties
  • Restores age-related immune decline
  • Anti-inflammatory via serotonin pathway modulation
  • Average 15–20% body weight reduction in clinical trials (STEP trials)
  • Significant reduction in appetite and food cravings
  • Improvement in blood sugar control and insulin sensitivity
  • Reduces cardiovascular risk (SELECT trial: 20% reduction in MACE)
  • May reduce risk of kidney disease
  • Improves metabolic markers (cholesterol, blood pressure)
  • FDA-approved — extensively studied with robust safety data
  • Weekly dosing convenience
Side Effects
  • Injection site reactions
  • Mild fatigue initially as immune system activates
  • Nausea (most common, especially during titration)
  • Vomiting
  • Diarrhea or constipation
  • Abdominal discomfort
  • +4 more
Stacks With