TB-500 vs Tesamorelin
Well Studied vs FDA Approved
synergistic Mechanism-based · 47% TB-500 and Tesamorelin work through complementary pathways. Growth hormone signaling supports tissue repair processes. A well-established combination in recovery protocols.
Molecular Data
TB-500 Tesamorelin
Weight 4,963.44 Da 5,135.9 Da
Half-life ~2 hours 26-38 minutes
Chain 43 amino acids 44 amino acids
Type Thymosin fragment GHRH analog
Key Benefits
TB-500
01 Superior systemic tissue repair
02 Accelerated muscle, tendon, and ligament healing
03 Enhanced cell migration and angiogenesis
04 Comprehensive regenerative effects
05 Neuroprotective properties
Tesamorelin
01 FDA-approved formulation
02 Selective visceral fat targeting (15-20% reduction)
03 Proven clinical efficacy
04 Standardized dosing
05 37% liver fat reduction in NAFLD
06 Preserved subcutaneous fat
Dosing Protocols
TB-500
2-5mg per injection (higher doses for serious injuries) / 2-3x weekly (e.g., Monday, Wednesday, Friday)
General tissue repair 2-3mg 2x weekly
Serious injury recovery 4-5mg 3x weekly
Athletic enhancement 2-3mg 2x weekly
Chronic conditions 3-4mg 2-3x weekly
Maintenance 2mg 1-2x weekly
Post-surgical recovery 3-5mg 3x weekly
Tesamorelin
1.4-2mg daily (FDA-approved: 2mg for HIV lipodystrophy) / Once daily (evening preferred for GH rhythm)
HIV Lipodystrophy (FDA-approved) 1.4mg Once daily
Visceral Fat Reduction 2mg Once daily
Anti-aging/Body Composition 1-2mg 5-7x weekly
NAFLD Treatment 2mg Once daily (12 months)
Cognitive Enhancement 1mg Once daily (20 weeks)
Side Effects
TB-500
Generally minimal side effects
Possible mild injection site reactions
Temporary fatigue in some users
Tesamorelin
Injection site reactions (17%)
Joint pain (13%)
Water retention
Contraindications
Active cancer treatment (due to angiogenic effects)
Pregnancy or breastfeeding
Immunosuppressive medications (consult provider)
WADA prohibited for competitive athletes
Active malignancy
Pituitary disorders
Pregnancy
Research Evidence
TB-500 Tesamorelin
Status Well Studied FDA Approved
References 6 studies 5 studies
Latest November 2025 June 2025
FDA Approved No Yes
This comparison is for educational and research purposes only. Consult a healthcare professional before use.