Melanotan II vs TB-500
Well Studied vs Well Studied
compatible Different receptor families with no pathway overlap.
Molecular Data
Melanotan II TB-500
Weight — 4,963.44 Da
Half-life ~2 hours ~2 hours
Chain — 43 amino acids
Type Synthetic alpha-MSH analog Thymosin fragment
Key Benefits
Melanotan II
01 Rapid tanning without UV exposure
02 Enhanced sexual function and libido
03 Appetite suppression
04 Improved mood via melanocortin activation
05 Photoprotection through increased melanin
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
Dosing Protocols
Melanotan II
Loading: Start 0.25mg daily, increase to 0.5-1mg; Maintenance: 0.5-1mg 2-3x weekly / Loading phase: Daily for first week, then tanning maintenance 2-3x weekly or as needed for sexual enhancement
Initial loading phase 0.25mg 1x daily
Tanning maintenance 0.5-1mg 2-3x weekly
Sexual enhancement 0.5-1mg As needed
Minimal side effects 0.1-0.25mg Every other day
Photoprotection 0.5mg 2x weekly
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
Side Effects
Melanotan II
Nausea (pre-treatment with antiemetics recommended)
Facial flushing
Temporary blood pressure elevation
Fatigue
Spontaneous erections
TB-500
Generally minimal side effects
Possible mild injection site reactions
Temporary fatigue in some users
Contraindications
History of melanoma or dysplastic nevi
Pregnancy or breastfeeding
Cardiovascular conditions
Uncontrolled hypertension
Active cancer treatment (due to angiogenic effects)
Pregnancy or breastfeeding
Immunosuppressive medications (consult provider)
WADA prohibited for competitive athletes
Research Evidence
Melanotan II TB-500
Status Well Studied Well Studied
References 4 studies 4 studies
Latest 2024 March 2024
FDA Approved No No
This comparison is for educational and research purposes only. Consult a healthcare professional before use.