Melanotan II vs NA Semax Amidate
Well Studied vs Well Studied
monitor Mechanism-based · 51% Both Melanotan II and NA Semax Amidate can raise blood pressure. Monitor BP regularly and consider adding cardiovascular support (cardarine, telmisartan, or similar).
Molecular Data
Melanotan II NA Semax Amidate
Weight — 1,007.16 Da
Half-life ~2 hours 2-10 hours
Chain — 7 amino acids
Type Synthetic alpha-MSH analog Modified ACTH analog
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
NA Semax Amidate
01 Direct brain access via olfactory nerves
02 Rapid onset (15-30 minutes)
03 Proven cognitive efficacy
04 Extended half-life vs standard Semax
05 Enhanced BDNF upregulation
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
NA Semax Amidate
600-1200mcg per administration / 1-2x daily for 10-30 days
Research protocol 200mcg 1x daily
Neuroprotection study 400mcg 1x daily
Side Effects
Melanotan II
Nausea (pre-treatment with antiemetics recommended)
Facial flushing
Temporary blood pressure elevation
Fatigue
Spontaneous erections
NA Semax Amidate
Mild nasal irritation (intranasal)
Slight headache initially
Contraindications
History of melanoma or dysplastic nevi
Pregnancy or breastfeeding
Cardiovascular conditions
Uncontrolled hypertension
Not recommended during pregnancy
Active nasal congestion or sinus infection
Individuals on neurotransmitter-affecting medications without consultation
Research Evidence
Melanotan II NA Semax Amidate
Status Well Studied Well Studied
References 4 studies 5 studies
Latest 2024 2025
FDA Approved No No
Full Melanotan II profile Full NA Semax Amidate profile Melanotan II calculator NA Semax Amidate calculator
More comparisons: BPC-157
This comparison is for educational and research purposes only. Consult a healthcare professional before use.