AOD-9604 vs Melanotan II
Updated July 21, 2026 · Reviewed by the PeptidesDB Editorial team
A data-driven comparison of AOD-9604 and Melanotan II (also searched as Melanotan II vs AOD-9604) — effect profiles, evidence, side effects, and which suits weight loss, muscle, or healing goals.
Verdict
AOD-9604 centers on metabolic, while Melanotan II leans toward skin. On indexed research, AOD-9604 is ahead (AOD-9604: 4 studies, Human evidence; Melanotan II: 4, Preclinical). Choose by goal — and read the primary studies. This is research information, not medical advice.
Key takeaways
- •AOD-9604 is strongest for metabolic; Melanotan II for skin.
- •Evidence: AOD-9604 Human evidence (4 studies) vs Melanotan II Preclinical (4).
- •Both are research-use compounds — not FDA-approved.
Effect profiles, overlaid
At a glance
Modified hGH Fragment | Fat Loss Peptide
Synthetic Melanocortin Peptide | Tanning & Sexual Function
AOD-9604 vs Melanotan II: side-by-side
| Metric | AOD-9604 | Melanotan II |
|---|---|---|
| Class | Weight Loss | Skin |
| Regulatory status | Research use only | Research use only |
| Evidence grade | Human evidence | Preclinical |
| Studies indexed | 4 | 4 |
| Research level | Well Studied | Well Studied |
| Strongest effect | Metabolic & appetite | Skin & aesthetics |
| Healing & recovery | 3.0▲ | 1.0 |
| Muscle & body comp | 0.0 | 0.0 |
| Metabolic & appetite | 4.0▲ | 0.0 |
| Neuro & mood | 0.0 | 2.0▲ |
| Sleep & circadian | 0.0 | 0.0 |
| Inflammation & immune | 0.0 | 0.0 |
| Skin & aesthetics | 2.0 | 4.0▲ |
▲ marks the higher community effect score (0–5 perceived-effect signal, not clinical efficacy).
Mechanism & pharmacokinetics
| Property | AOD-9604 | Melanotan II |
|---|---|---|
| Mechanism | Modified hGH fragment (176–191) | Melanocortin-receptor agonist |
| Route | Subcutaneous injection (research use) | Subcutaneous injection (research use) |
Established pharmacology — curated for well-characterized compounds and AI-summarized otherwise. A blank (—) means no reliable single value is published (half-life figures for some peptides genuinely disagree across sources). Verify against primary sources such as FDA labels and ClinicalTrials.gov.
What is AOD-9604?
A GH-fragment–derived peptide primarily discussed for fat loss and body-composition change, sometimes with cartilage and joint-repair context.
Full AOD-9604 profile, mechanism & studies →What is Melanotan II?
### Summary Melanotan II is a synthetic analog of the naturally occurring peptide hormone alpha-melanocyte-stimulating hormone (α-MSH), primarily studied for its effects on skin pigmentation and potential therapeutic applications. Research has also explored its impact on mood and stress responses, though caution is advised due to potential side effects and safety concerns.
Full Melanotan II profile, mechanism & studies →Which is better for your goal?
| Goal | Better fit | Why |
|---|---|---|
| Healing | AOD-9604 | 3.0/5 effect signal |
| Metabolic | AOD-9604 | 4.0/5 effect signal |
| Neuro | Melanotan II | 2.0/5 effect signal |
| Skin | Melanotan II | 4.0/5 effect signal |
Fit reflects community-perceived effect profiles — not head-to-head trials. Read each peptide's studies before deciding.
Can you stack AOD-9604 and Melanotan II?
People sometimes combine peptides that target different pathways, but there is little controlled research on this specific pairing and the interactions aren't well characterized. Because neither compound is FDA-approved, we don't publish stacking or dosing protocols here. Any combination should be discussed with a qualified clinician.
AOD-9604 vs Melanotan II: side effects
No community-reported effects logged yet.
No community-reported effects logged yet.
Anonymous community reports (count = number of reports), not clinical incidence rates.
What the research says
AOD-9604 has 4 approved studies indexed (Human evidence), and Melanotan II has 4 (Preclinical). The Librarian re-checks PubMed, Europe PMC and ClinicalTrials daily, so these counts move. Open each profile to read the summaries and sources.
Frequently asked questions
Is AOD-9604 or Melanotan II better?
It depends on your goal. AOD-9604 is strongest for metabolic; Melanotan II for skin. AOD-9604 has more indexed studies (4). See the goal-by-goal breakdown above.
Is AOD-9604 or Melanotan II better for weight loss?
AOD-9604 shows the stronger metabolic & appetite profile (4.0/5) in community effect data — though weight-loss outcomes depend on the individual and the evidence base.
Which has more research, AOD-9604 or Melanotan II?
AOD-9604 has 4 approved studies indexed (Human evidence); Melanotan II has 4 (Preclinical). Higher counts mean more to read, not proven superiority.
Can you stack AOD-9604 and Melanotan II?
Some users combine peptides, but there's little controlled data on this specific pairing, and interactions aren't well characterized. We don't publish stacking protocols for compounds that aren't FDA-approved. Discuss any combination with a qualified clinician.
What are the side effects of AOD-9604 vs Melanotan II?
AOD-9604: no community-reported effects logged yet. Melanotan II: none logged yet. These are anonymous reports, not incidence rates — see each profile.
Is AOD-9604 or Melanotan II FDA-approved?
AOD-9604 is a research-use compound and is not FDA-approved. Melanotan II is not FDA-approved. Research-use status is not a legal clearance to compound or use in humans.
Is Melanotan II better than AOD-9604?
For skin, Melanotan II has the edge; for metabolic, AOD-9604 does. Neither is universally "better" — it's goal-dependent, and both should be weighed against their evidence base above.
Comparing related peptides
Regulatory & legal status
AOD-9604 and Melanotan II are research-use compounds and are not FDA-approved for human use. FDA approval and compounding rules for peptides change frequently, and research-use status is not a legal clearance for human use. The FDA does not review compounded drugs for safety, effectiveness, or quality. Verify current status with primary sources before acting. Last reviewed July 21, 2026.